EXPRESS SCRIPTS INC, S-3/A, 1999-05-24

EXPRESS SCRIPTS INC
S-3/A, 1999-05-24
SPECIALTY OUTPATIENT FACILITIES, NEC

Previous: PROCEPT INC, 10-Q, 1999-05-24

Next: NUVEEN PREMIUM INCOME MUNICIPAL FUND 2 INC, N-2/A, 1999-05-24

<PAGE> 1

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 24, 1999

REGISTRATION NO. 333-74613
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
------------------------

AMENDMENT NO. 2

FORM S-3
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
------------------------

EXPRESS SCRIPTS, INC.
(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S> <C>
DELAWARE 43-1420563
(STATE OR OTHER JURISDICTION OF INCORPORATION OR (I.R.S. EMPLOYER IDENTIFICATION NUMBER)
ORGANIZATION)
</TABLE>

13900 RIVERPORT DRIVE

MARYLAND HEIGHTS, MISSOURI 63043
(314) 770-1666
(ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)

------------------------

THOMAS M. BOUDREAU, ESQ.
GENERAL COUNSEL AND SECRETARY
EXPRESS SCRIPTS, INC.

13900 RIVERPORT DRIVE

MARYLAND HEIGHTS, MISSOURI 63043
(314) 770-1666
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
OF AGENT FOR SERVICE)

------------------------

COPIES TO:

<TABLE>
<S> <C>
VINCENT PAGANO, JR., ESQ. JAMES J. CLARK, ESQ.
SIMPSON THACHER & BARTLETT CAHILL GORDON & REINDEL
425 LEXINGTON AVENUE 80 PINE STREET
NEW YORK, NEW YORK 10017-3954 NEW YORK, NEW YORK 10005
(212) 455-2000 (212) 701-3000
</TABLE>

------------------------

APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this registration statement.

If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act,
other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [ ]

If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]
- ------------

If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
- ------------

If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. [ ]

------------------------

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON ANY DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE,
ON ANY DATE THE SECURITIES AND EXCHANGE COMMISSION, ACTING PURSUANT TO SECTION
8(a), MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE> 2

THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.

SUBJECT TO COMPLETION, DATED MAY 24, 1999

4,500,000 SHARES

[EXPRESS SCRIPTS LOGO]
CLASS A COMMON STOCK
------------------------

We are selling 4,500,000 shares of our Class A common stock. We have
granted the underwriters an option to purchase a maximum of 675,000 additional
shares of our Class A common stock to cover over-allotments of shares.

We have two classes of authorized common stock, our Class A and Class B
common stock. Our Class B common stock has ten votes per share, and our Class A
common stock has one vote per share. NYLIFE HealthCare Management, Inc. is the
holder of all of our outstanding Class B common stock. After this offering,
NYLIFE HealthCare will have 86.9% of the combined voting power of our common
stock.

Our Class A common stock is traded on The Nasdaq National Market under the
symbol "ESRX." On May 21, 1999, the last reported sale price for our Class A
common stock on The Nasdaq National Market was $70.875 per share.

INVESTING IN OUR CLASS A COMMON STOCK INVOLVES RISKS. SEE "RISK FACTORS"
BEGINNING ON PAGE 8.

<TABLE>
<CAPTION>
UNDERWRITING
PRICE TO DISCOUNTS AND PROCEEDS TO
PUBLIC COMMISSIONS EXPRESS SCRIPTS, INC.
-------- ------------- ---------------------
<S> <C> <C> <C>
Per Share................................... $ $ $
Total....................................... $ $ $
</TABLE>

The shares of Class A common stock are offered by the several underwriters.
Delivery of the shares of Class A common stock will be made on or about
, 1999.

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

CREDIT SUISSE FIRST BOSTON
BT ALEX. BROWN

WARBURG DILLON READ LLC

MORGAN KEEGAN & COMPANY, INC.
A.G. EDWARDS & SONS, INC.

Prospectus dated , 1999
<PAGE> 3

-------------------------

TABLE OF CONTENTS

<TABLE>
<CAPTION>
PAGE
----
<S> <C>
PROSPECTUS SUMMARY.................. 1
RISK FACTORS........................ 8
USE OF PROCEEDS..................... 15
PRICE RANGE OF COMMON STOCK AND
DIVIDEND POLICY................... 16
CAPITALIZATION...................... 17
SELECTED FINANCIAL AND OPERATING
DATA.............................. 18
UNAUDITED CONSOLIDATED CONDENSED PRO
FORMA FINANCIAL DATA.............. 20
MANAGEMENT'S DISCUSSION AND ANALYSIS
OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS..................... 31
BUSINESS............................ 47
</TABLE>

<TABLE>
<CAPTION>
PAGE
----
<S> <C>
MANAGEMENT.......................... 64
PRINCIPAL STOCKHOLDERS.............. 67
DESCRIPTION OF CAPITAL STOCK........ 69
DESCRIPTION OF THE SENIOR CREDIT
FACILITY.......................... 71
UNDERWRITING........................ 72
NOTICE TO CANADIAN RESIDENTS........ 74
FORWARD-LOOKING STATEMENTS.......... 75
WHERE YOU CAN FIND MORE
INFORMATION....................... 77
LEGAL MATTERS....................... 78
EXPERTS............................. 78
INDEX TO FINANCIAL STATEMENTS....... F-1
</TABLE>

-------------------------

YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS DOCUMENT OR TO
WHICH WE HAVE REFERRED YOU. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH
ANY DIFFERENT INFORMATION. THIS DOCUMENT MAY ONLY BE USED WHERE IT IS LEGAL TO
SELL THESE SECURITIES. THE INFORMATION IN THIS DOCUMENT MAY ONLY BE ACCURATE AS
OF THE DATE OF THIS DOCUMENT.

i
<PAGE> 4

PROSPECTUS SUMMARY

This summary highlights information contained elsewhere in this prospectus
and may not contain all of the information you should consider before investing
in the shares of Class A common stock offered by this prospectus. You should
read this entire prospectus carefully. You should also keep in mind the
following points as you read this prospectus:

- - Unless the context otherwise indicates, references in this document to "we,"
"us" and "our" refer to Express Scripts, Inc. and its subsidiaries. References
to "NYLIFE HealthCare" refer to NYLIFE HealthCare Management, Inc.

- - Unless we tell you otherwise, all information in this prospectus has been
adjusted to reflect a two-for-one stock split of our common stock that
occurred on October 30, 1998

- - Unless we tell you otherwise, the information in this prospectus assumes that
the underwriters will not exercise their over-allotment option to purchase
additional shares of our Class A common stock

- - Information regarding our relative size is based on estimates of our
management in light of their experience in the industry

- - Membership counts may not be comparable between us and DPS, or between us and
our competitors, although we believe they provide a reasonable estimation of
the population we serve

THE COMPANY

We are the largest pharmacy benefit management company, commonly referred
to as a PBM, independent of pharmaceutical manufacturer or drug store ownership
in North America. PBMs coordinate the distribution of outpatient pharmaceuticals
through a combination of benefit management services, including retail drug card
programs and mail pharmacy services. We provide these services for health care
payors. We believe our independence from pharmaceutical manufacturer ownership
allows us to make unbiased formulary recommendations to our clients, balancing
both clinical efficacy and cost. We also believe our independence from drug
store ownership allows us to construct a variety of convenient and
cost-effective retail pharmacy networks for our clients, without favoring any
particular pharmacy chain.

We are the third largest PBM in North America in terms of total members,
and we have one of the largest managed care membership bases of any PBM. Before
1998, our growth was driven almost exclusively by our ability to expand our
product offerings and increase our client and membership base through internally
generated growth. From 1992 through 1997, our net revenues and net income
increased at compound annual growth rates of 58% and 49%, respectively. While
our internal growth strategy remains a major focus, we have recently
complemented our internal growth strategy with two substantial acquisitions. In
April 1998, we acquired ValueRx, and in April 1999, we acquired Diversified
Pharmaceutical Services, or DPS. These acquisitions added to the scale of our
membership base, broadened our product offerings and enhanced our clinical
capabilities, systems and technologies. On a pro forma basis including this
offering, our net revenues and net income for 1998 would have been approximately
$3.4 billion and $52.2 million, respectively, excluding a $709.9 million
after-tax write-down of assets charge by DPS prior to being acquired by us and a
$1.0 million after-tax restructuring charge.

1
<PAGE> 5

As of March 31, 1999, after giving effect to the DPS acquisition, we would
have served approximately 47 million members, including 10 million members under
DPS's contract with United HealthCare which will terminate without renewal on
May 31, 2000. Besides United HealthCare, some of our other large clients include
Aetna U.S. Healthcare, Oxford Health Plans and the State of New York Empire Plan
Prescription Drug Program.

Our PBM services are primarily delivered through networks of retail
pharmacies that are under non-exclusive contract with us and through five mail
pharmacy service centers that we own and operate. Our largest retail pharmacy
network includes more than 52,000 retail pharmacies, representing more than 99%
of all retail pharmacies in the United States. In 1998, including ValueRx and
DPS on a pro forma basis, we processed approximately 284 million pharmacy claims
with estimated total drug spending of approximately $10 billion.

INDUSTRY

Prescription drugs represent the fastest growing component of health care
expenditures in the United States. Since 1990, pharmaceutical sales have grown
at a compound annual growth rate of approximately 9%, and the U.S. Health Care
Financing Administration projects a compound annual growth rate of approximately
10% through 2007. This growth is principally driven by new drug introductions,
increases in drug utilization rates and changes in drug strength, therapeutic
mix and dosage. In response to these trends, health benefit providers have been
seeking ways to better understand and control drug costs. PBMs help health
benefit providers to provide a cost-effective drug benefit and better understand
the impact of prescription drug utilization on total health care expenditures.

STRATEGY

Our strategy is to increase our membership base and grow profitably by
focusing on the following:

- Generation of Sales to New Clients and Growth from Existing Clients. Our
predominant growth strategy is to pursue sales to new clients and
generate growth in the membership base of existing clients. Our compound
annual growth rate in members, excluding our recent acquisitions, is 48%
since our initial public offering in 1992. The managed care market
segment has experienced, and we believe will continue to experience,
solid growth. We believe additional opportunities also exist in the large
employer and union market segments. Growth within the membership base of
existing clients is also important to our strategy. When our clients
market their service offerings to their potential members, they generally
market our prescription drug program as part of their offerings. As their
client base grows, our membership base typically also grows. Our recently
announced internet pharmacy service initiative, YourPharmacy.com and
DrugDigest.org, will assist us in executing this strategy. By allowing us
to communicate more effectively and efficiently with our existing
members, we believe that we will be able to reduce our operating costs by
utilizing on-line communication as opposed to more expensive call center
operations and paper-based correspondence. We also plan to increase the
utilization of our existing mail pharmacies, which processed over 7.4
million prescriptions in 1998, to distribute prescription medications
ordered through our Internet e-commerce site. In addition, we believe
that sales of both pharmaceutical and non-
2
<PAGE> 6

pharmaceutical products to the non-member general public will help us
attract new clients. Furthermore, based on our clinical capabilities,
information databasing and established expertise in managing prescription
drug usage, we believe DrugDigest.org will be a comprehensive and
credible source of information on prescription and non-prescription
medications.

RECENT DEVELOPMENTS

Contemporaneously with this offering, we are offering $200 million in
principal amount of our senior notes due 2009 in a transaction exempt from the
registration requirements under the Securities Act. The net proceeds of our
senior notes offering would be used to repay a portion of the Term B loans under
our $1.05 billion credit facility. This offering is not conditioned upon us
completing the senior notes offering. This prospectus relates only to the
offering of our Class A common stock and to no other securities.

On April 1, 1999, we acquired DPS from SmithKline Beecham and one of its
affiliates for $700 million in cash. With the addition of DPS, we have one of
the largest managed care membership bases of any PBM. In addition, the
acquisition provides us with enhanced clinical capabilities, systems and
technologies.

In connection with our acquisition of DPS, we entered into a $1.05 billion
credit facility and a $150 million senior subordinated bridge credit facility to
finance the acquisition and to refinance all of our existing indebtedness.

enhance our mail pharmacy service utilization, reduce our member service costs,
diversify our revenue base and enable users to make informed medication-related
decisions.

On February 1, 1999, we announced a three-and-a-half-year contract with
Blue Cross and Blue Shield of Massachusetts. Beginning in the second half of
1999, we will provide PBM services, including retail network and mail pharmacy
services, claims processing, clinical management support and other related
services to approximately 1 million members.

On January 14, 1999, DPS announced a five-year contract with Oxford Health
Plans. Under the contract, we provide retail network, claims processing,
clinical management support and other related services to approximately 2
million members.

-------------------------

We were incorporated in Missouri in 1986 and reincorporated in Delaware in
1992. Our principal executive offices are located at 13900 Riverport Drive,
Maryland Heights, Missouri 63043, and our phone number is (314) 770-1666.
Express Scripts(R) is our registered trademark. Our other trademarks include
"ExpressComp(R)", "ExpressReview(R)", "Express Therapeutics(R)", "IVTx(R)",
"PERx(R)", "PERxCare(R)", "PERxComp(R)", "PTE(R)", "ValueRx(R)" and "Value
Health, Inc.(R)". We also acquired several additional trademarks through our
acquisition of DPS.

4
<PAGE> 8

THE OFFERING

Class A common stock offered

by us......................... 4,500,000 shares

Common stock to be outstanding
after this offering...........

Class A common stock.......... 22,732,160 shares

Class B common stock.......... 15,020,000 shares

-----------------

Total common stock............ 37,752,160 shares
-----------------
-----------------

Does not include as of March 1, 1999:

- stock options and similar equity rights
granted to employees and independent
directors to purchase 2,858,752 shares of
our Class A common stock, of which 866,700
were exercisable

- reserved shares of our Class A common
stock for issuance in connection with
certain strategic alliances; see
"Business -- Acquisitions and Strategic
Alliances"

- reserved shares of our Class A common
stock for our Employee Stock Purchase Plan
and our Executive Deferred Compensation
Plan; see Note 10 in our 1998 consolidated
financial statements

Relative rights of holders of
our Class A and Class B common
stock......................... Our Class B common stock has ten votes per
share and our Class A common stock has one
vote per share. NYLIFE HealthCare is the
holder of all our outstanding Class B common
stock. Our Class B common stock
automatically converts to our Class A common
stock on a share-for-share basis upon
transfer by NYLIFE HealthCare to any entity
other than an affiliate of NYLIFE HealthCare
and otherwise at the option of NYLIFE
HealthCare. After this offering, NYLIFE
HealthCare will have 86.9% and the holders
of Class A common stock will have 13.1% of
the combined voting power of our common
stock. In addition, after this offering
NYLIFE HealthCare will own 39.8% and the
holders of Class A common stock will own
60.2% of our outstanding shares of common
stock.

Use of proceeds................. To repay some of our indebtedness, a
substantial portion of which was incurred in
connection with our acquisition of DPS.

The Nasdaq National Market
symbol: ...................... ESRX
5
<PAGE> 9

SUMMARY FINANCIAL AND OPERATING DATA

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31, THREE MONTHS ENDED MARCH 31,
----------------------------------------------- -----------------------------------------
UNAUDITED
UNAUDITED ACTUAL PRO FORMA
ACTUAL PRO FORMA ------------------- -------------------
1996 1997 1998(3)(4) 1998(5)(6) 1998 1999 1998 1999
-------- ---------- ---------- ---------- -------- -------- -------- --------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
STATEMENT OF OPERATIONS DATA:
Net revenues........................ $773,615 $1,230,634 $2,824,872 $3,449,649 $371,362 $899,087 $828,940 $964,453
Gross profit........................ 88,733 111,467 239,875 488,809 32,870 75,440 115,153 140,806
Operating income (loss)............. 39,630 48,850 89,234 (942,167) 14,044 29,000 34,652 50,228
Interest income (expense), net...... 3,450 5,856 (12,994) (59,694) 2,124 (4,829) (15,305) (15,545)(1)
Net income (loss)................... 26,148 33,429 42,674 (658,682) 9,878 13,543 11,297 20,585
Basic earnings per share(2)......... $ 0.81 $ 1.02 $ 1.29 $ (17.52) $ 0.30 $ 0.41 $ 0.30 $ 0.55
Diluted earnings per share(2)....... $ 0.80 $ 1.01 $ 1.27 $ (17.24) $ 0.29 $ 0.40 $ 0.30 $ 0.53
</TABLE>

<TABLE>
<CAPTION>
MARCH 31, 1999
--------------------------------------------------
UNAUDITED ACQUISITION
PRO FORMA AS
UNAUDITED ADJUSTED
ACQUISITION FOR THIS
ACTUAL PRO FORMA(7) OFFERING(7)(8)
---------- ------------ ---------------------
(IN THOUSANDS)
<S> <C> <C> <C>
BALANCE SHEET DATA:
Cash........................................................ $ 115,838 $ 67,757 $ 67,757
Working capital............................................. 140,221 (11,846) (10,802)
Total assets................................................ 1,096,950 2,054,944 2,052,335

Short-term debt........................................... 54,000 -- --
Long-term debt, less current maturities................... 306,000 1,040,000 740,932
---------- ---------- ----------
Total debt.................................................. 360,000 1,040,000 740,932(1)
Stockholders' equity........................................ 267,542 265,592 563,095
</TABLE>

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31, THREE MONTHS ENDED MARCH 31,
-------------------------------------------------- -----------------------------------------------
UNAUDITED
UNAUDITED ACTUAL PRO FORMA
ACTUAL PRO FORMA --------------------- -----------------------
1996 1997 1998(3) 1998(5) 1998 1999 1998 1999
---------- ---------- ----------- ---------- -------- ---------- ---------- ----------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
SELECTED DATA:
Pharmacy benefit covered
lives.................... 10,000 13,000 23,000 46,000 12,000 23,000 22,000 47,000
Drug spending(9)........... $1,636,000 $2,486,000 $ 4,495,000 $9,913,000 $678,000 $1,450,000 $2,396,000 $3,074,000
Pharmacy network claims
processed................ 57,838 73,164 113,177 275,534 19,028 36,028 33,428 79,807
Mail pharmacy prescriptions
filled................... 2,770 3,899 7,426 8,514 1,069 2,279 2,069 2,279
EBITDA(10)................. $ 46,337 $ 59,320 $ 115,667 $ 225,285 $ 16,440 $ 37,487 $ 52,263 $ 68,725
Cash flows provided by
(used in) operating
activities............... $ 29,863 $ 52,503 $ 126,574 -- $ 24,222 $ (3,808) -- --
Cash flows used in
investing activities..... $ (64,808) $ (16,567) $ (426,052) -- $ (4,510) $ (5,677) -- --
Cash flows provided by
financing activities..... $ 48,652 $ 3,033 $ 357,959 -- $ 683 $ 2,722 -- --
</TABLE>

6
<PAGE> 10

(1) The net proceeds of our senior notes offering would be used to repay a
portion of the Term B Loan under our $1.05 billion credit facility. If we
complete our senior notes offering, we do not expect that our pro forma
interest expense or our pro forma total debt will be materially affected.

(2) Earnings per share have been restated to reflect our two-for-one stock
split effective October 30, 1998.

(3) Includes our acquisition of ValueRx effective April 1, 1998.

(4) Includes a corporate restructuring charge of $1,651, $1,002 after tax
relating to our managed vision business. Excluding this restructuring
charge, our basic and diluted earnings per share would have been $1.32 and
$1.30, respectively.

(5) Adjusted to give pro forma effect to our acquisitions of ValueRx and DPS
and the related financings, including this offering and the use of the
estimated net proceeds from this offering, in each case as if it had
occurred on January 1, 1998. The unaudited pro forma statement of
operations data does not give effect to the after-tax write-off of $3,515
in deferred financing fees related to the retirement of our $440,000 credit
facility and $149,068 of the Term B loans from the $1,050,000 credit
facility which would be recognized as an extraordinary item. In addition,
any cost savings we may realize in connection with the integration of DPS
are not reflected in the unaudited pro forma statement of operations data.

(6) Includes a write-down of assets of $1,092,184, $709,920 after tax, related
to the impairment of DPS's goodwill and a corporate restructuring charge of
$1,651, $1,002 after tax. If the acquisition of DPS had occurred on January
1, 1998, goodwill on DPS's books would have been eliminated. Therefore, the
impairment charge for goodwill would not have existed. Excluding these
charges, our net income for fiscal year 1998 would have been $52,240 and
our basic and diluted earnings per share would have been $1.39 and $1.37,
respectively.

(7) Adjusted to give pro forma effect to our acquisition of DPS and the related
financings as if they occurred on March 31, 1999.

(8) Adjusted to give effect to this offering and the use of the estimated net
proceeds from this offering as if they occurred on March 31, 1999.

(9) Drug spending is a measure of the gross aggregate dollar value of drug
expenditures of all programs managed by us. The difference between drug
spending and revenue reported by us is the effect of excluding from
reported revenues:

- the drug ingredient cost for those clients that have established their
own pharmacy networks

- the expenditures for drugs for companies on formulary-only programs
managed by us

- the co-pay portion of drug expenditures that are the responsibility of
members of health plans serviced by us

Therefore, drug spending provides a common basis to compare the drug
expenditures managed by a company given differences in revenue recognition.

(10) EBITDA is earnings before interest, taxes, depreciation and amortization,
or operating income plus depreciation and amortization. EBITDA is presented
because it is a widely accepted indicator of a company's ability to incur
and service indebtedness. EBITDA, however, should not be considered as an
alternative to net income as a measure of operating performance or an
alternative to cash flow as a measure of liquidity. In addition, our
definition of EBITDA may not be comparable to that reported by other
companies.

7
<PAGE> 11

RISK FACTORS

In addition to the other information in this prospectus, the following
factors should be considered carefully in evaluating an investment in the shares
of Class A common stock offered by this prospectus.

FAILURE TO INTEGRATE VALUERX AND DPS COULD ADVERSELY AFFECT OUR BUSINESS

Our acquisitions of ValueRx and DPS have significantly increased our
membership base and the complexity of our operations. In light of both
acquisitions, we have developed and begun to implement an integration plan to
address items such as:

- retention of key employees

- consolidation of administrative and other duplicative functions

- coordination of sales, marketing, customer service and clinical functions

- systems integration

- new product and service development

- client retention and other items

While we have achieved many of our integration goals to date with respect
to the acquisition of ValueRx, some significant integration challenges remain,
including the complete integration of our information technology systems. We
cannot provide any assurance that our integration plan for ValueRx will
successfully address all aspects of our operations, or that we will continue to
achieve our integration goals. In the case of DPS, we cannot provide any
assurance that our integration plan will address all relevant aspects of DPS's
business or that we will be able to implement our integration plan successfully.
In addition, we assumed specific client retention levels when deciding to
purchase ValueRx and DPS. Many clients have relatively short-term contracts, and
we cannot provide any assurance that we will be able to achieve our client
retention targets. Finally, although we conducted an extensive investigation in
evaluating our acquisitions of ValueRx and DPS, it is possible that we failed to
uncover or appropriately address material problems with ValueRx's or DPS's
operations or financial condition, or failed to discover contingent liabilities.
Any of the foregoing could materially adversely affect our results of operations
or financial condition.

FAILURE TO MANAGE AND MAINTAIN INTERNAL GROWTH COULD ADVERSELY AFFECT

OUR BUSINESS

We have experienced rapid internal growth over the past several years. Our
ability to effectively manage and maintain this internal growth will require
that we continue to improve our financial and management information systems as
well as identify and retain key personnel. We can provide no assurance that we
will successfully meet these requirements or that we will have access to
sufficient capital to do so. Our internal growth is also dependent upon our
ability to attract new clients and achieve growth in the membership base of our
existing clients. If we are unable to continue our client and membership growth,
our results of operations and financial position could be materially adversely
affected.

COMPETITION IN THE PBM INDUSTRY COULD REDUCE OUR CLIENT MEMBERSHIP AND OUR
PROFIT MARGINS

Pharmacy benefit management is a very competitive business. Our competitors
include several large and well-established companies which may have greater
financial, marketing and technological resources than we do. One major
competitor in the PBM business,

8
<PAGE> 12

Merck-Medco Managed Care is owned by Merck & Co., a pharmaceutical manufacturer.
Another major competitor, PCS, is owned by Rite-Aid, a large retail pharmacy
chain. Both of these competitors may possess purchasing or other advantages over
us by virtue of their ownership, and could succeed in taking away some of our
clients. Consolidation in the PBM industry may also lead to increased
competition among a smaller number of large PBM companies. We also face
competition from Internet-based providers of pharmaceuticals such as
Drugstore.com and PlanetRx.com. We cannot predict what effect, if any, these
competitors may have on the marketplace or on our business.

Over the last several years intense competition in the marketplace has
caused many PBMs, including us, to reduce the prices charged to clients for core
services and share a larger portion of the formulary fees and related revenues
received from drug manufacturers with clients. Increased price competition could
reduce our profit margins and have a material adverse effect on our results of
operations.

FAILURE TO RETAIN KEY CLIENTS AND NETWORK PHARMACIES COULD ADVERSELY AFFECT
OUR BUSINESS AND LIMIT OUR ACCESS TO RETAIL PHARMACIES

We currently provide PBM services to approximately 8,500 clients, including
several large clients. Our contracts with clients generally do not have terms of
longer than three years and in some cases are terminable by either party on
relatively short notice. Our larger clients generally distribute requests for
proposals in advance of the expiration of their contracts. If several of these
large clients elect not to extend their relationship with us, and we are not
successful in generating sales to replace the lost business, our future business
and operating results could be materially adversely affected. In addition, we
believe the managed care industry is undergoing substantial consolidation, and
some of our managed care clients could be acquired by another party that is not
our client. In this case, our client may not renew its PBM contract with us.

With the completion of our acquisition of DPS, United HealthCare became our
largest client. With approximately 10 million members, United HealthCare
accounts for approximately 22% of our membership base. DPS's contract with
United HealthCare will expire on May 31, 2000, and United HealthCare has
indicated it will be moving to another provider at that time. In our financial
analysis of the DPS acquisition, we assumed United HealthCare would not renew
its contract. However, if we are unable to reduce our costs on a basis
commensurate with our expectations and manage the transition of this large
client to another provider both efficiently and effectively, the termination of
this contract may materially adversely affect our business and results of
operations.

Our largest national provider network consists of more than 52,000 retail
pharmacies, which represent more than 99% of the retail pharmacies in the United
States. However, the top 10 retail pharmacy chains represent approximately 41%
of the 52,000 pharmacies, with pharmacy chains representing even higher
concentrations in selected areas of the United States. Our contracts with retail
pharmacies, which are non-exclusive, are generally terminable by either party on
relatively short notice. If one or more of the top pharmacy chains elects to
terminate its relationship with us, our members' access to retail pharmacies and
our business could be significantly impaired. In addition, Rite-Aid recently
acquired one of our major PBM competitors, and other large pharmacy chains
either own PBMs today or could attempt to acquire a PBM in the future. Ownership
of PBMs by retail pharmacy chains could have material adverse effects on our
relationships with these pharmacy chains and on our business and results of
operations.

9
<PAGE> 13

LOSS OF RELATIONSHIPS WITH PHARMACEUTICAL MANUFACTURERS AND CHANGES IN THE
REGULATION OF DISCOUNTS AND REBATES PROVIDED TO US BY PHARMACEUTICAL
MANUFACTURERS COULD DECREASE OUR PROFITS

We maintain contractual relationships with numerous pharmaceutical
manufacturers which provide us with:

- discounts at the time we purchase the drugs to be dispersed from our mail
pharmacies

- rebates based upon sales of drugs from our mail pharmacies and through
pharmacies in our retail networks

- administrative fees based upon the development and maintenance of
formularies which include the particular manufacturer's products

These fees are all commonly referred to as formulary fees or formulary
management fees.

We also provide various services for, or services which are funded wholly
or partially by, pharmaceutical manufacturers. These services include:

- compliance programs, which involve instruction and counseling of patients
concerning the importance of compliance with the drug treatment regimen
prescribed by their physician

- therapy management programs, which involve education of patients having
specific diseases, such as asthma and diabetes, concerning the management
of their condition

- market research programs in which we provide information to manufacturers
concerning drug utilization patterns

These arrangements are generally terminable by either party on relatively short
notice. If several of these arrangements are terminated or materially altered by
the pharmaceutical manufacturers, our operating results could be materially
adversely affected. In addition, formulary fee programs, as well as some of the
services we provide to the pharmaceutical manufacturers, have been the subject
of debate in federal and state legislatures and various other public forums.
Changes in existing laws or regulations, changes in interpretations of existing
laws or regulations or the adoption of new laws or regulations relating to any
of these programs, may materially adversely affect our business.

Patents covering many brand name drugs that currently have substantial
market share will expire over the next several years, and generic drugs will be
introduced that may substantially reduce the market share of these brand name
drugs. Manufacturers of generic drugs do not generally offer incentive payments
on their drugs to PBMs in the form of discounts, rebates or other formulary
fees. Although we expect new drugs with patent protection to be introduced in
the future, we can provide no assurance these drugs will capture a significant
share of the market such that our incentive payment revenues will not be
reduced.

PENDING AND FUTURE LITIGATION COULD MATERIALLY AFFECT OUR RELATIONSHIPS WITH
PHARMACEUTICAL MANUFACTURERS OR SUBJECT US TO SIGNIFICANT MONETARY DAMAGES

Since 1993, over 100 separate lawsuits have been filed by retail pharmacies
against drug manufacturers, wholesalers and PBMs challenging brand name drug
pricing practices under various state and federal antitrust laws. Some of these
lawsuits were consolidated into a nationwide class action, while others remained
as individual suits. The class action defendants have either settled the claims
against them or have had the claims dismissed. Several of the individual suits
are ongoing. We are not a party to any of these proceedings,

10
<PAGE> 14

and to date we do not believe any of the related settlements have had a material
adverse effect on our business. However, we cannot provide any assurance that
the terms of the settlements will not materially adversely affect us in the
future or that we will not be made a party to any separate lawsuit. In addition,
we cannot predict the outcome or possible ramifications to our business of the
cases in which the plaintiffs are trying their claims separately.

Our PBM operations, including the dispensing of pharmaceutical products by
our mail pharmacies, the services rendered in connection with our formulary
management and informed decision counseling services and the products and
services provided in connection with our infusion therapy programs, including
the associated nursing services, have subjected us and may subject us in the
future to litigation and liability for damages. We believe our insurance
protection is adequate for our present operations, but we cannot provide any
assurance that we will be able to maintain our professional and general
liability insurance coverage in the future or that insurance coverage will be
available on acceptable terms to cover any or all potential product or
professional liability claims. A successful product or professional liability
claim in excess of our insurance coverage could have a material adverse effect
on our business.

CHANGES IN STATE AND FEDERAL REGULATIONS COULD RESTRICT OUR ABILITY TO CONDUCT
OUR BUSINESS

Numerous state and federal laws and regulations affect our business and
operations. These laws and regulations include, but are not necessarily limited
to:

- health care fraud and abuse laws and regulations, which prohibit illegal
referral and other payments

- Employee Retirement Income Security Act of 1974 and related regulations,
which regulate many health care plans

- mail pharmacy laws and regulations

- privacy and confidentiality laws and regulations

- proposed comprehensive state PBM regulatory legislation

- consumer protection laws and regulations

- pharmacy network access laws, including "any willing provider" and "due
process" legislation, that regulate aspects of our pharmacy network
contracts

- legislation imposing benefit plan design restrictions, which limit how
our clients can design their drug benefit plans

- various licensure laws, such as managed care and third party
administrator licensure laws

- drug pricing legislation, including "most favored nation" pricing and
"unitary pricing" legislation

- Medicare prescription drug coverage proposals

- other Medicare and Medicaid reimbursement regulations

- potential regulation of the PBM industry by the U.S. Food and Drug
Administration

We believe we are operating our business in substantial compliance with all
existing legal requirements material to the operation of our business. There
are, however, significant uncertainties regarding the application of many of
these legal requirements to our business, and we cannot provide any assurance
that a regulatory agency charged with enforcement of

11
<PAGE> 15

any of these laws or regulations will not interpret them differently or, if
there is an enforcement action brought against us, that our interpretation would
prevail. In addition, there are numerous proposed health care laws and
regulations at the federal and state levels, many of which could materially
affect our ability to conduct our business or adversely affect our results of
operations. We are unable to predict what additional federal or state
legislation or regulatory initiatives may be enacted in the future relating to
our business or the health care industry in general, or what effect such
legislation or regulations might have on us. We also cannot provide any
assurance that federal or state governments will not impose additional
restrictions or adopt interpretations of existing laws that could have a
material adverse effect on our business or results of operations.

EFFORTS TO REDUCE HEALTH CARE COSTS AND ALTER HEALTH CARE FINANCING PRACTICES
COULD ADVERSELY AFFECT OUR BUSINESS

Efforts are being made in the United States to control health care costs,
including prescription drug costs, in response to, among other things, increases
in prescription drug utilization rates and drug prices. If these efforts are
successful or if prescription drug utilization rates were to decrease
significantly, our business and results of operations could be materially
adversely affected.

We have designed our business to compete within the current structure of
the U.S. health care system. Changing political, economic and regulatory
influences may affect health care financing and reimbursement practices. If the
current health care financing and reimbursement system changes significantly,
our business could be materially adversely affected. Congress is currently
considering proposals to reform the U.S. health care system. These proposals may
increase governmental involvement in health care and PBM services, and otherwise
change the way our clients do business. Health care organizations may react to
these proposals and the uncertainty surrounding them by reducing or delaying
purchases of cost control mechanisms and related services that we provide. We
cannot predict what effect, if any, these proposals may have on our business.
Other legislative or market-driven changes in the health care system that we
cannot anticipate could also materially adversely affect our business.

FAILURE TO SUCCESSFULLY ADDRESS THE YEAR 2000 ISSUE COULD ADVERSELY AFFECT OUR
BUSINESS

Our business relies heavily on computers and other information systems
technology. In 1995, we began addressing the "year 2000" issue, which generally
refers to the inability of computer systems to properly recognize calendar dates
beyond December 31, 1999.

We believe that with appropriate modifications to our existing computer
systems, updates by our vendors and trading partners and conversion to new
software in the ordinary course of our business, the year 2000 issue will not
pose material operational problems for us. However, if the conversions are not
completed in a proper and timely manner by all affected parties, or if our logic
for communicating with noncompliant systems is ineffective, the year 2000 issue
could result in material adverse operational and financial consequences to us.
We cannot provide any assurance that our efforts, or those of our vendors and
trading partners, will be successful in addressing the year 2000 issue. In
addition, while DPS has represented to us that it has implemented a year 2000
plan for upgrading its computer systems and communicated with its vendor/trading
partners regarding these partners' year 2000 compliance, we cannot predict
whether this plan will adequately address all of DPS's year 2000 issues or
whether DPS's vendors/trading partners will adequately address their year 2000
issues. Failure by DPS or its vendors/trading partners to adequately address the
year 2000 issue could have a material adverse effect on our business and results
of operations.

12
<PAGE> 16

LOSS OF KEY MANAGEMENT COULD ADVERSELY AFFECT OUR BUSINESS

Our success is materially dependent upon our key managers and, in
particular, upon the continued services of Barrett A. Toan, our President and
Chief Executive Officer. Our future operations could be materially adversely
affected if the services of Mr. Toan cease to be available. We and Mr. Toan are
parties to an employment agreement which currently extends to March 31, 2002,
and which automatically extends for an additional one year on April 1, 2001, and
on each April 1 thereafter unless either party gives notice of termination at
least 30 days prior to such April 1. As of the date hereof, neither we nor Mr.
Toan has given this notice.

FAILURE TO MEET OUR DEBT OBLIGATIONS COULD ADVERSELY AFFECT OUR RESULTS OF
OPERATIONS AND FINANCIAL CONDITION

In connection with our acquisitions of ValueRx and DPS, we incurred
cumulative indebtedness of approximately $890 million, excluding our senior
subordinated bridge credit facility. This indebtedness is currently funded under
our $1.05 billion credit facility with a bank syndicate led by Credit Suisse
First Boston and Bankers Trust Company. This facility is secured by the capital
stock of each of our existing and subsequently acquired domestic subsidiaries,
excluding Practice Patterns Science, Great Plains Reinsurance, ValueRx of
Michigan, Diversified NY IPA and Diversified Pharmaceutical Services (Puerto
Rico), and 65% of the stock of our foreign subsidiaries. If we are unable to
meet our obligations under this credit facility, these creditors could exercise
their rights as a secured party and take possession of the pledged capital stock
of these subsidiaries. This would materially adversely affect our results of
operations and financial condition.

OUR LEVERAGE AND DEBT SERVICE OBLIGATIONS COULD IMPEDE OUR OPERATIONS AND
FLEXIBILITY

We have substantial leverage, which means that the amount of our
outstanding debt will be large compared to the net book value of our assets, and
we will have substantial repayment obligations and interest expense. As of March
31, 1999, on a pro forma basis as if this offering had been consummated on that
date, we would have had total consolidated debt of approximately $741 million.
We and our subsidiaries may incur additional indebtedness in the future.

Our level of debt and the limitations imposed on us by our debt agreements
could have important consequences including the following:

- we will have to use a substantial portion of our cash flow from
operations for debt service rather than for our operations

- we may not be able to obtain additional debt financing for future working
capital, capital expenditures or other corporate purposes

- some of the debt under our $1.05 billion credit facility may be at a
variable interest rate, making us vulnerable to increases in interest
rates

- we could be less able to take advantage of significant business
opportunities, such as acquisition opportunities, and react to changes in
market or industry conditions

- we could be more vulnerable to general adverse economic and industry
conditions

- we may be disadvantaged compared to competitors with less leverage

Furthermore, our ability to satisfy our obligations, including our debt
service requirements, will be dependent upon our future performance, which will
be subject to numerous factors, including, without limitation, prevailing
economic conditions and financial, business and other factors, many of which are
beyond our control and which affect our business and operations.

13
<PAGE> 17

NEW YORK LIFE INSURANCE COMPANY CAN CONTROL OUR BUSINESS AND LIMIT OUR ABILITY
TO ENTER INTO SELECTED BUSINESS TRANSACTIONS

We have two classes of authorized common stock: Class A and Class B common
stock. Our Class B common stock is entirely owned by NYLIFE HealthCare, an
indirect subsidiary of New York Life Insurance Company. Each share of our Class
A common stock has one vote per share, and each share of our Class B common
stock has ten votes per share. After giving effect to this offering, NYLIFE
HealthCare will have approximately 86.9% of the combined voting power of our
common stock. NYLIFE HealthCare could reduce its Class B common stock ownership
to represent slightly less than 10% of the total outstanding shares of our
common stock and still control a majority of the voting power of our common
stock. Without regard to the votes of our public stockholders, NYLIFE HealthCare
can:

- elect or remove all our directors

- amend our certificate of incorporation, except where the separate
approval of the holders of our Class A common stock is required by law

- accept or reject a merger, sale of assets or other major corporate
transaction

- accept or reject any proposed acquisition of us

- determine the amount and timing of dividends paid to itself and holders
of our Class A common stock

- except in limited circumstances, control our management and operations
and decide all matters submitted for a stockholder vote

FUTURE SALES OR ISSUANCES OF SHARES COULD ADVERSELY AFFECT OUR SHARE PRICE

As of March 1, 1999, in addition to the 4,500,000 shares of our Class A
common stock offered by this prospectus, 2,858,752 shares of our Class A common
stock are issuable upon exercise of outstanding stock options and rights granted
under our stock option plans, our Employee Stock Purchase Plan and our Executive
Deferred Compensation Plan, and 15,020,000 shares of our Class B common stock
are eligible for sale by NYLIFE HealthCare pursuant to Rule 144 under the
Securities Act, subject to the volume and other limitations contained in Rule
144. Our Class B common stock will automatically convert into a like number of
shares of our Class A common stock upon transfer by NYLIFE HealthCare to any
entity other than an affiliate of NYLIFE HealthCare or otherwise at the option
of NYLIFE HealthCare. Under the terms of various strategic alliances, we may
also be obligated to issue up to 5,807,368 additional shares of our Class A
common stock to our strategic partners upon the achievement by them of various
membership and claims targets or the exercise by them of warrants.

Any issuance of additional shares of our common stock, including those
issuable in connection with our existing obligations, will result in a dilution
of the interest of our existing stockholders and could result in a decrease in
the market price of our Class A common stock.

We and some of our directors, officers and stockholders, including NYLIFE
HealthCare, have agreed not to offer, sell, contract to sell, announce an
intention to sell, pledge or otherwise dispose of, directly or indirectly, or,
in our case, file with the SEC a registration statement under the Securities Act
relating to any additional shares of our common stock or securities convertible
into or exchangeable or exercisable for any shares of our common stock, without
the prior written consent of Credit Suisse First Boston Corporation for a period
of 90 days after the date of this prospectus.

14
<PAGE> 18

USE OF PROCEEDS

The net proceeds to us from the sale of the 4.5 million shares of our Class
A common stock offered by this prospectus are estimated to be $299 million, or
$345 million if the underwriters exercise their over-allotment option in full,
at an assumed offering price per share of $70 and after deducting estimated
underwriting discounts and commissions and offering expenses payable by us. The
net proceeds of this offering will be used to repay our $150 million senior
subordinated bridge credit facility and approximately $149 million of the Term B
Loan under our $1.05 billion credit facility. Our $150 million senior
subordinated bridge credit facility and $1.05 billion credit facility were
entered into in connection with our acquisition of DPS and the refinancing of
all of our existing indebtedness. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations -- Liquidity and Capital
Resources." The Term B Loan under our $1.05 billion credit facility matures on
March 31, 2007 and, as of May 1, 1999, has an interest rate of 8.375%. See
"Description of the New Credit Facility." Our $150 million senior subordinated
bridge credit facility matures one year after its closing date unless previously
converted to a term loan, which would mature ten years after its closing date,
and, as of May 1, 1999, has an interest rate of 9.97%.

15
<PAGE> 19

PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY

Our Class A common stock has been traded on The Nasdaq National Market
under the symbol "ESRX" since June 9, 1992. The high and low prices of our Class
A common stock, as reported by The Nasdaq National Market, are set forth below
for the periods indicated. These prices reflect the two-for-one split on October
30, 1998, in the form of a 100% stock dividend to holders of record on October
20, 1998.

<TABLE>
<CAPTION>
HIGH LOW
-------- -------
<S> <C> <C>
1997
First Quarter............................................. $ 19.125 $15.625
Second Quarter............................................ $ 24.500 $16.375
Third Quarter............................................. $ 27.250 $20.750
Fourth Quarter............................................ $ 32.375 $25.313
1998
First Quarter............................................. $ 42.750 $27.000
Second Quarter............................................ $ 45.000 $35.500
Third Quarter............................................. $ 45.250 $31.625
Fourth Quarter............................................ $ 69.000 $33.875
1999
First Quarter............................................. $105.500 $59.125
Second Quarter (through May 21, 1999)..................... $ 91.000 $60.125
</TABLE>

Our Class B common stock has no established public trading market, but
these shares will automatically convert, on a share for share basis, to our
Class A common stock upon transfer by NYLIFE HealthCare to any entity other than
an affiliate of NYLIFE HealthCare or otherwise at the option of NYLIFE
HealthCare.

Our board of directors has not declared any cash dividends since our
initial public offering in 1992. Our board of directors does not currently
intend to declare any cash dividends in the foreseeable future. The terms of our
$1.05 billion credit facility restrict our ability to declare or pay cash
dividends.

16
<PAGE> 20

CAPITALIZATION

The following table sets forth our capitalization as of March 31, 1999, on
a pro forma basis to give effect to our acquisition of DPS and the related
financings, and on a pro forma as adjusted basis to reflect the sale of
4,500,000 shares of our Class A common stock offered by this prospectus and the
receipt of the estimated $299,068,000 in net proceeds from this offering,
assuming an offering price of $70 per share and after deducting estimated
underwriting discounts and commissions and other offering expenses payable by
us.

<TABLE>
<CAPTION>
UNAUDITED
ACQUISITION
PRO FORMA
UNAUDITED AS ADJUSTED
ACQUISITION FOR THIS
ACTUAL PRO FORMA OFFERING
---------- ------------- -------------
(IN THOUSANDS, EXCEPT SHARE AND NET DEBT TO
NET CAPITALIZATION DATA)
<S> <C> <C> <C>
Cash................................................... $115,838 $ 67,757 $ 67,757
======== ========== ==========
Short-term debt:
Current maturities of long-term debt................. $ 54,000 $ -- $ --
-------- ---------- ----------
Long-term debt:
Credit facility:
Revolving debt..................................... -- 140,000 140,000
Term debt.......................................... 306,000 750,000 600,932
Senior subordinated bridge credit facility........... -- 150,000 --
-------- ---------- ----------
Total long-term debt............................... 306,000 1,040,000 740,932
-------- ---------- ----------
Total debt......................................... $360,000 $1,040,000 $ 740,932(1)
======== ========== ==========
Stockholders' equity:
Preferred stock, $.01 per share, 5,000,000 shares
authorized, and no shares issued and outstanding... $ -- $ -- $ --
Class A common stock, $.01 par value, 75,000,000
shares authorized, 18,707,000 shares issued and
23,207,000 shares issued as adjusted(2)............ 187 187 232
Class B common stock, $.01 par value, 22,000,000
shares authorized, 15,020,000 shares issued........ 150 150 150
Additional paid-in-capital........................... 114,391 114,391 413,414
Accumulated other comprehensive income............... (62) (62) (62)
Retained earnings.................................... 159,865 157,915 156,350
-------- ---------- ----------
274,531 272,581 570,084
Class A common stock in treasury at cost, 475,000
shares............................................. (6,989) (6,989) (6,989)
-------- ---------- ----------
Total stockholders' equity........................... $267,542 $ 265,592 $ 563,095
======== ========== ==========
Net capitalization..................................... $511,704 $1,237,835 $1,236,270
======== ========== ==========
Net debt to net capitalization(3)...................... 47.7% 78.5% 54.5%
======== ========== ==========
</TABLE>

- -------------------------

(1) The net proceeds of our senior notes offering would be used to repay a
portion of the Term B Loan under our $1.05 billion credit facility. If we
complete our senior notes offering, we do not expect that our pro forma as
adjusted total debt will be materially affected.

(2) Does not include as of March 1, 1999:

- stock options and similar equity rights granted to employees and
independent directors to purchase 2,858,752 shares of our Class A common
stock, of which 866,700 were exercisable

- reserved shares of our Class A common stock for issuance in connection
with strategic alliances; see "Business -- Acquisitions and Strategic
Alliances"

- reserved shares of our Class A common stock for our Employee Stock
Purchase Plan and our Executive Deferred Compensation Plan; see Note 10 in
our 1998 consolidated financial statements

(3) Net debt reflects total debt less cash.

17
<PAGE> 21

SELECTED FINANCIAL AND OPERATING DATA

The following table sets forth our selected financial and operating data
for the five years ended December 31, 1998 and three months ended March 31, 1998
and 1999. The financial data, excluding the selected data, for the fiscal years
ended December 31, 1996, 1997 and 1998 have been derived from our consolidated
financial statements included in this prospectus which have been audited by
PricewaterhouseCoopers LLP, independent accountants. The financial data,
excluding the selected data, for the fiscal years ended December 31, 1994 and
1995 have been derived from our consolidated financial statements not included
in this prospectus which have been audited by PricewaterhouseCoopers LLP. The
financial data, excluding the selected data, for the three months ended March
31, 1998 and 1999 have been derived from our unaudited consolidated financial
statements included in this prospectus.

The data set forth below should be read in conjunction with the report of
PricewaterhouseCoopers LLP, our consolidated financial statements and related
notes and "Management's Discussion and Analysis of Financial Condition and
Results of Operations" included elsewhere in this prospectus.

<TABLE>
<CAPTION>
(UNAUDITED)
---------------------
THREE MONTHS ENDED
YEAR ENDED DECEMBER 31, MARCH 31,
------------------------------------------------------------ ---------------------
1994 1995 1996 1997 1998(2) 1998 1999
-------- ---------- ---------- ---------- ---------- -------- ----------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C> <C>
STATEMENT OF OPERATIONS DATA:
Net revenues......................... $384,504 $ 544,460 $ 773,615 $1,230,634 $2,824,872 $371,362 $ 899,087

Costs and expenses:
Cost of revenues................... 338,151 478,283 684,882 1,119,167 2,584,997 338,492 823,647
Selling, general and
administrative................... 25,882 37,300 49,103 62,617 148,990 18,826 46,440
Corporate restructuring............ -- -- -- -- 1,651 -- --
-------- ---------- ---------- ---------- ---------- -------- ----------
364,033 515,583 733,985 1,181,784 2,735,638 357,318 870,087
-------- ---------- ---------- ---------- ---------- -------- ----------
Operating income..................... 20,471 28,877 39,630 48,850 89,234 14,044 29,000
Interest income (expense), net....... 305 757 3,450 5,856 (12,994) 2,124 (4,829)
-------- ---------- ---------- ---------- ---------- -------- ----------
Income before income taxes........... 20,776 29,634 43,080 54,706 76,240 16,168 24,171
Provision for income taxes........... 8,053 11,307 16,932 21,277 33,566 6,290 10,628
-------- ---------- ---------- ---------- ---------- -------- ----------
Net income........................... $ 12,723 $ 18,327 $ 26,148 $ 33,429 $ 42,674 $ 9,878 $ 13,543
======== ========== ========== ========== ========== ======== ==========
Earnings per share(1):
Basic.............................. $ 0.43 $ 0.62 $ 0.81 $ 1.02 $ 1.29 $ 0.30 $ 0.41
Diluted............................ $ 0.42 $ 0.60 $ 0.80 $ 1.01 $ 1.27 $ 0.29 $ 0.40
Weighted average shares
outstanding(1):
Basic.............................. 29,588 29,560 32,160 32,713 33,105 33,053 33,211
Diluted............................ 30,293 30,545 32,700 33,122 33,698 33,579 34,154
BALANCE SHEET DATA:
Cash................................. $ 5,742 $ 11,506 $ 25,211 $ 64,155 $ 122,589 $ 84,556 $ 115,838
Working capital...................... 38,082 58,653 128,259 166,062 117,611 175,232 140,221
Total assets......................... 108,922 164,088 300,425 402,508 1,095,461 414,744 1,096,950
Short-term debt.................... -- -- -- -- 54,000 -- 54,000
Long-term debt, less current
maturities....................... -- -- -- -- 306,000 -- 306,000
Total debt........................... -- -- -- -- 360,000 -- 360,000
Stockholders' equity................. 52,485 77,379 164,090 203,701 249,694 214,930 267,542
SELECTED DATA:
Pharmacy benefit covered lives....... 6,000 8,000 10,000 13,000 23,000 12,000 23,000
Drug spending(3)..................... $716,000 $1,172,000 $1,636,000 $2,486,000 $4,495,000 $678,000 $1,450,000
Pharmacy network claims processed.... 26,323 42,871 57,838 73,164 113,177 19,028 36,028
Mail pharmacy prescriptions filled... 1,594 2,129 2,770 3,899 7,426 1,069 2,279
EBITDA(4)............................ $ 23,795 $ 33,258 $ 46,337 $ 59,320 $ 115,667 $ 16,440 $ 37,487
Cash flows provided by (used in)
operating activities............... $ 9,741 $ 11,500 $ 29,863 $ 52,503 $ 126,574 $ 24,222 $ (3,808)
Cash flows used in investing
activities......................... $ (6,348) $ (8,047) $ (64,808) $ (16,567) $ (426,052) $ (4,510) $ (5,677)
Cash flows provided by financing
activities......................... $ 314 $ 2,311 $ 48,652 $ 3,033 $ 357,959 $ 683 $ 2,722
</TABLE>

18
<PAGE> 22

- -------------------------
(1) Earnings per share and weighted average shares outstanding have been
restated to reflect the two-for-one stock split effective October 30, 1998.

(2) Includes our acquisition of ValueRx effective April 1, 1998. Also includes a
corporate restructuring charge in 1998 of $1,651, $1,002 after tax, relating
to our managed vision business. Excluding this restructuring charge, our
basic and diluted earnings per share would have been $1.32 and $1.30,
respectively.

(3) Drug spending is a measure of the gross aggregate dollar value of drug
expenditures of all programs managed by us. The difference between drug
spending and revenue reported by us is the combined effect of excluding from
reported revenues:

- the drug ingredient cost for those clients that have established their own
pharmacy networks

- the expenditures for drugs for companies on formulary-only programs
managed by us

- the co-pay portion of drug expenditures that are the responsibility of
members of health plans serviced by us

Therefore, drug spending provides a common basis to compare the drug
expenditures managed by a company given differences in revenue recognition.

(4) EBITDA is earnings before interest, taxes, depreciation and amortization, or
operating income plus depreciation and amortization. EBITDA is presented
because it is a widely accepted indicator of a company's ability to incur
and service indebtedness. EBITDA, however, should not be considered as an
alternative to net income as a measure of operating performance or an
alternative to cash flow as a measure of liquidity. In addition, our
definition of EBITDA may not be comparable to that reported by other
companies.

19
<PAGE> 23

UNAUDITED CONSOLIDATED CONDENSED PRO FORMA FINANCIAL DATA

The following unaudited consolidated condensed pro forma statement of
operations combines the historical statement of operations of us, Value Health,
Inc., Managed Prescription Network, Inc., together comprising the business known
as ValueRx, and DPS for the year ended December 31, 1998, for the three months
ended March 31, 1998, and the three months ended March 31, 1999. On April 1,
1998, we consummated the acquisition of ValueRx. Therefore, the financial
information of ValueRx is included in our consolidated statement of operations
subsequent to April 1, 1998. The unaudited consolidated condensed pro forma
statement of operations has been prepared to reflect the acquisitions of ValueRx
and DPS and the related financings, including this offering and the use of the
net proceeds from this offering, as if these events had occurred on January 1,
1998. Any cost savings we may realize in connection with the integration of DPS
are not reflected in the pro forma presentation.

The following unaudited consolidated condensed pro forma balance sheet
combines the historical consolidated balance sheet of us and DPS as of March 31,
1999. The unaudited consolidated condensed pro forma balance sheet has been
prepared to reflect the acquisition of DPS and the related financings, including
this offering and the use of the net proceeds from this offering, as if these
events had occurred on March 31, 1999.

The detailed assumptions used to prepare the unaudited consolidated
condensed pro forma financial data are contained in the notes to the unaudited
consolidated condensed pro forma financial data. The unaudited consolidated
condensed pro forma financial data reflects the use of the purchase method of
accounting for the acquisitions of ValueRx and DPS. Under the purchase method of
accounting, the basis of accounting for the acquired assets and liabilities is
based upon their fair values at the date of acquisition.

The pro forma adjustments represent our preliminary determination based
upon available information and assumptions which we consider reasonable under
the circumstances. The unaudited consolidated condensed pro forma data is not
necessarily indicative of our future results of operations or the results of
operations as they might have been had the acquisitions and the related
financings, including this offering and the use of the net proceeds from this
offering, been effective on the first day of the period presented. The unaudited
consolidated condensed pro forma financial data should be read in conjunction
with our separate historical consolidated financial statements and notes
included in this prospectus, the separate historical consolidated financial
statements and notes of ValueRx included in our Current Report on Form 8-K/A
dated June 12, 1998, the separate unaudited combined condensed financial
statements and notes for ValueRx for the three months ended March 31, 1998
included in this prospectus, the separate historical financial statements and
notes of DPS included in this prospectus and the separate unaudited consolidated
financial statements and notes for DPS for the three months ended March 31, 1999
included in this prospectus.

When reading the historical consolidated financial statements of us and
DPS, a notable difference exists with respect to the revenue recognition for
each of the companies. A substantial portion of our net revenues include
administrative fees, dispensing fees and the drug ingredient costs, as most
clients use one of our pharmacy networks. Where we only administer the contracts
between our clients and our clients' retail pharmacy networks, we record as net
revenues only the administrative fees we receive from our activities. DPS's net
revenues include its administrative fee from the activity of processing the
claim irrespective of a member utilizing a retail pharmacy included in one of
DPS's networks or its clients' network. The fundamental difference in the
revenue recognition is that DPS does not include the associated drug ingredient
costs in its net revenues as it does not have any liability to reimburse the
retail pharmacy included in its network unless DPS receives payment from its
client.

20
<PAGE> 24

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED CONDENSED PRO FORMA STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31, 1999
--------------------------------------------------------------------------------
DPS OFFERING
EXPRESS PRO FORMA ACQUISITION PRO FORMA PRO FORMA
SCRIPTS DPS ADJUSTMENTS PRO FORMA ADJUSTMENTS CONSOLIDATED
-------- ------- ----------- ----------- ----------- ------------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C>

Net revenues................................... $899,087 $65,366(2) $ -- $964,453 $ -- $964,453
Cost and expenses:
Cost of revenues............................. 823,647(1) -- -- 823,647 -- 823,647(1)
Selling, general and administrative.......... 46,440(1) 57,409 (10,401)(3) 90,578 -- 90,578(1)
(1,890)(4)
(980)(5)
-------- ------- --------- -------- ------ --------
870,087 57,409 (13,271) 914,225 -- 914,225
-------- ------- --------- -------- ------ --------
Operating income............................... 29,000 7,957 13,271 50,228 -- 50,228
Other income (expense)......................... -- 433 359(6) 792 -- 792
Interest income................................ 1,393 -- (541)(7) 852 -- 852
Interest expense............................... (6,222) -- (17,134)(8) (23,356) 6,959(10) (16,397)(13)
-------- ------- --------- -------- ------ --------
Income (loss) before income taxes.............. 24,171 8,390 (4,045) 28,516 6,959 35,475
Provision (benefit) for income taxes........... 10,628 3,096 (1,618)(9) 12,106 2,784(11) 14,890
-------- ------- --------- -------- ------ --------
Net income..................................... $ 13,543 $ 5,294 $ (2,427) $ 16,410 $4,175 $ 20,585
======== ======= ========= ======== ====== ========
Basic earnings per share....................... $ 0.41 $ 0.55
Diluted earnings per share..................... $ 0.40 $ 0.53
======== ========
Weighted average number of common shares
outstanding during the period-Basic EPS...... 33,211 4,500(12) 37,711
======== ====== ========
Weighted average number of common shares
outstanding during the period-Diluted EPS.... 34,154 4,500(12) 38,654
======== ====== ========
</TABLE>

- -------------------------

(1) Cost of revenues and selling, general and administrative expense include
$2,265 and $6,222 of depreciation and amortization, respectively, for us
during the first quarter of 1999. The pro forma consolidated cost of
revenues and selling, general and administrative expense include $2,265 and
$16,232 of depreciation and amortization, respectively.

(2) Net revenues for DPS include revenues from SmithKline Beecham. Subsequent
to our acquisition of DPS, revenues are anticipated to be consistent with
historical revenues as DPS's existing contract with SmithKline Beecham
remains in place.

(3) Adjustment reflects the elimination of management fees paid to United
HealthCare of $10,401 which under the DPS purchase agreement is to be
reimbursed to us by SmithKline Beecham.

(4) Adjustment also reflects the net decrease in the first quarter of 1999 of
depreciation and amortization expense to $260 from $2,150 recorded by DPS
resulting from the allocation of the purchase price to the assets acquired
at their fair market value and to conform estimated and useful lives.
Furniture, equipment and internal use software are being depreciated by us
using the straight-line method over estimated useful lives of 5 to 8 years.

(5) Adjustment reflects the net decrease in the first quarter of 1999 of
amortization expense for goodwill and other intangible assets. DPS's
goodwill and other intangible assets amortization expense of $10,730 has
been reversed, and our goodwill and other intangible assets, consisting of
customer contracts, amortization of

21
<PAGE> 25

$9,750 has been included. Goodwill is being amortized using the
straight-line method over the estimated useful life of 30 years. We have
preliminarily assigned an estimated fair value to other intangible assets
and are amortizing them using the straight-line method over the estimated
useful lives of 1 to 20 years. We anticipate spending an estimated $10
million to $20 million in non-recurring costs during the first twelve months
subsequent to our acquisition of DPS relating to the integration of DPS's
operations. These non-recurring costs have not been reflected in the
unaudited consolidated condensed pro forma statement of operations.

(6) Adjustment reflects the elimination of DPS's $359 equity loss in its joint
venture. SmithKline Beecham retained the equity interest in the joint
venture.

(7) Adjustment reflects the decrease in interest income resulting from expending
$48,081 of cash to consummate the acquisition of DPS. The adjustment was
calculated using a current interest rate of 4.5% earned by us on our cash
balances.

(8) Adjustment reflects the following:

- the elimination of $5,508 in actual interest expense, exclusive of the
impact of our hedge on variable rate interest, incurred during the first
quarter of 1999 on $360,000 of debt outstanding under our $440,000
credit facility, which has been replaced with the $1,050,000 credit
facility

- the addition of $21,677 in interest expense from borrowings of $890,000
under the $1,050,000 credit facility and $150,000 under the senior
subordinated bridge credit facility, assuming interest rates on the
$1,050,000 credit facility of 7.67% for the revolving facility and the
Term A facility and 8.42% for the Term B facility, and a rate of 9.97%
on the senior subordinated bridge credit facility, based on the actual
rates incurred by us at consummation of the $1,050,000 credit facility
and $150,000 senior subordinated bridge facility

- the addition of $921 in deferred financing fees amortization and $44 in
annual administrative fees; these deferred financing fees are being
amortized using the straight-line method over 6 to 8 years, which
represents the maturity of the term loans under the $1,050,000 credit
facility

(9) Adjustment reflects the tax effect of the pro forma adjustments at the
combined federal and state statutory rate of 40%.

(10) Adjustment reflects the elimination of the interest expense impact from the
retirement of the $150,000 senior subordinated bridge credit facility, at
an interest rate in effect at consummation of 9.97%, and the retirement of
$149,068 of the term loan borrowings under the $1,050,000 credit facility,
at the actual interest rate at consummation of 8.42%, using the net
proceeds of this offering, and the elimination of the deferred financing
fees amortization expense associated with the retirement of term loan
borrowings under our $1,050,000 credit facility.

(11) Adjustment reflects the tax effect of the interest expense adjustment at
the combined federal and state statutory 40% tax rate.

(12) Adjustment reflects the addition for the full period of the 4,500 shares of
Class A common stock offered by this prospectus assuming an offering price
of $70 per share.

(13) The net proceeds of our senior notes offering would be used to repay a
portion of the Term B Loan under our $1.05 billion credit facility. If we
complete our senior notes offering, we do not expect that our pro forma
interest expense will be materially affected.

22
<PAGE> 26

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED CONDENSED PRO FORMA STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31, 1998
--------------------------------------------------------------------------------
VALUERX DPS
EXPRESS PRO FORMA VALUERX PRO FORMA
SCRIPTS, INC. VALUERX(1) ADJUSTMENTS PRO FORMA DPS ADJUSTMENTS
------------- ---------- ----------- --------- ------- -----------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C>
Net revenues............... $371,362 $409,928 $ -- $781,290 $47,650(7) $ --
Cost and expenses:
Cost of revenues.......... 338,492(2) 375,295 -- 713,787 -- --
Selling, general and
administrative.......... 18,826(2) 27,628 (3,606)(3) 42,848 55,045 (7,675)(8)
(1,028)(9)
(8,689)(10)
-------- -------- ------- -------- ------- --------
357,318 402,923 (3,606) 756,635 55,045 (17,392)
-------- -------- ------- -------- ------- --------
Operating income........... 14,044 7,005 3,606 24,655 (7,395) 17,392
Other income (expense)..... -- -- -- -- 714 431(11)
Interest income............ 2,138 56 (1,261)(4) 933 -- (541)(12)
Interest expense........... (14) -- (7,007)(5) (7,021) -- (15,635)(13)
-------- -------- ------- -------- ------- --------
Income (loss) before income
taxes..................... 16,168 7,061 (4,662) 18,567 (6,681) 1,647
Provision (benefit) for
income taxes.............. 6,290 3,665 (1,865)(6) 8,090 (2,338) 659(14)
-------- -------- ------- -------- ------- --------
Net income................. $ 9,878 $ 3,396 $(2,797) $ 10,477 $(4,343) $ 988
======== ======== ======= ======== ======= ========
Basic earnings per share... $ 0.30
========
Diluted earnings per
share..................... $ 0.29
========
Weighted average number of
common shares outstanding
during the period -- Basic
EPS....................... 33,053
========
Weighted average number of
common shares outstanding
during the
period -- Diluted EPS..... 33,579
========

<CAPTION>
THREE MONTHS ENDED MARCH 31, 1998
--------------------------------------
VALUERX OFFERING
AND DPS PRO FORMA PRO FORMA
PRO FORMA ADJUSTMENTS CONSOLIDATED
--------- ----------- ------------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C>
Net revenues............... $828,940 $ -- $828,940
Cost and expenses:
Cost of revenues.......... 713,787 -- 713,787(2)
Selling, general and
administrative.......... 80,501 -- 80,501(2)
-------- ------ --------
794,288 -- 794,288
-------- ------ --------
Operating income........... 34,652 -- 34,652
Other income (expense)..... 1,145 -- 1,145
Interest income............ 392 -- 392
Interest expense........... (22,656) 6,959(15) (15,697)(18)
-------- ------ --------
Income (loss) before income
taxes..................... 13,533 6,959 20,492
Provision (benefit) for
income taxes.............. 6,411 2,784(16) 9,195
-------- ------ --------
Net income................. $ 7,122 $4,175 $ 11,297
======== ====== ========
Basic earnings per share... $ 0.30
========
Diluted earnings per
share..................... $ 0.30
========
Weighted average number of
common shares outstanding
during the period -- Basic
EPS....................... 4,500(17) 37,553
====== ========
Weighted average number of
common shares outstanding
during the
period -- Diluted EPS..... 4,500(17) 38,079
====== ========
</TABLE>

- -------------------------

(1) These historical amounts represent the unaudited statement of operations of
ValueRx from January 1, 1998 through March 31, 1998.

(2) Cost of revenues and selling, general and administrative expense include
$1,413 and $983 of depreciation and amortization, respectively, for us
during the first quarter of 1998. The pro forma consolidated cost of
revenues and selling, general and administrative expense include $1,413 and
$16,198 of depreciation and amortization, respectively.

(3) Adjustment reflects the net decrease in depreciation and amortization of
property and equipment and intangible assets, including goodwill resulting
from our allocation of the ValueRx purchase price and conforming estimated
useful lives. ValueRx depreciation and amortization expense of $8,811 has
been eliminated and $5,205 has been added based on the fair value of
property and equipment, goodwill, and other intangible assets. The fair
value of property and equipment ($33,756) is being depreciated using the
straight-line method over 3 to 20 years. Goodwill ($289,863) and other
intangible assets, consisting of

23
<PAGE> 27

non-compete agreements ($9,130) and customer contracts ($48,523), are being
amortized using the straight-line method over 30 years and 2 to 20 years,
respectively.

(4) Adjustment reflects the decrease in interest income resulting from our
expending $100,908 of our short-term investments and cash equivalents to
consummate the acquisition of ValueRx. The adjustment was calculated using
the average interest rate (5.0%) earned by us on our investments during the
quarter prior to the ValueRx acquisition.

(5) Adjustment records the additional net interest expense and the amortization
of the deferred financing fees during the first quarter of 1998 associated
with the $440,000 credit facility utilized for the acquisition of ValueRx.
The additional interest expense was determined assuming an average
borrowing rate of 7.13% on the $360,000 borrowed under the $440,000 credit
facility incurred to consummate the acquisition.

(6) Adjustment reflects the tax effect of the pro forma adjustments at the
combined federal and state statutory rate of 40%.

(7) Net revenues for DPS include revenues from SmithKline Beecham. Subsequent
to our acquisition of DPS, revenues are anticipated to be consistent with
historical revenues as DPS's existing contract with SmithKline Beecham
remains in place.

(8) Adjustment reflects the elimination of management fees paid to United
HealthCare of $7,675, which under the DPS purchase agreement is to be
reimbursed to us by SmithKline Beecham.

(9) Adjustment also reflects the net decrease in the 1998 depreciation and
amortization expense to $260 from $1,288 recorded by DPS resulting from the
allocation of the purchase price to the assets acquired at their fair
market value and to conform estimated and useful lives. Furniture,
equipment and internal use software are being depreciated by us using the
straight-line method over estimated useful lives of 5 to 8 years.

(10) Adjustment reflects the net decrease in the 1998 amortization expense for
goodwill and other intangible assets. DPS's goodwill and other intangible
assets amortization expense of $18,439 has been reversed, and our goodwill
and other intangible assets, consisting of customer contracts, amortization
of $9,750 has been included. Goodwill is being amortized using the
straight-line method over the estimated useful life of 30 years. We have
preliminarily assigned an estimated fair value to other intangible assets
and are amortizing them using the straight-line method over the estimated
useful lives of 1 to 20 years. We anticipate spending an estimated $10
million to $20 million in non-recurring costs during the first twelve
months subsequent to our acquisition of DPS relating to the integration of
DPS's operations. These non-recurring costs have not been reflected in the
unaudited consolidated condensed pro forma statement of operations.

(11) Adjustment reflects the elimination of DPS's $431 equity loss in its joint
venture. SmithKline Beecham retained the equity interest in the joint
venture.

(12) Adjustment reflects the decrease in interest income for the first quarter
of 1998 resulting from expending $48,081 of cash to consummate the
acquisition of DPS. The adjustment was calculated using a current interest
rate of 4.5% earned by us on our cash balances.

(13) Adjustment reflects the following:

- the elimination of $7,007 in first quarter of 1998 interest expense
relating to the ValueRx acquisition, exclusive of the impact of our
hedge on variable rate interest, incurred during the first quarter of
1998 on $360,000 of debt outstanding under our $440,000 credit facility,
which has been replaced with the $1,050,000 credit facility

24
<PAGE> 28

Term B facility, and a rate of 9.97% on the senior subordinated bridge
credit facility, based on the actual rates incurred by us at
consummation of the $1,050,000 credit facility and $150,000 senior
subordinated bridge credit facility

(14) Adjustment reflects the tax effect of the pro forma adjustments at the
combined federal and state statutory rate of 40%.

(15) Adjustment reflects the elimination of the interest expense impact from the
retirement of the $150,000 senior subordinated bridge credit facility, at
an interest rate in effect at consummation of 9.97%, and the retirement of
$149,068 of the term loan borrowings under the $1,050,000 credit facility,
at the actual interest rate at consummation of 8.42%, using the net
proceeds of this offering, and the elimination of the deferred financing
fees amortization expense associated with the retirement of term loan
borrowings under our $1,050,000 credit facility.

(16) Adjustment reflects the tax effect of the interest expense adjustment at
the combined federal and state statutory 40% tax rate.

(17) Adjustment reflects the addition for the full period of the 4,500 shares of
Class A common stock offered by this prospectus assuming an offering price
of $70 per share.

(18) The net proceeds of our senior notes offering would be used to repay a
portion of the Term B Loan under our $1.05 billion credit facility. If we
complete our senior notes offering, we do not expect that our pro forma
interest expense will be materially affected.

25
<PAGE> 29

UNAUDITED CONSOLIDATED CONDENSED PRO FORMA STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31, 1998
----------------------------------------------------------------------
VALUERX
EXPRESS PRO FORMA VALUERX
SCRIPTS, INC. VALUERX(1) ADJUSTMENTS PRO FORMA DPS
------------- ---------- ----------- ---------- -----------
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
<S> <C> <C> <C> <C> <C>
Net revenues........... $2,824,872 $409,928 $ -- $3,234,800 $ 214,849(7)
Cost and expenses:
Cost of revenues...... 2,584,997(2) 375,295 -- 2,960,292 548
Selling, general and
administrative...... 148,990(2) 27,628 (3,606)(3) 173,012 234,477
Corporate
restructuring....... 1,651 -- -- 1,651 --
Write down of
assets.............. -- -- -- -- 1,092,184
---------- -------- ------- ---------- -----------
2,735,638 402,923 (3,606) 3,134,955 1,327,209
---------- -------- ------- ---------- -----------
Operating income
(loss)................ 89,234 7,005 3,606 99,845 (1,112,360)
Other income (net)..... -- -- -- -- 1,308
Interest income........ 7,236 56 (1,261)(4) 6,031 --
Interest expense....... (20,230) -- (7,007)(5) (27,237) --
---------- -------- ------- ---------- -----------
Income (loss) before
income taxes.......... 76,240 7,061 (4,662) 78,639 (1,111,052)
Provision (benefit) for
income taxes.......... 33,566 3,665 (1,865)(6) 35,366 (388,825)
---------- -------- ------- ---------- -----------
Net income (loss)...... $ 42,674 $ 3,396 $(2,797) $ 43,273 $ (722,227)
========== ======== ======= ========== ===========
Basic earnings per
share................. $ 1.29
==========
Diluted earnings per
share................. $ 1.27
==========
Weighted average number
of common shares
outstanding during the
period -- Basic....... 33,105
==========
Weighted average number
of common shares
outstanding during the
period -- Diluted..... 33,698
==========

<CAPTION>
YEAR ENDED DECEMBER 31, 1998
----------------------------------------------------------
DPS VALUERX OFFERING
PRO FORMA AND DPS PRO FORMA PRO FORMA
ADJUSTMENTS PRO FORMA ADJUSTMENTS CONSOLIDATED
----------- ----------- ----------- ------------
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
<S> <C> <C> <C> <C>
Net revenues........... $ -- $ 3,449,649 $ -- $3,449,649
Cost and expenses:
Cost of revenues...... -- 2,960,840 -- 2,960,840(2)
Selling, general and
administrative...... (33,837)(8) 337,141 -- 337,141(2)
(1,688)(9)
(34,823)(10)
Corporate
restructuring....... -- 1,651 -- 1,651
Write down of
assets.............. -- 1,092,184 -- 1,092,184
-------- ----------- ------- ----------
(70,348) 4,391,816 -- 4,391,816
-------- ----------- ------- ----------
Operating income
(loss)................ 70,348 (942,167) -- (942,167)
Other income (net)..... 1,924(11) 3,232 -- 3,232
Interest income........ (2,164)(12) 3,867 -- 3,867
Interest expense....... (65,282)(13) (92,519) 28,960(15) (63,561)(19)
-------- ----------- ------- ----------
Income (loss) before
income taxes.......... 4,826 (1,027,587) 28,960 (998,627)
Provision (benefit) for
income taxes.......... 1,930(14) (351,529) 11,584(16) (339,945)
-------- ----------- ------- ----------
Net income (loss)...... $ 2,896 $ (676,058) $17,376 $ (658,682)(17)
======== =========== ======= ==========
Basic earnings per
share................. $ (17.52)
==========
Diluted earnings per
share................. $ (17.24)
==========
Weighted average number
of common shares
outstanding during the
period -- Basic....... 4,500(18) 37,605
======= ==========
Weighted average number
of common shares
outstanding during the
period -- Diluted..... 4,500(18) 38,198
======= ==========
</TABLE>

- -------------------------

(1) These historical amounts represent the unaudited statement of operations of
ValueRx from January 1, 1998 through March 31, 1998.

(2) Cost of revenues and selling, general and administrative expense include
$7,559 and $18,874 of depreciation and amortization, respectively, for us
in 1998. The pro forma consolidated cost of revenues and selling, general
and administrative expense include $7,559 and $67,709 of depreciation and
amortization, respectively.

26
<PAGE> 30

straight-line method over 3 to 20 years. Goodwill ($289,863) and other
intangible assets, consisting of non-compete agreements ($9,130) and
customer contracts ($48,523), are being amortized using the straight-line
method over 30 years and 2 to 20 years, respectively.

(6) Adjustment reflects the tax effect of the pro forma adjustments at the
combined federal and state statutory rate of 40%.

(8) Adjustment reflects the elimination of management fees paid to United
HealthCare of $33,837, which under the DPS purchase agreement is to be
reimbursed to us by SmithKline Beecham.

(9) Adjustment also reflects the net decrease in the 1998 depreciation and
amortization expense to $4,695 from $6,383 recorded by DPS resulting from
the allocation of the purchase price to the assets acquired at their fair
market value and to conform estimated and useful lives. Furniture,
equipment and internal use software are being depreciated by us using the
straight-line method over estimated useful lives of 5 to 8 years.

(10) Adjustment reflects the net decrease in the 1998 amortization expense for
goodwill and other intangible assets. DPS's goodwill and other intangible
assets amortization expense of $73,758 has been reversed, and our goodwill
and other intangible assets, consisting of customer contracts, amortization
of $38,935 has been included. Goodwill is being amortized using the
straight-line method over the estimated useful life of 30 years. We have
preliminarily assigned an estimated fair value to other intangible assets
and are amortizing them using the straight-line method over the estimated
useful lives of 1 to 20 years. We anticipate spending an estimated $10
million to $20 million in non-recurring costs during the first twelve
months subsequent to our acquisition of DPS relating to the integration of
DPS's operations. These non-recurring costs have not been reflected in the
unaudited consolidated condensed pro forma statement of operations.

(11) Adjustment reflects the elimination of DPS's $1,924 equity loss in its
joint venture. SmithKline Beecham retained the equity interest in the joint
venture.

(12) Adjustment reflects the decrease in interest income resulting from
expending $48,081 of cash to consummate the acquisition of DPS. The
adjustment was calculated using a current interest rate of 4.5% earned by
us on our cash balances.

(13) Adjustment reflects the following:

- the elimination of $26,413 in actual interest expense, exclusive of the
impact of our hedge on variable rate interest, incurred during fiscal
1998 on $360,000 of debt outstanding under our $440,000 credit facility,
which has been replaced with the $1,050,000 credit facility

- the addition of $87,832 in interest expense from borrowings of $890,000
under the $1,050,000 credit facility and $150,000 under the senior
subordinated bridge credit facility, assuming interest rates on the
$1,050,000 credit facility of 7.67% for the revolving facility and the
Term A facility and 8.42% for the

27
<PAGE> 31

Term B facility, and an average rate of 10.72% on the senior
subordinated bridge credit facility, based on the actual rates incurred
by us at consummation of the $1,050,000 credit facility and $150,000
senior subordinated bridge facility. The interest rate on the senior
subordinated bridge facility loan increases 0.5% every quarter starting
at 9.97% and increasing to 11.47%

- the addition of $3,688 in deferred financing fees amortization and $175
in annual administrative fees; these deferred financing fees are being
amortized using the straight-line method over 6 to 8 years, which
represents the maturity of the term loans under the $1,050,000 credit
facility

(14) Adjustment reflects the tax effect of the pro forma adjustments at the
combined federal and state statutory rate of 40%.

(15) Adjustment reflects the elimination of the interest expense impact from the
retirement of the $150,000 senior subordinated bridge credit facility, at
the interest rates in effect at consummation starting at 9.97% and
increasing to 11.47%, and the retirement of $149,068 of the term loan
borrowings under the $1,050,000 credit facility, at the actual interest
rate at consummation of 8.42%, using the net proceeds of this offering, and
the elimination of the deferred financing fees amortization expense
associated with the retirement of term loan borrowings under our $1,050,000
credit facility.

(16) Adjustment reflects the tax effect of the interest expense adjustment at
the combined federal and state statutory 40% tax rate.

(17) The write-down of assets on DPS's books of $1,092,184 relates to the
impairment of goodwill. If the acquisition of DPS had occurred on January
1, 1998, goodwill on DPS's books would have been eliminated. Therefore, the
impairment charge for goodwill would not have existed. Net income excluding
this impairment charge would have been $51,238, or $1.36 per basic share
and $1.34 per diluted share.

(18) Adjustment reflects the addition for a full year of the 4,500 shares of
Class A common stock offered by this prospectus assuming an offering price
of $70 per share.

(19) The net proceeds of our senior notes offering would be used to repay a
portion of the Term B Loan under our $1.05 billion credit facility. If we
complete our senior notes offering, we do not expect that our pro forma
interest expense will be materially affected.

28
<PAGE> 32

UNAUDITED CONSOLIDATED CONDENSED PRO FORMA BALANCE SHEET

<TABLE>
<CAPTION>
MARCH 31, 1999
------------------------------------------------------------------------------------------
ACQUISITION OFFERING
EXPRESS SCRIPTS, PRO FORMA ACQUISITION PRO FORMA PRO FORMA
INC. DPS ADJUSTMENTS PRO FORMA ADJUSTMENTS CONSOLIDATED
---------------- ---------- ----------- ----------- ----------- ------------
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C>
ASSETS:
Current assets:
Cash............................ $ 115,838 $ -- $ (48,081)(1) $ 67,757 $ -- $ 67,757
Accounts receivable............. 446,453 120,884 -- 567,337 -- 567,337
Intercompany receivable......... -- -- -- -- -- --
Other current assets............ 100,836 2,904 (1,880)(2) 101,860 -- 101,860
---------- ---------- ----------- ---------- --------- ----------
Total current assets.......... 663,127 123,788 (49,961) 736,954 -- 736,954
Property and equipment, net....... 73,346 27,894 (19,602)(3) 81,638 -- 81,638
Goodwill, net..................... 268,081 542,184 185,148(4) 995,413 -- 995,413
Deferred income taxes............. -- 427,278 (427,278)(2) -- -- --
Other assets...................... 92,396 279,583 (131,040)(5) 240,939 (2,609)(9) 238,330
---------- ---------- ----------- ---------- --------- ----------
Total assets.................. $1,096,950 $1,400,727 (442,733) $2,054,944 $ (2,609) $2,052,335
========== ========== =========== ========== ========= ==========
LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
Current maturities of long-term
debt.......................... $ 54,000 $ -- $ (54,000)(6) $ -- $ -- $ --
Claims and rebates payable...... 331,525 232,666 -- 564,191 -- 564,191
Accounts payable................ 65,715 -- -- 65,715 -- 65,715
Accrued expenses................ 71,666 35,609 11,619(7) 118,894 (1,044)(10) 117,850
---------- ---------- ----------- ---------- --------- ----------
Total current liabilities..... 522,906 268,275 (42,381) 748,800 (1,044) 747,756
Revolving debt.................... -- -- 140,000(6) 140,000 -- 140,000
Term debt......................... 306,000 -- 444,000(6) 750,000 (149,068)(11) 600,932
Senior subordinated bridge credit
facility........................ -- -- 150,000(6) 150,000 (150,000)(11) --
Total long-term debt.......... 306,000 -- 734,000 1,040,000 (299,068) 740,932
Other long-term liabilities....... 502 50 -- 552 -- 552
---------- ---------- ----------- ---------- --------- ----------
Total liabilities............. 829,408 268,325 691,569 1,789,302 (300,112) 1,489,240
Stockholders' equity.............. 267,542 1,132,402 (1,134,352)(8) 265,592 297,503(11) 563,095
---------- ---------- ----------- ---------- --------- ----------
Total liabilities and
stockholders' equity........ $1,096,950 $1,400,727 $ (442,733) $2,054,944 $ (2,609) $2,052,335
========== ========== =========== ========== ========= ==========
</TABLE>

- -------------------------

(1) Adjustment reflects the use of $48,081 of our cash balances to fund the
purchase of DPS.

(2) Adjustment reflects the elimination of the historical deferred tax assets
of DPS. As part of its acquisition, we will file an Internal Revenue Code
sec. 338(h)(10) election. Accordingly, at March 31, 1999, the tax basis
balance sheet and the book basis balance sheet are estimated to be the
same, and therefore no deferred taxes are recognized with respect to DPS.

(3) Adjustment reflects the fair value assigned to DPS property and equipment.

(4) Adjustment reflects the excess of the purchase price of DPS over fair
market value of the identified assets acquired. The purchase price of $700
million, plus $25 million in transaction costs, plus the assumption and
incurrence of liabilities totalling $284,325 was allocated in the following
manner:

29
<PAGE> 33

<TABLE>
<S> <C>
Current assets.............................................. $121,908
Property and equipment...................................... 8,292
Deferred financing fees..................................... 19,483
Customer contracts.......................................... 132,310
Goodwill.................................................... 727,332
Liabilities................................................. 284,325
</TABLE>

(5) Adjustment reflects the following:

- elimination of the unamortized deferred financing fees in the amount of
3,250 related to the extinguishment of our $440,000 credit facility

- elimination of other intangible assets of DPS in the amount of $279,583

These eliminations were offset by $19,483 paid in deferred financing fees
related to the $1,050,000 credit facility used to finance the DPS
acquisition and the preliminary allocation of fair value to customer
contracts in the amount of $132,310. We are in the process of establishing
fair values for all identifiable assets and will adjust the fair value
allocated to customer contracts accordingly when complete.

(6) Adjustment reflects borrowings of $890,000 under our $1,050,000 credit
facility and $150,000 under the senior subordinated bridge credit facility
to finance the acquisition of DPS and which refinanced our existing
outstanding debt of $360,000 under our $440,000 credit facility. The
$1,050,000 credit facility consists of a $300,000 revolving credit
facility, of which $140,000 has been borrowed, and a $750,000 term
facility.

(7) Adjustment reflects the reduction of taxes payable by $1,300 for the
write-off of deferred financing fees, and the payment of accrued interest
of $5,063 associated with the repayment of the $440,000 credit facility.
These amounts were offset by accruals of $17,982 for transaction costs and
other liabilities associated with the purchase of DPS.

(8) Adjustment reflects the elimination of the DPS pre-acquisition equity
balances and the write-off of our unamortized deferred financing fees of
$1,950, net of tax, from our $440,000 credit facility as an extraordinary
item. After the write-off of the unamortized deferred financing fees, net
income after extraordinary items for the three months ended March 31, 1999
would have been $18,635, or $0.49 per basic share and $0.48 per diluted
share.

(9) Adjustment reflects the elimination of our unamortized deferred financing
fees related to the extinguishment of $149,068 borrowed under the
$1,050,000 credit facility and the $150,000 senior subordinated bridge
credit facility.

(10) Adjustment reflects the reduction in taxes payable as a result of the
write-off of deferred financing fees related to the extinguishment of
$149,068 borrowed under our $1,050,000 credit facility.

(11) Adjustment reflects the net proceeds received from our sale of 4,500 shares
of Class A common stock offered pursuant to this prospectus at an assumed
offering price of $70 per share. The proceeds from this offering will be
used to repay the $150,000 senior subordinated bridge credit facility and
$149,068 of the term loans under the $1,050,000 credit facility. The
proceeds are offset by the write-off of $1,565, net of tax, of the deferred
financing fees from the $1,050,000 credit facility as an extraordinary
item. After the write-off of $1,565 and $1,950, see (7) above, in
unamortized deferred financing fees, net income after extraordinary items
for the three months ended March 31, 1999 would have been $17,070, or $0.45
per basic share and $0.44 per diluted share.

30
<PAGE> 34

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF OPERATIONS

OVERVIEW

During the first quarter of 1999 and fiscal year 1998, we continued to
execute our growth strategy of generating sales to new clients, expanding the
services provided to existing clients, developing new products and services for
sale to existing clients and pharmaceutical manufacturers and selectively
pursuing strategic acquisitions and alliances. On April 1, 1998, we consummated
our first major acquisition by acquiring "ValueRx", the prescription benefit
management ("PBM") operations of Columbia/HCA Healthcare Corporation
("Columbia"), for approximately $460 million in cash, which includes transaction
costs and executive management severance costs of approximately $6.7 million and
$8.3 million, respectively. Consequently, our operating results include those of
ValueRx from April 1, 1998. The net assets acquired have been recorded at their
estimated fair value, resulting in $278,113,000 of goodwill that is being
amortized over 30 years. On April 1, 1999, we acquired Diversified
Pharmaceutical Services, Inc. and Diversified Pharmaceutical Services (Puerto
Rico) Inc. (collectively "DPS") from SmithKline Beecham Corporation ("SmithKline
Beecham") and SmithKline Beecham InterCredit BV for approximately $700 million
in cash, such amount being subject to adjustment based upon the amount of DPS's
working capital at closing. Both acquisitions will be accounted for under the
purchase method of accounting.

The acquisition of ValueRx substantially increased our membership to
approximately 23 million lives as of March 31, 1999 from approximately 12
million lives as of March 31, 1998. Our membership approximately doubled again
on April 1, 1999, increasing to approximately 47 million due to the acquisition
of DPS. We now have one of the largest managed care membership bases of any PBM.
Although membership counts are based on our eligibility data, they necessarily
involve some estimates, extrapolations and approximations. For example, some
plan designs allow for family coverage under one identification number, and we
make assumptions about the average number of persons per family in calculating
our total membership. Because these assumptions may vary between PBMs,
membership counts may not be comparable between us and our competitors. However,
we believe our membership count provides a reasonable estimation of the
population we serve, and can be used as one measure of our growth. The
acquisitions also increased the scale of our business, expanded our client base,
increased our penetration of PBM markets and expanded our product and service
offerings.

We primarily derive our revenues from the sale of PBM services in the
United States and Canada. Our PBM net revenues generally include administrative
fees, dispensing fees and ingredient costs of pharmaceuticals dispensed from
retail pharmacies included in one of our networks or from one of our mail
pharmacies. We then record the associated costs in cost of revenues. Net
revenues from these activities in 1996, 1997 and 1998 represented 97.3%, 97.7%,
and 98.3%, respectively, of total net revenues. Where we only administer the
contracts between our clients and the clients' retail pharmacy networks, we
record as net revenues only the administrative fees we receive from our
activities. We also derive PBM net revenues from the sale of informed decision
counseling services through our Express Health LineSM division and the sale of
medical information management services, which include provider profiling,
formulary management support services and outcomes assessments, through our
Practice Patterns Science subsidiary. In 1996, 1997 and 1998, net revenue from
these services, including where administrative fees only are recognized,

31
<PAGE> 35

represented 2.7%, 2.3% and 1.7%, respectively, of net revenues reported in our
consolidated statement of operations. Non-PBM net revenues are derived from:

- the sale of pharmaceuticals for and the provision of infusion therapy
services through our IVTx subsidiary

- administrative fees received for members using our vision program through
our alliance with Cole Managed Vision, a subsidiary of Cole National
Corporation

- administrative fees received from drug manufacturers for the dispensing
or distribution of pharmaceuticals through our Specialty Distribution
division

RESULTS OF OPERATIONS

FIRST QUARTER 1999 COMPARED TO 1998

NET REVENUES.

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31,
----------------------------------
% INCREASE
----------
1999
1998 1999 OVER 1998
-------- -------- ----------
(IN THOUSANDS)
<S> <C> <C> <C>
PBM....................................................... $358,924 $884,435 146.4%
Non-PBM................................................... 12,438 14,652 17.8%
-------- -------- -----
Net revenues.............................................. $371,362 $899,087 142.1%
======== ======== =====
</TABLE>

Total net revenues for the first quarter of 1999 increased $527,725,000, or
142.1%, compared to the first quarter of 1998. The increase is primarily due to
the acquisition of ValueRx and also due to our continuing ability to attract new
clients as well as additional members from existing clients.

The majority of the increase in net revenues was derived from our PBM
services. Network pharmacy claims processed increased 89.3% in the first quarter
of 1999 over 1998 and the average net revenue per network pharmacy claim
increased 36.0% in the first quarter of 1999 over 1998. The significant increase
in network pharmacy claims processed of 89.3% and average net revenue per
network pharmacy claim of 36.0% in the first quarter of 1999 over 1998 caused
net revenues for our network pharmacy claims services to increase $393,914,000,
or 157.4%. The increase in average net revenue per network pharmacy claim is due
to two factors:

- a larger number of clients using retail pharmacy networks established by
us, rather than retail pharmacy networks established by our clients,
which results in us recording dispensing fees and ingredient costs in net
revenues and cost of revenues, respectively

- higher drug ingredient costs resulting from price increases for existing
drugs, new drugs introduced into the marketplace and changes in
therapeutic mix and dosage. These increases were partially offset by
lower pricing offered by us in response to continued competitive
pressures

The number of clients using retail pharmacy networks established by us
increased significantly beginning in the second quarter of 1998 due to the
acquisition of ValueRx, as substantially all ValueRx clients used retail
pharmacy networks established by ValueRx. As a result of this shift, gross
margin percentages are reduced but the dollar amount of the gross profit is not
significantly affected.

32
<PAGE> 36

Mail pharmacy claims processed increased 113.2% in the first quarter of
1999 over 1998 and the average net revenue per mail pharmacy claim increased
3.8% in the first quarter of 1999 over 1998. The significant increase in mail
pharmacy claims processed, primarily due to the ValueRx acquisition, resulted in
net revenues for our mail pharmacy services increasing $127,480,000, or 121.2%.

Net revenues from our non-PBM services increased 17.8% in the first quarter
of 1999 over 1998. The increase was primarily due to a change in product mix
sold, which resulted in higher drug ingredient costs. This increase was
partially offset by the reduction in net revenues from our managed vision
business.

COST AND EXPENSES.

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31,
------------------------------------------------
% OF NET % INCREASE
REVENUES ----------
------------ 1999
1998 1999 1998 1999 OVER 1998
-------- -------- ---- ---- ----------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C>
PBM(1)....................................... $329,017 $812,093 91.7% 91.8% 146.8%
Non-PBM(2)................................... 9,475 11,554 76.2% 78.9% 21.9%
-------- -------- ---- ---- -----
Cost of revenues............................... 338,492 823,647 91.1% 91.6% 143.3%
Selling, general and administrative............ 17,843 40,218 4.8% 4.5% 125.4%
Depreciation and amortization(3)............... 983 6,222 0.3% 0.7% 533.0%
-------- -------- ---- ---- -----
Total cost and expenses........................ $357,318 $870,087 96.2% 96.8% 143.5%
======== ======== ==== ==== =====
</TABLE>

- ---------------

(1) % of net revenues data is percentage against PBM net revenues.

(2) % of net revenues data is percentage against non-PBM net revenues.

(3) Represents depreciation and amortization expense included in selling,
general and administrative expenses on our statement of operations. Cost of
revenues includes depreciation and amortization expense on property and
equipment.

Our cost of revenues for PBM services as a percentage of PBM net revenues
slightly increased during the first quarter of 1999 over 1998. Cost of revenues
for our pharmacy network claims and mail pharmacy claims increased 158.8% and
120.5%, respectively. The decrease in gross margin percentage for the first
quarter of 1999 over 1998 is primarily due to the shift toward pharmacy networks
established by us, as opposed to those established by our clients. The pharmacy
network shift continued due to the acquisition of ValueRx, as the ValueRx
clients primarily used retail pharmacy networks established by ValueRx. This
decrease was partially offset by operating efficiencies achieved in our mail
pharmacies during the first quarter of 1999 and revenues generated from
integrated PBM services, such as medical and drug data analysis, that provide
higher gross margins.

Cost of revenues for non-PBM services increased as a percentage of non-PBM
net revenues from the first quarter of 1998 primarily due to the continued
change in the product mix sold resulting in additional costs of approximately
$720,000. This change was offset by our development of new business that
generated higher gross margins of approximately $120,000 and the reduction of
overhead costs, as a percentage of non-PBM net revenues, due to the change in
product mix sold.

Selling, general and administrative expenses, excluding depreciation and
amortization, increased $22,375,000, or 125.4%, for the first quarter of 1999
compared to 1998. The increase is primarily due to our acquisition of ValueRx,
costs incurred during the

33
<PAGE> 37

integration of ValueRx and costs required to expand the operational and
administrative support functions to enhance management of the pharmacy benefit.
As a percentage of net revenues, selling, general and administrative expenses,
excluding depreciation and amortization, for the first quarter of 1999 decreased
to 4.5% from 4.8% in 1998. The decrease in the percentage of net revenues is
primarily attributed to our recording of higher net revenues due to the shift
towards pharmacy networks established by us, as opposed to those established by
our clients, as discussed in "-- Net Revenues."

As part of our overall plan to achieve operating economies, we are
integrating ValueRx into our historical business. To date, we have substantially
met our integration goals by combining existing contracts and contracting
procedures related to both suppliers and providers, integrating financial
reporting systems, reducing the number of ValueRx computer systems,
consolidating financial operations, consolidating organizational structure and
employee benefits and implementing a new sales and marketing program for
enhanced PBM services. Except for some new systems development costs, we are
expensing integration costs as incurred. During the first quarter of 1999, we
capitalized $1,080,678 in new systems development costs and we expensed
$1,587,000 in incremental integration costs.

Depreciation and amortization substantially increased during the first
quarter of 1999 over 1998 due to the acquisition of ValueRx. During the first
quarter of 1999, we recorded amortization expense for goodwill and other
intangible assets of $3,860,000. The remaining increase during the first quarter
of 1999 is primarily due to the inclusion of depreciation and amortization
expense associated with the property and equipment acquired with ValueRx and due
to expansion of our operations and enhancement of our information systems to
better manage the pharmacy benefit.

INTEREST INCOME (EXPENSE), NET.

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31,
-------------------------------------------
% INCREASE
% OF NET (DECREASE)
REVENUES ----------
----------- 1999 OVER
1998 1999 1998 1999 1998
------ ------- ---- ---- ----------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C>
Interest expense........................ $ (14) $(6,222) NM (0.7)% NM
Interest income......................... 2,138 1,393 0.6% 0.2% (34.8)%
------ ------- ---- ---- -----
Interest income (expense), net.......... $2,124 $(4,829) 0.6% (0.5)% 327.4%
====== ======= ==== ==== =====
</TABLE>

NM = not meaningful.

The significant increase in interest expense is due to our financing of the
ValueRx acquisition with $360 million in borrowings; see "Liquidity and Capital
Resources." Interest income decreased during the first quarter of 1999 over 1998
due to our investment of cash balances and short-term investments at higher
interest rates in 1998 than those received in 1999.

34
<PAGE> 38

PROVISION FOR INCOME TAXES.

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31,
----------------------------------------------
% INCREASE EFFECTIVE TAX
---------- RATE
1999 --------------
1998 1999 OVER 1998 1998 1999
------ ------- ---------- ----- -----
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C>
Provision for income taxes.............. $6,290 $10,628 69.0% 38.9% 44.0%
</TABLE>

Our effective tax rate increased in the first quarter of 1999 over 1998 due
to the non-deductible goodwill and customer contracts amortization expense
resulting from the ValueRx acquisition. We expect that our effective tax rate
will gradually decline toward the statutory rate as our operating growth
continues.

NET INCOME AND EARNINGS PER SHARE.

<TABLE>
<CAPTION>
THREE MONTHS ENDED MARCH 31,
--------------------------------------------
% OF NET % INCREASE
REVENUES ----------
----------- 1999
1998 1999 1998 1999 OVER 1998
------- ------- ---- ---- ----------
(IN THOUSANDS,
EXCEPT
PER SHARE DATA)
<S> <C> <C> <C> <C> <C>
Net income.................................. $ 9,878 $13,543 2.7% 1.5% 37.1%
Basic earnings per share.................... $ 0.30 $ 0.41 36.7%
Diluted earnings per share.................. $ 0.29 $ 0.40 37.9%
Weighted average shares
outstanding -- Basic...................... 33,053 33,211
Weighted average shares
outstanding -- Diluted.................... 33,579 34,154
</TABLE>

Our net income increased $3,665,000, or 37.1%, in the first quarter of 1999
over 1998. On October 12, 1998, we announced a two-for-one stock split of our
Class A and Class B common stock for stockholders of record on October 20, 1998,
effective October 30, 1998. The split was effected in the form of a dividend by
issuance of one additional share of Class A common stock for each share of Class
A common stock outstanding and one additional share of Class B common stock for
each share of Class B common stock outstanding. The earnings per share and the
weighted average number of shares outstanding for basic and diluted earnings per
share have been adjusted for the stock split.

FISCAL YEAR 1998 COMPARED TO 1997 AND FISCAL YEAR 1997 COMPARED TO 1996

NET REVENUES.

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
----------------------------------------------------------
% INCREASE
---------------------
1997 1998
1996 1997 1998 OVER 1996 OVER 1997
-------- ---------- ---------- --------- ---------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C>
PBM................................ $743,077 $1,191,173 $2,765,111 60.3% 132.1%
Non-PBM............................ 30,538 39,461 59,761 29.2% 51.4%
-------- ---------- ---------- ---- -----
Net revenues....................... $773,615 $1,230,634 $2,824,872 59.1% 129.5%
======== ========== ========== ==== =====
</TABLE>

35
<PAGE> 39

We experienced significant growth in our net revenues during 1998 over 1997
primarily due to the acquisition of ValueRx and, to a lesser extent, our
continuing ability to attract new clients as well as additional members from
existing clients. Net revenues for the network pharmacy claims services
increased $1,175,659,000 or 141.7% in 1998 over 1997, and increased $311,195,000
or 60.0% in 1997 over 1996. These increases are the result of growth in the
number of network pharmacy claims processed of 54.7% in 1998 over 1997 and of
26.5% in 1997 over 1996, and an increase in the average net revenue per network
pharmacy claim of 56.3% in 1998 over 1997 and an increase of 26.6% in 1997 over
1996. The increase in average net revenue per network pharmacy claim for both
periods is primarily due to the following factors:

- a larger number of clients using retail pharmacy networks established by
us rather than retail pharmacy networks established by our clients, which
results in our recording dispensing fees and ingredient costs in net
revenues and cost of revenues, respectively

- higher drug ingredient costs resulting from price increases for existing
drugs, new drugs introduced into the marketplace and changes in
therapeutic mix and dosage; these increases were partially offset by
lower pricing offered by us in response to continued competitive
pressures

The number of clients using retail pharmacy networks established by us
increased significantly beginning in the second quarter of 1998 due to the
acquisition of ValueRx, as substantially all ValueRx clients used the retail
pharmacy networks established by ValueRx. As a result of this shift, gross
margin percentages are reduced but the dollar amount of the gross profit is not
significantly affected.

Net revenues for mail pharmacy services increased $385,149,000 or 109.6% in
1998 over 1997, and $129,273,000 or 58.2% in 1997 over 1996. These increases are
the result of the growth in mail pharmacy claims processed of 90.5% in 1998 over
1997 and 40.8% in 1997 over 1996, and an increase in the average net revenue per
mail pharmacy claim of 10.0% in 1998 over 1997 and 12.4% in 1997 over 1996. The
increase in the average net revenue per mail pharmacy claim for both periods is
primarily due to the following factors:

- the termination of inventory replacement programs maintained for two
large clients during 1997

- higher drug ingredient costs

These increases were partially offset by lower pricing offered by us in response
to continued competitive pressures.

Under the inventory replacement programs offered in 1996 and the first four
months of 1997, the client provided drug inventory on consignment to fill mail
service prescriptions for members of the client's plan, and we included only our
dispensing fee as net revenue. For 1998 and most of 1997, all mail pharmacy
clients utilized our standard program in which we purchase and take title to the
inventory used to fill the prescriptions and, therefore, we include the
ingredient costs as well as the dispensing fees in net revenues. This change had
the effect of increasing both net revenues and cost of revenues during 1998 and
1997 compared to 1997 and 1996, respectively, but it had no significant effect
on our reported gross margin during 1998 and 1997 from the conversion to the
standard program. In addition, our inventory levels increased substantially
during 1997 over 1996 as a result of the termination of the inventory
replacement program.

36
<PAGE> 40

Net revenues for our non-PBM services increased 51.4% in 1998 over 1997 and
29.2% in 1997 over 1996. The increases are primarily attributable to the
continued growth in the number of our members and/or clients who receive these
services, higher drug ingredient costs and our ability to develop new products
and services.

COST AND EXPENSES.

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
-------------------------------------------------------------------------------
% INCREASE
% OF NET REVENUES ---------------------
------------------ 1997 1998
1996 1997 1998 1996 1997 1998 OVER 1996 OVER 1997
-------- ---------- ---------- ---- ---- ---- --------- ---------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
PBM(1).................... $661,946 $1,088,225 $2,540,360 89.1% 91.4% 91.9% 64.4% 133.4%
Non-PBM(2)................ 22,936 30,942 44,637 75.1% 78.4% 74.7% 34.9% 44.3%
-------- ---------- ---------- ---- ---- ---- ---- -----
Cost of revenues(3)......... 684,882 1,119,167 2,584,997 88.5% 90.9% 91.5% 63.4% 131.0%
Selling, general and
administrative............ 46,267 57,257 130,116 6.0% 4.7% 4.6% 23.8% 127.2%
Depreciation and
amortization(3)........... 2,836 5,360 18,874 0.4% 0.4% 0.7% 89.0% 252.1%
Corporate restructuring..... -- -- 1,651 0.0% 0.0% 0.0% NM NM
-------- ---------- ---------- ---- ---- ---- ---- -----
Total cost and expenses..... $733,985 $1,181,784 $2,735,638 94.9% 96.0% 96.8% 61.0% 131.5%
======== ========== ========== ==== ==== ==== ==== =====
</TABLE>

- -------------------------

(1) % of net revenues data is percentage against PBM net revenues.

(2) % of net revenues data is percentage against non-PBM net revenues.

NM = not meaningful.

Our cost of revenues for PBM services as a percentage of PBM net revenues
continued to increase in 1998 and 1997 over 1997 and 1996, respectively. Cost of
revenues for our pharmacy network claims and mail pharmacy claims increased
145.5% and 106.7% during 1998, and 65.7% and 60.2% during 1997, respectively.
The PBM gross margin as a percentage of PBM net revenues declined 0.5% during
1998 over 1997 and 2.3% during 1997 over 1996. The decrease in gross margin
percentage in 1997 is due to the shift toward pharmacy networks established by
us, as opposed to those established by our clients, higher drug ingredient costs
and the termination of the inventory replacement programs, as discussed in
"-- Net revenues." The decrease in gross margin percentage in 1998 is primarily
due to the shift towards pharmacy networks established by us. The pharmacy
network shift continued due to the acquisition of ValueRx, as the ValueRx
clients primarily used retail pharmacy networks established by ValueRx. This
decrease was partially offset by operating efficiencies achieved in our mail
pharmacies during 1998 and revenues generated from integrated PBM services, such
as medical and drug data analysis, that provide higher gross margins.

Cost of revenues for non-PBM services decreased as a percentage of non-PBM
net revenues from 1997 primarily due to our development of new business that
generated higher gross margins of $11,039,000. These higher gross margins were
partially offset by increasing costs of $2,320,000 associated with continued
expansion of our operations and continued change of approximately $3,040,000 in
the product mix sold in 1998 compared to 1997. Cost of revenues for non-PBM
services increased as a percentage of non-PBM net

37
<PAGE> 41

revenues in 1997 over 1996 primarily due to increasing costs associated with
continued expansion of our operations.

Selling, general and administrative expenses increased $72,859,000 or
127.2% in 1998 over 1997, and $10,990,000 or 23.8% in 1997 over 1996. The
increase during 1998 was the result of our acquisition of ValueRx, costs
incurred during the integration of ValueRx and costs required to expand the
operational and administrative support functions to enhance management of the
pharmacy benefit. The increase during 1997 was primarily due to the expansion of
the operational and administrative support functions to enhance management of
the pharmacy benefit. As a percentage of net revenues, selling, general and
administrative expenses for 1998 decreased slightly to 4.6% from 4.7% in 1997.
In 1997, selling, general and administrative expenses, as a percentage of net
revenues, decreased 1.3% from 6.0% in 1996. Selling, general and administrative
expenses, as a percentage of net revenues, in both periods were affected by our
recording of higher net revenues due to the shift towards pharmacy networks
established by us, as opposed to those established by our clients, and the
termination of the inventory replacement programs, as discussed in "-- Net
revenues."

As part of our overall plan to achieve operating economies, we have been
integrating ValueRx into our historical business. During 1998, we substantially
met our integration goals by combining existing contracts and contracting
procedures related to both suppliers and providers, integrating financial
reporting systems, reducing the ValueRx computer systems from five to three,
consolidating financial operations, consolidating organizational structure and
employee benefits and implementing a new sales and marketing program for
enhanced PBM services. We expect to reduce the ValueRx computer systems to one
by October 1999. Except for some new systems development costs, we are expensing
integration costs as incurred. As of December 31, 1998, we have capitalized
$5,209,000 in new systems development costs and we have expensed $8,331,000 in
incremental integration costs.

Depreciation and amortization substantially increased during 1998 over 1997
due to the acquisition of ValueRx. During 1998, we recorded amortization expense
for goodwill and other intangible assets of $12,183,000. The remaining increases
in 1998 and 1997 are primarily due to our expansion of our operations and
enhancement of our information systems to better manage the pharmacy benefit.

On June 17, 1998, we announced that we had reached an agreement with Cole
pursuant to which Cole will provide vision care services for our clients and
their members. The agreement enables us to focus on our PBM business while still
offering vision care services to our members by transferring functions performed
by our subsidiary Express Scripts Vision Corporation to Cole, effective
September 1, 1998. In conjunction with the agreement, we also announced plans to
close the operations of our wholly owned subsidiary PhyNet, a vision program
management service organization that is part of our non-PBM services segment. As
a result, we recorded a one-time restructuring charge of $1,651,000 in 1998
comprised of asset write-downs to their net realizable value, less cost of
disposal, of $1,235,000 and expected employee transition cash payments of
$416,000 for 61 employees. During 1998, we incurred cash payments of $184,000
for employee transition and non-cash adjustments of $704,000 for the write-down
of assets. We anticipate completing the remainder of the restructuring
transactions by the end of the third quarter of 1999.

38
<PAGE> 42

INTEREST INCOME (EXPENSE), NET.

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
------------------------------------------------------------------------
% INCREASE
% OF NET REVENUES ---------------------
------------------- 1997 1998
1996 1997 1998 1996 1997 1998 OVER 1996 OVER 1997
------ ------ -------- ---- ---- ----- --------- ---------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Interest expense....... $ (59) $ (225) $(20,230) NM NM (0.7)% NM NM
Interest income........ 3,509 6,081 7,236 0.5% 0.5% 0.2% 73.3% 19.0%
------ ------ -------- -- -- ----- ---- ------
Interest income
(expense), net....... $3,450 $5,856 $(12,994) 0.5% 0.5% (0.5)% 69.7% NM
====== ====== ======== == == ===== ==== ======
</TABLE>

- -------------------------

NM = not meaningful.

During 1998, we recorded significant interest expense resulting from the
financing of the ValueRx acquisition with $360 million in borrowings; see
"-- Liquidity and Capital Resources". Interest income increased $1,155,000 or
19.0% in 1998 over 1997, and $2,572,000 or 73.3% in 1997 over 1996. The
increases in 1998 and 1997 are due to our investment of larger cash balances. In
addition, in 1997 the larger cash balances were invested at higher interest
rates than those in 1996.

PROVISION FOR INCOME TAXES.

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
-------------------------------------------------------------------------------
% INCREASE
---------------------- EFFECTIVE TAX RATE
1997 1998 --------------------
1996 1997 1998 OVER 1996 OVER 1997 1996 1997 1998
------- ------- ------- --------- --------- ---- ---- ----
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Provision for income
taxes................... $16,932 $21,277 $33,566 25.7% 57.8% 39.3% 38.9% 44.0%
</TABLE>

Our effective tax rate increased in 1998 over 1997 due to the
non-deductible goodwill and customer contract amortization expense resulting
from the ValueRx acquisition. We expect that our effective tax rate will
gradually decline toward the statutory rate as our operating growth continues.

NET INCOME AND EARNINGS PER SHARE.

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
------------------------------------------------------------------------
% INCREASE
% OF NET REVENUES ---------------------
------------------ 1997 1998
1996 1997 1998 1996 1997 1998 OVER 1996 OVER 1997
------- ------- ------- ---- ---- ---- --------- ---------
(IN THOUSANDS, EXCEPT PER
SHARE DATA)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Net income.................... $26,148 $33,429 $42,674 3.4% 2.7% 1.5% 27.8% 27.7%
Basic earnings per share...... $0.81 $1.02 $1.29 25.9% 26.5%
Diluted earnings per share.... $0.80 $1.01 $1.27 26.3% 25.7%
Weighted average shares
outstanding -- Basic........ 32,160 32,713 33,105
Weighted average shares
outstanding -- Diluted...... 32,700 33,122 33,698
</TABLE>

Our net income increased $9,245,000 or 27.7% in 1998 over 1997, and
$7,281,000 or 27.8% in 1997 over 1996. Excluding the after-tax one-time
corporate restructuring charge

39
<PAGE> 43

for the managed vision business of $1,002,000, basic earnings per share and
diluted earnings per share for 1998 would have been $1.32 and $1.30,
respectively.

On October 12, 1998, we announced a two-for-one stock split of our Class A
and Class B common stock for stockholders of record on October 20, 1998,
effective October 30, 1998. The split was effected in the form of a dividend by
issuance of one additional share of Class A common stock for each share of Class
A common stock outstanding and one additional share of Class B common stock for
each share of Class B common stock outstanding. The earnings per share and the
weighted average number of shares outstanding for basic and diluted earnings per
share for each period have been adjusted for the stock split.

LIQUIDITY AND CAPITAL RESOURCES

<TABLE>
<CAPTION>
% INCREASE (DECREASE)
---------------------------------
THREE
MONTHS
YEAR ENDED ENDED
THREE MONTHS DECEMBER 31, MARCH 31,
YEAR ENDED DECEMBER 31, ENDED MARCH 31, --------------------- ---------
---------------------------- ----------------- 1997 1998 1999
1996 1997 1998 1998 1999 OVER 1996 OVER 1997 OVER 1998
------- ------- -------- ------- ------- --------- --------- ---------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Net cash provided by
(used in)
operations............ $29,863 $52,503 $126,574 $24,222 $(3,809) 75.8% 141.1% (115.7)%
</TABLE>

During the first quarter of 1999, we used $3,809,000 in net cash for our
operations, primarily due to the payment of selected accrued liabilities from
December 31, 1998. The increase in operating cash flow generated by us in 1998
is primarily due to the increase in net income and our continued focus on
improving working capital management. The increase in operating cash flow
generated in 1997 is primarily due to the increase in net income and
commencement of our working capital management focus. The operating cash flow
generated in 1996 is primarily due to the increase in net income. Management
expects to fund our future debt service, integration costs, year 2000 costs,
internet business development costs and other normal operating cash needs
primarily with operating cash flow or, to the extent necessary, with working
capital borrowings under our $1.05 billion credit facility.

Our capital expenditures in the first quarter of 1999 increased $2,501,000,
or 78.7%, over the first quarter of 1998 primarily due to our effort to invest
in information technology to enhance the services provided to our clients. Our
capital expenditures in 1998 increased $10,836,000 or 83.2% over 1997 primarily
due to our concerted effort to invest in information technology to enhance the
services provided to our clients. In addition, we invested in equipment to
improve efficiency at our mail pharmacy facilities and to manage the growth
encountered at these facilities. In 1997, capital expenditures increased
$3,537,000 or 37.3% primarily due to the investments required for the management
of our growth. Management expects to continue investing in technology that will
provide efficiencies in operations, manage growth and enhance the services
provided to our clients. Management expects to fund future anticipated capital
expenditures primarily with operating cash flow or, to the extent necessary,
with working capital borrowings under the $1.05 billion credit facility.

On April 1, 1999, we entered into a $1.05 billion credit facility with a
bank syndicate led by Credit Suisse First Boston and Bankers Trust Company
consisting of $750 million in term loans, including $285 million of Term A loans
and $465 million of Term B loans,

40
<PAGE> 44

and a $300 million revolving credit facility. The agreement became effective on
April 1, 1999. The Term A loans and the revolving credit facility will mature on
March 31, 2005 and the Term B loans will mature on March 31, 2007. Approximately
$890 million in borrowings from this new facility were used to consummate the
DPS acquisition, refinance our $440 million credit facility, of which $360
million was outstanding, and other indebtedness and pay related fees and
expenses. The credit facility is secured by the capital stock of each of our
existing and subsequently acquired domestic subsidiaries, excluding Practice
Patterns Science, Great Plains Reinsurance, ValueRx of Michigan, Diversified NY
IPA and Diversified Pharmaceutical Services (Puerto Rico), and 65% of the stock
of our foreign subsidiaries.

The credit facility requires us to pay interest quarterly on an interest
rate spread based on several LIBOR or base rate options. Using a LIBOR spread,
the Term A loans and the revolving loan have a spread of 2.75%, resulting in an
interest rate, including the spread, at May 1, 1999, of 7.625%. The Term B loans
have a LIBOR spread of 3.5%, resulting in an interest rate, including the
spread, at May 1, 1999, of 8.375%. Beginning in March 2001, we are required to
make annual principal payments on the Term A loans of $42,750,000 in 2001,
$57,000,000 in 2002 and 2003, $62,700,000 in 2004 and $65,550,000 in 2005. The
Term B loans require annual principal payments of $4,650,000 beginning in March
2000 until 2005, $111,600,000 in 2006 and $325,500,000 in 2007. The credit
facility contains covenants that limit the indebtedness we may incur and the
amount of annual capital expenditures. The covenants also establish a minimum
interest coverage ratio, a maximum leverage ratio, and a minimum fixed charge
coverage ratio. In addition, we are required to pay an annual fee of 0.5%,
payable in quarterly installments, on the unused portion of the revolving loan.
At March 31, 1999 and December 31, 1998, we were in compliance with all
covenants associated with the $440 million credit facility. As a result of
refinancing our $440 million credit facility, we will write-off the remaining
deferred financing fees at March 31, 1999 of $3,250,000, approximately
$1,950,000 net of tax, as an extraordinary item during the second quarter of
1999.

To alleviate interest rate volatility, we entered into an interest rate
swap arrangement for a notional principal amount of $360 million, effective
April 3, 1998, with the First National Bank of Chicago, a subsidiary of Bank One
Corporation. Under the terms of the swap, we agreed to receive a floating rate
of interest on a portion of our term loans based on a three-month LIBOR rate in
exchange for payment of a fixed rate of interest of 5.88% per annum. The
notional amount of the swap amortizes, beginning in April 1999, in semi-annual
installments of $27 million, increasing to $36 million in April 2000, to $45
million in April 2001 and to $48 million in April 2002. As a result, we have, in
effect, converted $360 million of our variable rate term debt to fixed rate debt
at 5.88% for the entire term of the term loans plus the credit rate spread.

In order to assist our funding of the DPS acquisition, we obtained a $150
million senior subordinated bridge credit facility from Credit Suisse First
Boston Corporation and Bankers Trust Corporation. The facility became effective
on April 1, 1999 and matures on March 31, 2000 unless converted into a term
loan. The facility requires us to make quarterly interest payments on a spread
over several LIBOR or base rate options. The facility requires us to pay an
initial spread of 5%, resulting in an interest rate, including the spread, at
May 1, 1999, of 9.97%, and increasing 0.5% every quarter. The net proceeds from
this offering will be used to repay the $150 million senior subordinated bridge
credit facility and approximately $149 million of the Term B loans under the
$1.05 billion credit facility. The net proceeds from our senior notes offering,
if consummated, will be used to repay a portion of the Term B loans under our
$1.05 billion credit facility. As a result of

41
<PAGE> 45

the partial repayment of the Term B loans, we will write-off approximately
$2,609,000, approximately $1,565,000 net of tax, of the Term B deferred
financing fees as an extraordinary item. If we consummate our senior notes
offering, as a result of the partial prepayment of the Term B loans, we will
write-off approximately an additional $3,412,000, $2,047,000 net of tax, of the
Term B deferred financing fees as an extraordinary item.

As of March 31, 1999, we had repurchased a total of 475,000 shares of our
Class A common stock under the open-market stock repurchase program announced by
us on October 25, 1996, although no repurchases occurred during the first
quarter of 1999 and the year ended 1998. Our board of directors approved the
repurchase of up to 1,700,000 shares and placed no limit on the duration of the
program. Future purchases, if any, will be in the amounts and at the times as we
deem appropriate based upon prevailing market and business conditions, subject
to restrictions on stock repurchases contained in our $1.05 billion credit
facility.

We have reviewed and intend to continue to review potential acquisitions
and affiliation opportunities. We believe that available cash resources, bank
financing or the issuance of additional common stock could be used to finance
any acquisitions or affiliations. However, there can be no assurance we will
make other acquisitions or affiliations in 1999 or thereafter.

OTHER MATTERS

On April 1, 1999, we acquired DPS for $700 million in cash. We financed the
acquisition with $48 million of our cash, $890 million in borrowings from our
$1.05 billion credit facility and $150 million from our senior subordinated
bridge credit facility; see "-- Liquidity and Capital Resources". The
acquisition will be accounted for under the purchase method of accounting. Under
our agreement with SmithKline Beecham relating to our acquisition of DPS,
SmithKline Beecham is obligated to dissolve a joint venture relationship in a
company known as Diversified Prescription Delivery, or DPD, which provides mail
pharmacy services, including services for some clients of DPS. SmithKline
Beecham has executed a letter of intent to acquire the 50% interest in DPD that
it does not currently own. Following the acquisition of this 50% interest,
SmithKline Beecham will transfer ownership of DPD to us or to another company
that we control. We will not pay SmithKline Beecham any additional amounts
beyond what we have already paid to acquire DPS. Consummation of this
transaction is subject to conditions, including preparation of formal contract
documents and the approval of regulatory authorities.

On March 29, 1999, we announced our plans to launch two Internet sites,
YourPharmacy.com and DrugDigest.org. YourPharmacy.com will serve as an online
drug store and offer both prescription and over-the-counter medications,
vitamins, herbs and health and beauty aids. DrugDigest.org will provide
fact-based information on a variety of medications, vitamins and herbs. Both
sites are expected to be operational during the second quarter of 1999. By
allowing us to communicate more effectively and efficiently with our existing
members, we believe that we will be able to reduce our operating costs by
utilizing on-line communication as opposed to more expensive call center
operations and paper-based correspondence. To date we have funded the
development of the Internet sites through operating cash flows and have expensed
these amounts as incurred. We expect to continue funding the development and
operation of these sites with operating cash flows or with working capital
borrowings under our $1.05 billion credit facility.

On February 1, 1999, we announced a three-and-a-half-year contract to
provide PBM services to Blue Cross and Blue Shield of Massachusetts. Beginning
in the second half of

42
<PAGE> 46

1999, we will provide retail network and mail pharmacy services, claims
processing, clinical management support and other related services to
approximately 1 million members.

On March 16, 1998, we announced that, in connection with the consummation
of the sale by New York Life Insurance Company of NYLCare Health Plans to Aetna
U.S. Healthcare (which occurred on July 15, 1998), we reached an agreement with
Aetna to extend our PBM services and infusion therapy services agreements to HMO
members through December 31, 2003. The existing PBM contract pricing is
effective through December 31, 1999, and thereafter pricing adjustments, which
we believe reflect an appropriate market price, will be instituted for the year
2000 and subsequent periods. Our agreement with Aetna provides that we will
continue providing PBM services, excluding informed decision counseling
services, to over 1 million HMO members through 2003, which is comparable to the
NYLCare HMO membership base served by us prior to the Aetna acquisition. The
infusion therapy agreements are extended under their current terms until
December 31, 2000, and thereafter limited price adjustments may take effect
under specific circumstances. The terms of this arrangement were negotiated with
Aetna at arm's length. We believe all fee components reflect an appropriate
market price for our services, and any pricing adjustments will be immaterial to
us. The existing agreements for managed vision care and informed decision
counseling will continue until December 31, 1999. We expect to continue
providing PBM services to members of the NYLCare indemnity programs until the
members are converted to new health insurance policies, which is anticipated to
occur primarily during 1999. In connection with the Aetna arrangement, we have
reached an agreement whereby New York Life may make up to $2.8 million of
transition-related payments to us in 1999, depending upon the level of profit we
derive from the provision of selected PBM services to Aetna, compared to an
estimate of the profit that would have been derived had the NYLCare/Aetna
transaction not taken place, using certain agreed upon assumptions about profit
margins, membership levels and drug utilization rates. The overall impact of
this arrangement on earnings per share is not expected to be material in 1999.

During 1998 and 1997, 4.8% and 15.7%, respectively, of our PBM net revenues
were from services provided to members of HMOs owned or managed by NYLCare or
insurance policies administered by NYLCare while it was a wholly owned
subsidiary of New York Life. Of our net revenues for non-PBM services, 21.5% and
54.8% in 1998 and 1997, respectively, were for services provided to members of
HMOs owned or managed by NYLCare or insurance policies administered by NYLCare
while it was a wholly owned subsidiary of New York Life.

Effective with the first quarter of 1998, we adopted Statement of Financial
Accounting Standards Statement 130, Reporting Comprehensive Income. FAS 130
requires noncash changes in stockholders' equity to be combined with net income
and reported in a new financial statement category entitled comprehensive
income. Other than net income, the only component of comprehensive income for us
is the change in the foreign currency translation account.

Effective with fiscal year end 1998, we adopted Statement of Financial
Accounting Standards Statement 131, Disclosures About Segments of an Enterprise
and Related Information. FAS 131 requires that we report selected information if
specific requirements are met about our operating segments, including
information about services, geographic areas of operation and major customers.
The information is to be derived from the management approach, which designates
the internal organization that is used by management for making operating
decisions and assessing performance as the source of

43
<PAGE> 47

our operating segments. Adoption of FAS 131 did not affect our results of
operations or our financial position but did affect the disclosure of segment
information; see Note 13 in our 1998 consolidated financial statements.

In June 1998, Statement of Financial Accounting Standards Statement 133,
Accounting for Derivative Instruments and Hedging Activities, was issued. FAS
133 requires all derivatives to be recognized as either assets or liabilities in
the statement of financial position and measured at fair value. In addition, FAS
133 specifies the accounting for changes in the fair value of a derivative based
on the intended use of the derivative and the resulting designation. FAS 133 is
effective for all fiscal quarters of fiscal years beginning after June 15, 1999,
and will be applicable to our first quarter of fiscal year 2000. Our present
interest rate swap, see "-- Liquidity and Capital Resources", would be
considered a cash flow hedge. Accordingly, the change in the fair value of the
swap would be reported on the balance sheet as an asset or liability. The
corresponding unrealized gain or loss representing the effective portion of the
hedge will be initially recognized in stockholders' equity and other
comprehensive income and subsequently any changes in unrealized gain or loss
from the initial measurement date will be recognized in earnings concurrent with
the interest expense on our underlying variable rate debt. If we had adopted FAS
133 as of March 31, 1999, we would record the unrealized loss of $4,086,000 as a
liability and reduction in stockholders' equity and other comprehensive income.

YEAR 2000

Our operations rely heavily on computers and other information systems
technologies. In 1995, we began addressing the "year 2000" issue, which refers
to the inability of certain computer systems to properly recognize calendar
dates beyond December 31, 1999. This arises as a result of systems having been
programmed with two digits rather than four digits to define the applicable year
in order to conserve computer storage space, reduce the complexity of
calculations and produce better performance. The two-digit system may cause
computers to interpret the year "00" as "1900" rather than as "2000", which may
cause system failures or produce incorrect results when dealing with
date-sensitive information beyond 1999.

We formed a year 2000 task force to address this issue. The task force has
performed a self-assessment and developed a compliance plan that addresses: (i)
internally developed application software, (ii) vendor developed application
software, (iii) operating system software, (iv) utility software, (v)
vendor/trading partner-supplied files, (vi) externally provided data or
transactions, (vii) non-information technology devices that are material to our
business, and (viii) adherence to applicable industry standards. Our plan covers
both the traditional Express Scripts and ValueRx systems. Progress in each area
is monitored and management reports are given periodically.

We have various applications and operating systems that are considered
critical to our operations. Approximately 90% of these systems have been
successfully tested by us in an integrated environment for year 2000 compliance.
The remaining systems will be modified to be compliant by the end of the third
quarter of 1999, or information residing on such systems will be integrated into
a year 2000 compliant operating system. Testing of the applications and
operating systems includes the adjudication process, the eligibility process,
the billing and remittance process, the communication process and the reporting
process, including financial reporting. In addition, since 1995, all new
internally developed software has been developed to be year 2000 compliant and
will be fully tested during the remainder of 1999.

44
<PAGE> 48

We are participating in a joint effort with other PBMs, retail pharmacy
chains, transaction routing companies and adjudication software vendors to test
year 2000 compliance in the industry. The joint effort is called the "Y2K
Provider & Vendor Testing Coalition" and is being facilitated by The National
Health Information Network. The coalition has the support of major U.S. retail
pharmacies, including American Stores, CVS, Eckerd, Rite-Aid, Wal-Mart and
Walgreens. The inclusion of transaction routing vendors and software companies
could permit up to 95% of our pharmacy network to be tested (although there can
be no assurance that all parties who are invited to participate will actually
participate). The program will allocate the retail pharmacy chains and software
vendors among the various PBMs who will be required to test the vendors' and
pharmacy chains' year 2000 compliance. The testing is expected to be completed
early in the third quarter of 1999.

We have sent out approximately 1,500 letters to critical vendor/trading
partners requesting a status report regarding their year 2000 compliance. We
have received responses from approximately 30% of these third parties, with the
majority of the vendor/trading partners responding that they are currently
addressing the year 2000 issue and expect to be compliant. We are formulating a
list of vendor/trading partners that have not responded in order to send second
requests.

We have also contacted several hundred clients and several thousand
pharmacies whose computer systems appear to us not to be year 2000 compliant in
an effort to increase awareness of the problem and minimize or eliminate any
disruption in data transfer activity between any of these parties and us. We
have developed date windowing logic, which forces an entry into the century
field of a computer application if one is not provided by the user, which we
believe will address many issues concerning retail pharmacies and clients with
noncompliant systems. Due to our contracts typically extending over several
years and our receipt of member eligibility information from clients that
reflect dates beyond the year 2000, we have been receiving information that
would identify certain year 2000 issues for several years. Any problems we have
encountered to date have been rectified by the client or, if necessary, by us
using our windowing logic. There can be no assurance, however, that all of these
problems that may be encountered in the future can be rectified with the
windowing logic.

In addressing the year 2000 issue, we have and will continue to incur
internal staff costs as well as external consulting and other expenses related
to infrastructure enhancements. To date, we have incurred approximately
$3,700,000 addressing the year 2000 issue. We anticipate spending an additional
$500,000 to $750,000 during the remainder of 1999 addressing the year 2000
issue. All expenditures are being expensed as incurred. To date, these costs
have not had a material adverse effect on our results of operations or financial
condition, and are not expected to have a material adverse effect on our future
results of operations or financial condition.

In connection with our acquisition of DPS, we performed year 2000 due
diligence and received representations that DPS had implemented a year 2000 plan
for upgrading its computer systems and communicated with its vendors/trading
partners regarding their respective year 2000 compliance. Based on our due
diligence and the representations we received, we believe DPS's critical
applications and operating systems have been successfully tested for year 2000
compliance. We plan to continue to review DPS's state of readiness and assess
whether additional steps are necessary.

We believe that, with appropriate modifications to existing computer
systems, updates by vendors and trading partners and conversion to new software
in the ordinary course of

45
<PAGE> 49

our business, the year 2000 issue is not likely to pose significant operational
problems for us. However, if the above-described conversions are not completed
in a proper and timely manner by all affected parties, or if our logic for
communicating with noncompliant systems is ineffective, the year 2000 issue
could result in material adverse operational and financial consequences to us.
There can be no assurance that our efforts, including those relating to the
DPS's systems, or those of our vendors and trading partners, who are beyond our
control, will be successful in addressing the year 2000 issue.

We are in the process of formalizing our contingency plans, which include
DPS, to address potential year 2000-related risks, including risks of
vendor/trading partner noncompliance, as well as noncompliance of any of our
critical operations, and are expected to be substantially completed by the end
of the second quarter of 1999. However, the formalization of the contingency
plans is an ongoing process as we complete our testing and receive updates from
vendor/trading partners. In addition, there can be no assurance that our
contingency plans will successfully address all potential circumstances or
consequences.

IMPACT OF INFLATION

Changes in prices charged by manufacturers and wholesalers for
pharmaceuticals affect our net revenues and cost of revenues. To date we have
been able to recover price increases from our clients under the terms of our
agreements, although under selected arrangements in which we have performance
measurements on drug costs with our clients, we could be adversely affected by
inflation in drug costs if the result is an overall increase in the cost of the
drug plan to the client. To date, changes in pharmaceutical prices have not had
a significant adverse affect on us.

MARKET RISK

To alleviate interest rate volatility, we entered into an interest rate
swap arrangement for a notional principal amount of $360 million effective April
3, 1998, with First National Bank of Chicago, a subsidiary of Bank One
Corporation. Under the swap arrangement, we agreed to receive a floating rate of
interest on an amount equal to a portion of the outstanding principal balance of
our term loans based on a three-month LIBOR rate in exchange for payment of a
fixed rate of interest of 5.88% per annum on such amount. The weighted average
variable rate received by us for the period January 1, 1999 to March 31, 1999,
was 5.08%. The notional amount of the swap amortizes, beginning in April 1999,
in semi-annual installments of $27 million, increasing to $36 million in April
2000, to $45 million in April 2001 and to $48 million in April 2002. The swap
expires on April 3, 2003. At March 31, 1999, the fair value of the swap was
($4,086,000).

Interest rate risk is monitored on the basis of changes in the fair value
and a sensitivity analysis is used to determine the impact interest rate changes
will have on the fair value of the interest rate swap, measuring the change in
the net present value arising from the change in the interest rate. The fair
value of the swap is then determined by calculating the present value of all
cash-flows expected to arise thereunder, with future interest rate levels
implied from prevailing mid-market yields for money-market instruments, interest
rate futures and/or prevailing mid-market swap rates. Anticipated cash-flows are
then discounted on the assumption of a continuously compounding zero-coupon
yield curve. A ten basis point decline in interest rates at March 31, 1999,
would have caused the fair value of the swap to decrease by an additional
$674,000, resulting in a fair value of ($4,760,000).

46
<PAGE> 50

BUSINESS

INDUSTRY OVERVIEW

Prescription drug costs are the fastest growing component of health care
costs in the United States. The U.S. Health Care Financing Administration
estimates that pharmaceuticals currently account for approximately 6.5% of U.S.
health care expenditures, and are expected to increase to 8% by 2007. Estimated
U.S. pharmaceutical sales for 1998 were approximately $75 billion, and HCFA
projects continued sales increases at an average annual growth rate of
approximately 10% through 2007, compared to an average annual growth rate of
approximately 7% for total health care costs during this period. Factors
underlying this trend include:

- increases in research and development expenditures by drug manufacturers,
resulting in many new drug introductions

- a shorter U.S. Food and Drug Administration approval cycle for new
pharmaceuticals

- high prices for new "blockbuster" drugs

- an aging population

- increased demand for prescription drugs due to increased disease
awareness by patients, effective direct-to-consumer advertising by drug
manufacturers and a growing reliance on medication in lieu of lifestyle
changes

Health benefit providers have been seeking ways to better understand and
control drug costs. PBMs help health benefit providers to provide a
cost-effective drug benefit and to better understand the impact of prescription
drug utilization on total health care expenditures. PBMs coordinate the
distribution of outpatient pharmaceuticals through a combination of
benefit-management services, including retail drug card programs, mail pharmacy
services and formulary management programs.

PBMs emerged during the late 1980s by combining traditional pharmacy claims
processing and mail pharmacy services to create an integrated product offering
that could help manage the prescription drug benefit for payors. During the
early 1990s, numerous PBMs were created, with some providers offering a
comprehensive, integrated package of services.

The services offered by the more sophisticated PBMs have broadened to
include disease management programs, compliance programs, outcomes research,
drug therapy management programs and sophisticated data analysis. These advanced
capabilities require resources that may not be available to all PBMs, so further
industry consolidation may occur. If prescription drug costs continue to
escalate and become an even larger portion of overall health care expenditures,
more advanced capabilities will be needed to manage these costs so that health
benefit providers will be able to continue to offer a quality prescription drug
benefit to their members. The more sophisticated PBMs should be in the best
position to offer these services.

THE COMPANY

We are the largest full-service PBM company independent of pharmaceutical
manufacturer or drug store ownership in North America. PBMs coordinate the
distribution of outpatient pharmaceuticals through a combination of benefit
management services,

47
<PAGE> 51

including retail drug card programs, mail pharmacy services, drug formulary
management programs and other clinical management programs. We provide these
types of services for clients that include HMOs, health insurers, third-party
administrators, employers and union-sponsored benefit plans. We believe our
independence from pharmaceutical manufacturer ownership allows us to make
unbiased formulary recommendations to our clients, balancing both clinical
efficacy and cost. We also believe our independence from drug store ownership
allows us to construct a variety of convenient and cost-effective retail
pharmacy networks for our clients, without favoring any particular pharmacy
chain.

We are the third largest PBM in North America in terms of total members,
and we have one of the largest managed care membership bases of any PBM. Before
1998, our growth was driven almost exclusively by our ability to expand our
product offerings and increase our client and membership base through internally
generated growth. From 1992 through 1997, our net revenues and net income
increased at compound annual growth rates of 58% and 49%, respectively. While
our internal growth strategy remains a major focus, we have recently
complemented our internal growth strategy with two substantial acquisitions.
These acquisitions add to the scale of our membership base and broaden our
product offerings. In April 1998, we acquired ValueRx, the PBM business of
Columbia/ HCA Healthcare, and in April 1999, we acquired DPS, the PBM business
of SmithKline Beecham. On a pro forma basis including this offering, our net
revenues and net income for 1998 would have been approximately $3.4 billion and
$52.2 million, respectively, excluding a $709.9 million after-tax write-down of
assets charge and a $1.0 million after-tax restructuring charge.

As of January 1, 1999, our PBM services were provided to approximately 23
million members in the United States and Canada who were enrolled in health
plans sponsored by our clients. As of the same date, after giving effect to the
DPS acquisition, we would have served approximately 47 million members,
including 10 million members under DPS's contract with United HealthCare which
will terminate without renewal on May 31, 2000. Although membership counts are
based on eligibility data, they necessarily involve some estimates,
extrapolations and approximations. For example, some plan designs allow for
family coverage under one identification number, and we make assumptions about
the average number of persons per family in calculating our total membership.
These assumptions vary between us and DPS, and probably vary between us and our
competitors as well. Consequently, membership counts may not be comparable
between us and our competitors. However, we believe our membership count
provides a reasonable estimation of the population we serve, and can be used as
one measure of our growth. Besides United Healthcare, some of our other large
clients include Aetna U.S. Healthcare, Oxford Health Plans and the State of New
York Empire Plan Prescription Drug Program.

Our PBM offerings include:

- network claims processing, mail pharmacy services, benefit design
consultation, drug utilization review, formulary management programs,
disease management and

48
<PAGE> 52

medical and drug data analysis services, and compliance and therapy
management programs for our clients

- market research programs for pharmaceutical manufacturers

- medical information management services, which include provider profiling
and outcome assessments, through our majority owned subsidiary Practice
Patterns Science

- informed decision counseling services through our Express Health Line(SM)
division

Our non-PBM offerings include:

- infusion therapy services through our wholly owned subsidiary IVTx

- distribution of pharmaceuticals requiring special handling or packaging
through our specialty distribution division

Our PBM and non-PBM operations include delivery of a variety of tangible
products and services to our members. However, our net revenues are primarily
generated from the delivery of tangible products through our contractual network
of pharmacies, mail pharmacy services, infusion therapy services and our
specialty distribution business. In 1996, 1997 and 1998, net revenues from the
delivery of products to our members represented 97.3%, 97.7% and 98.3%,
respectively, of our total net revenues. Revenues from other services comprised
the remainder of our net revenues.

STRATEGY

Our strategy is to increase our membership base and grow profitably by
focusing on generating sales to new clients and expanding the services we
provide to existing clients, developing new products and services for sale to
existing clients and drug manufacturers and selectively pursuing acquisitions
and alliances to increase our membership base and enhance our product offerings.

- Generation of Sales to New Clients and Growth from Existing Clients. Our
predominant growth strategy is to pursue sales to new clients and
generate growth in the membership base of existing clients. Our compound
annual growth rate in members, excluding our recent acquisitions, is 48%
since our initial public offering in 1992. The managed care market
segment has experienced, and we believe will continue to experience,
solid growth. We believe additional opportunities also exist in the
employer and union market segments. Recent large new clients under
contract with us include Blue Cross and Blue Shield of Massachusetts and
Buyer's Health Care Action Group. Growth within the membership base of
existing clients is also important to our strategy. When our clients,
such as managed care organizations, third-party administrators and other
third-party payors, market their service offerings to potential members,
they generally market our prescription drug program as part of their
offerings. As their client base grows, our membership base typically also
grows. Our recently announced internet pharmacy service initiative,
YourPhamacy.com and DrugDigest.org, will assist us in executing this
strategy. By allowing us to communicate more effectively and efficiently
with our existing members, we believe that we will be able to reduce our
operating costs by utilizing on-line communication as opposed to more
expensive call center operations and paper-based correspondence. We also
plan to increase the utilization of our existing mail pharmacies, which
processed over 7.4 million prescriptions in 1998 to

49
<PAGE> 53

distribute prescription medications ordered through our Internet
e-commerce site. In addition, we believe that sales of both
pharmaceutical and non-pharmaceutical products to the non-member general
public will help us attract new clients. Furthermore, based on our
clinical capabilities, information databasing and established expertise
in managing prescription drug usage, we believe DrugDigest.org will be a
comprehensive and credible source of information on prescription and
non-prescription medications.

- Development and Sale of New Products and Services to Existing Clients and
Drug Manufacturers. We continue to emphasize the development and sale of
new products and services as part of our PBM offerings to our existing
clients, and we have begun marketing our products to selected
pharmaceutical manufacturers. We believe these products and services are
necessary to compete effectively in the current business environment and
to differentiate us from our competitors on a measure other than price.
We intend to continue to invest in these capabilities in the future.
Products and services developed by us in recent years include disease
management programs, advanced formulary compliance programs, drug
outcomes research, drug therapy management programs, medical information
management, proprietary clinical services and sophisticated management
reporting capabilities. We believe a particular growth area in the PBM
industry will be medical information management. We believe our majority
owned subsidiary Practice Patterns Science is an industry leader in this
area, having developed proprietary software to process and sort medical
claims, prescription drug claims and clinical laboratory data for use by
managed care organizations and other health care companies. Through our
internet initiative we will also sell over-the-counter medications,
health and beauty aids, vitamins and herbs to our existing clients. The
clients most interested in these advanced capabilities are managed care
organizations, but we believe third-party administrators and large
employers present opportunities for the sale of these advanced
capabilities as well. We also intend to continue to expand our product
and service offerings to pharmaceutical manufacturers. Recent
developments in our business include the implementation of compliance,
therapy management and market research programs. We intend to continue to
invest in capabilities that will strengthen our relationships with
manufacturers.

- Growth Through Strategic Acquisitions and Alliances. During the past
several years we have begun to supplement our strong internal growth with
selected acquisitions of other PBMs and strategic alliances. Our
objectives in pursuing acquisitions and alliances are to increase the
scale of our business, expand our client base, increase our penetration
of PBM markets and expand our product and service offerings. Our
acquisitions of ValueRx and DPS substantially increased our membership
base, diversified our client base and increased our presence in key
market segments and enhanced our clinical capabilities, systems and
technologies. Our acquisition of ValueRx added approximately 10 million
members and our acquisition of DPS added approximately 23 million
members. We have formulated and are implementing a detailed plan to
integrate ValueRx and DPS into our operations and have formulated a
similar plan for integrating DPS. We are also party to strategic
alliances with Premier Purchasing Partners and The Manufacturers Life
Insurance Company. We intend to continue to seek alliances with other
organizations and to selectively identify potential acquisition targets
in the future.

50
<PAGE> 54

PRODUCTS AND SERVICES

PHARMACY BENEFIT MANAGEMENT

OVERVIEW. Our PBM services involve the management of outpatient
prescription drug usage to foster high quality, cost-effective pharmaceutical
care through the application of managed care principles and advanced information
technologies. We offer our PBM services to our clients in the United States and
Canada. Our PBM offerings include:

- retail pharmacy network administration

- mail pharmacy services

- benefit plan design consultation

- formulary administration

- electronic point-of-sale claims processing

- drug utilization review

- the development of advanced formulary compliance and therapeutic
intervention programs

- therapy management services such as prior authorization, therapy
guidelines, step therapy protocols and formulary management interventions

- sophisticated management information reporting and analytic services

- provider profiling and outcomes assessments

- informed decision counseling

During 1998, 97.9% of our net revenues were derived from PBM services,
compared to 96.8% and 96.1% during 1997 and 1996, respectively. The number of
retail pharmacy network claims processed and mail pharmacy claims processed has
increased to 113.2 million and 7.4 million claims, respectively, in 1998, from
26.3 million and 1.6 million claims, respectively, in 1994. During 1997 and
1996, we processed 73.2 million and 57.8 million retail pharmacy network claims,
respectively, and 3.9 million and 2.8 million mail pharmacy claims,
respectively.

RETAIL PHARMACY NETWORK ADMINISTRATION. We contract with retail pharmacies
to provide prescription drugs to members of the pharmacy benefit plans managed
by us. In the United States, these pharmacies typically discount the price at
which they will provide drugs to members in return for designation as a network
pharmacy. We manage four nationwide networks in the United States and one
nationwide network in Canada that are responsive to client preferences related
to cost containment and convenience of access for members. We also manage
networks of pharmacies that are under direct contract with our managed care
clients or networks that we have designed to meet the specific needs of some of
our larger clients.

All retail pharmacies in our pharmacy networks communicate with us on-line
and in real time to process prescription drug claims. When a member of a plan
presents his or her identification card at a network pharmacy, the network
pharmacist sends the specified claim data in an industry-standard format through
our systems, which process the claim

51
<PAGE> 55

and respond to the pharmacy, typically within one or two seconds. The electronic
processing of the claim involves:

- confirming the member's eligibility for benefits under the applicable
health benefit plan and the conditions to or limitations of coverage,
such as the amount of copayments or deductibles the member must pay

- performing a concurrent drug utilization review analysis and alerting the
pharmacist to possible drug interactions or other indications of
inappropriate prescription drug usage

- updating the member's prescription drug claim record

- if the claim is accepted, confirming to the pharmacy that it will receive
payment for the drug dispensed

MAIL PHARMACY. We integrate our retail pharmacy services with our mail
pharmacy services. We operate five mail pharmacies, located in Maryland Heights,
Missouri; Tempe, Arizona; Albuquerque, New Mexico; Bensalem, Pennsylvania; and
Troy, New York. These pharmacies provide members with convenient access to
maintenance medications and enable us and our clients to control drug costs
through operating efficiencies and economies of scale. In addition, through our
mail service pharmacies, we are directly involved with the prescriber and
member, and are generally able to achieve a higher level of generic
substitutions and therapeutic interventions than can be achieved through the
retail pharmacy networks. This further reduces our clients' costs.

BENEFIT PLAN DESIGN AND CONSULTATION. We offer consultation and financial
modeling to assist the client in selecting a benefit plan design that meets its
needs for member satisfaction and cost control. The most common benefit design
options we offer to our clients are:

- financial incentives and limitations on the drugs covered by the plan,
including drug formularies, flat dollar or percentage of prescription
cost copayments, deductibles or annual benefit maximum

- generic drug substitution incentives

- incentives or requirements to use only network pharmacies or to order
particular drugs only by mail

- limitations on the number of days' supply of a drug that can be obtained

The selected benefit design is entered into our electronic claims processing
system, which applies the plan design parameters as claims are submitted and
enables us and our clients to monitor the financial performance of the plan.

ADVANCED FORMULARY COMPLIANCE AND THERAPY MANAGEMENT. We provide advanced
formulary compliance services to our clients. Formularies are lists of drugs for
which coverage is provided under the applicable plan. They are widely used in
managed health care plans and, increasingly, by other health plan managers. We
administer a number of different formularies for our clients that often identify
preferred drugs whose use is encouraged or required through various benefit
design features. Historically, many clients have selected a plan design which
includes an open formulary in which all drugs are covered by the plan and
preferred drugs, if any, are merely recommended. More advanced options consist
of restricted formularies, in which various financial or other incentives exist
for the selection of preferred drugs over their non-preferred counterparts, or
closed

52
<PAGE> 56

formularies, in which benefits are available only for drugs listed on the
formulary. Formulary preferences can be encouraged:

- by restricting the formulary through plan design features, such as tiered
copayments, which require the member to pay a higher amount for a
non-preferred drug

- through prescriber education programs, in which we or the managed care
client actively seek to educate the prescribers about the formulary
preferences

- through our OptiMed(SM) drug therapy management program, which actively
promotes therapeutic and generic interchanges to reduce drug costs

We also offer the ExpressTherapeutics(R) program, an innovative proprietary drug
utilization review and clinical intervention program, to assist clients in
managing compliance with the prescribed drug therapy and inappropriate
prescribing practices.

Our National Pharmacy and Therapeutics Committee, composed of independent
physicians and pharmacists, evaluates drugs within a therapy class to determine
whether it is clinically appropriate to give formulary preference to one drug
over another. If clinical appropriateness is established to the committee's
satisfaction, it then evaluates the cost-effectiveness of drugs in the therapy
class. Once a client adopts a formulary, we administer the formulary through our
electronic claims processing system, which alerts the pharmacist if the
prescriber has not prescribed the preferred drug. We or the pharmacist can then
contact the prescriber to attempt to obtain the prescriber's consent to switch
the prescription to the preferred product.

INFORMATION REPORTING AND ANALYSIS AND DISEASE MANAGEMENT
PROGRAMS. Through the development of increasingly sophisticated management
information and reporting systems, we manage prescription drug benefits more
effectively. We have developed various services to offer our clients. The first
service enables a client to analyze prescription drug data to identify cost
trends and budget for expected drug costs, to assess the financial impact of
plan design changes and to identify costly utilization patterns through an
on-line prescription drug decision support tool called RxWorkbench(TM). This
service permits our clients' medically sophisticated personnel, such as a
clinical pharmacist employed by an HMO, to analyze prescription drug data
on-line.

In addition, our majority owned subsidiary Practice Patterns Science offers
provider profiling, disease management support services and outcomes
assessments, and has developed proprietary software to process and sort medical
claims, prescription drug claims and clinical laboratory data. This data is then
used to produce comprehensive information about treatment of patients that can
be used by managed care organizations and other companies involved in formulary
management programs to treat a particular disease in a quality, cost-effective
manner. The patient-specific data generated through all of these services can
then be compared to data in PPS's normative databases, and PPS can determine the
effectiveness of treatment and calculate the total costs of that treatment,
including the prescription drug component, resulting in an assessment of the
particular outcome for a given patient. The information can also be used to
analyze the practice patterns of health care providers and create a provider
profile, then develop empirically based "best practice" protocols, which
recommend treatment regimens for specific diseases.

We offer additional disease management programs to assist health benefit
plans in managing the total health care costs associated with several diseases,
such as asthma,

53
<PAGE> 57

diabetes and cardiovascular disease. These disease management programs are based
upon the premise that patient and provider behavior can positively influence
medical outcomes and reduce overall medical costs. Patient identification can be
accomplished through claims data analysis or self-enrollment, and risk
stratification surveys are conducted to establish a plan of care for individual
program participants. Patient education is primarily effected through a series
of telephone and written communications with nurses and pharmacists, and both
providers and patients receive progress reports on a regular basis. Outcome
surveys are conducted and results are compiled to analyze the clinical, personal
and economic impact of the program.

ELECTRONIC CLAIMS PROCESSING SYSTEM. Our electronic claims processing
system enables us to implement sophisticated intervention programs to assist in
managing prescription drug utilization. The system can be used to alert the
pharmacist to generic substitution and therapeutic intervention opportunities
and formulary compliance issues, or to administer prior authorization and
step-therapy protocol programs at the time a claim is submitted for processing.
Our claims processing system also creates a database of drug utilization
information that can be accessed both at the time the prescription is dispensed
and also on a retrospective basis to analyze utilization trends and prescribing
patterns for more intensive management of the drug benefit.

INFORMED DECISION COUNSELING. We offer health care decision counseling
services through our Express Health Line(SM) division. This service allows a
member to call a toll-free telephone number and discuss a health care matter
with a care counselor who utilizes on-line decision support protocols and other
guidelines to provide information to assist the member in making an informed
decision in seeking appropriate treatment. Records of each call are maintained
on-line for future reference. The service is available 24 hours a day.
Multilingual capabilities and service for the hearing impaired are also
available. The counselors provide follow-up service to members to determine if
their situation was resolved or if the counselor may provide additional
assistance. Member satisfaction and outcomes assessments are tracked through a
combination of member surveys, a quality assurance plan and system reports.

INTERNET PHARMACY. On March 29, 1999, we announced our plans to launch two
internet sites, YourPharmacy.com and DrugDigest.org. YourPharmacy.com will serve
as an online drug store, and offer both prescription and over-the-counter
medications, vitamins, herbs and health and beauty aids. DrugDigest.org will
provide fact-based information on a variety of medications, vitamins and herbs.
Both sites are expected to be operational during the second quarter of 1999.
Although both sites will be available to anyone, we expect to capitalize on the
use of the sites by our existing membership base.

NON-PBM

In addition to PBM services, we also provide non-PBM services including
outpatient infusion therapy, specialty distribution and vision care to our
clients. During 1998, 2.1% of our net revenues were derived from non-PBM
services, compared to 3.2% and 3.9% during 1997 and 1996, respectively.

OUTPATIENT INFUSION THERAPY. We provide infusion therapy services which
involve the administration of prescription drugs and other products to a patient
by catheter, feeding tube or intravenously, through our wholly owned subsidiary
IVTx. IVTx's clients, which include managed care organizations, third-party
administrators, insurance companies, case management companies, unions and
self-insured employers, benefit from outpatient infusion therapy services
because the length of hospital stays can be reduced. Rather than

54
<PAGE> 58

receiving infusion therapy in a hospital, IVTx provides infusion therapy
services to patients at home, in a physician's office or in a free-standing
center operated by a managed care organization or other entity. IVTx provides
antimicrobial, cardiovascular, hematologic, nutritional, analgesic,
chemotherapeutic, hydration, endocrine, respiratory and AIDS management
treatments to patients. IVTx generally prepares the treatments in one of its
infusion therapy pharmacies, which are licensed independently of our mail
pharmacies. The treatments are either administered under the supervision of
IVTx's staff of registered nurses or licensed vocational nurses who are employed
at one of the IVTx sites or, in areas where IVTx does not have a facility,
through contracted registered nurses employed or otherwise retained by nursing
agencies. IVTx may also contract with physicians to provide consultation
services to its sites and contract for pharmacy services for patients who live
in outlying areas.

We have facilities supporting our infusion therapy operations in Houston,
Texas; Dallas, Texas; Columbia, Maryland; Maryland Heights, Missouri; Columbia,
Missouri; Northvale, New Jersey; Tempe, Arizona; and West Chester, Pennsylvania.
IVTx's information system maintains patient profiles and documents doses and
supplies dispensed, and its drug utilization review component accesses our
prescription records for members receiving both infusion and oral drug therapies
to screen for drug interactions, incompatibilities and allergies.

SPECIALTY DISTRIBUTION. We began offering specialty distribution services
during the fourth quarter of 1997 through our Tempe, Arizona facility. This
service assists pharmaceutical manufacturers with the distribution of, and
creation of a database of information for, products requiring special
handling/packaging or products targeted to a specific physician or patient
population.

VISION CARE. Until September 1998, we offered a managed vision care
program through a network of approximately 9,000 vision care providers
consisting primarily of optometrists and a smaller number of ophthalmologists.
In addition to administering the network, we ground and edged lenses, assembled
eyeglasses and distributed eyeglasses and contact lenses from our vision lab
formerly located in Earth City, Missouri.

We entered into an agreement, effective September 1, 1998, with Cole
Managed Vision, a subsidiary of Cole National Corporation, pursuant to which
Cole provides vision care services for our clients and their members. The
agreement enables us to focus on our PBM business while still offering a vision
care service to our members by transferring functions performed by our Express
Scripts Vision Corporation to Cole. The Cole vision program is offered to
substantially all of our PBM clients, and we receive a fee from Cole based on
usage of the vision benefit by members. In conjunction with the Cole agreement,
we also announced plans to close the operations of our wholly owned subsidiary,
PhyNet, a vision program management service organization.

SUPPLIERS

We maintain an extensive inventory in our mail pharmacies of brand name and
generic pharmaceuticals. If a drug is not in our inventory, we can generally
obtain it from a supplier within one or two business days. We purchase our
pharmaceuticals either directly from manufacturers or through wholesalers.
During 1998, approximately 56.2% of our pharmaceutical purchases were through
one wholesaler, most of which were brand name pharmaceuticals. Generic
pharmaceuticals are generally purchased directly from manufacturers. We believe
that alternative sources of supply for most generic and brand name
pharmaceuticals are readily available.

55
<PAGE> 59

CLIENTS

We are a major provider of PBM services to the managed care industry,
including several large HMOs, and the employer industry, both directly and
through third-party administrators. Excluding United HealthCare, some of our
largest managed care clients include Aetna U.S. Healthcare and Oxford Health
Plans. The Aetna plans we service are composed primarily of the plans of the
former NYLCare Health Plans entity, which was a wholly owned subsidiary of New
York Life Insurance Company. Some of our largest employer groups include the
State of New York Empire Plan Prescription Drug Program, through a
subcontracting relationship with CIGNA HealthCare, and the State of Ohio Bureau
of Workers' Compensation Fund. We also market our PBM services through preferred
provider organizations, group purchasing organizations, health insurers, third-
party administrators of health plans and union-sponsored benefit plans.

We provide PBM services, including informed decision counseling, and
non-PBM services, including infusion therapy services, to HMOs owned or managed
by Aetna/NYLCare, and provide PBM services to insurance plans underwritten and
administered by Aetna/NYLCare. Of our net revenues from PBM services in 1998,
4.8% was for services provided to members of HMOs owned or managed by NYLCare or
insurance policies administered by NYLCare while NYLCare was a subsidiary of New
York Life. In connection with Aetna's purchase of NYLCare, an agreement has been
reached to extend our PBM service agreements with HMOs, excluding the informed
decision counseling component, and our infusion therapy agreements through
December 31, 2003, with new pricing to take effect after December 31, 1999. We
also expect to continue to provide PBM services to members of the NYLCare
indemnity programs until their members are converted to Aetna policies, which is
anticipated to occur during 1999.

With the completion of the DPS acquisition, United HealthCare became our
largest client, with approximately 10 million members. DPS's contract with
United HealthCare will expire on May 31, 2000, and United HealthCare has
indicated it will be moving to another provider at that time. In our financial
analysis of the DPS acquisition, we assumed United HealthCare would not renew
its contract. However, if we are not able to reduce our costs on a basis
commensurate with our expectations and manage the transition of this large
client to another provider both efficiently and effectively, the loss of this
contract may materially adversely affect our business and results of operations.

In February 1999, we announced a three-and-a-half-year contract with Blue
Cross and Blue Shield of Massachusetts. Beginning in the second half of 1999, we
will provide PBM services, including retail network and mail pharmacy services,
claims processing, clinical management support and other related services to
approximately 1 million members.

In January 1999, DPS announced a five-year contract with Oxford Health
Plans. Under the contract, we provide retail network, claims processing,
clinical management support and other related services to approximately 2
million members.

ACQUISITIONS AND STRATEGIC ALLIANCES

In April 1999, we acquired DPS from SmithKline Beecham and one of its
affiliates for $700 million in cash. We financed the acquisition and refinanced
all of our existing indebtedness through a $1.05 billion credit facility and a
$150 million senior subordinated bridge credit facility. Goodwill and customer
contract amortization from the DPS acquisition is tax deductible. DPS
traditionally concentrated on the managed care segment

56
<PAGE> 60

of the PBM market and, with the completion of this acquisition, we have one of
the largest managed care membership bases of any PBM. Although we continue to be
the third largest PBM in North America in terms of total members, the DPS
acquisition significantly added to the size of our membership base and will
provide us with additional operating scale. In addition, the acquisition
provides us with enhanced clinical capabilities, such as technologies for
modeling the clinical and cost effectiveness of therapy alternatives, and
sophisticated information and reporting systems.

In April 1998, we acquired the PBM business known as ValueRx from Columbia/
HCA Healthcare for approximately $460 million in cash, including approximately
$15 million in transaction costs and executive severance costs. Historically,
while both we and ValueRx served all segments of the PBM market, we primarily
focused on managed care and smaller self-funded plan sponsors, and ValueRx
concentrated on health insurance carriers and large employer and union groups.
We believe the ValueRx acquisition has provided and will continue to provide us
with additional resources and expertise, which will allow us to better serve our
clients and competitively pursue new business in all segments of the PBM market.

In January 1996, we entered into a series of agreements with American
HealthCare Systems Purchasing Partners, now known as Premier Purchasing
Partners, a health care group purchasing organization affiliated with APS
Healthcare, now known as Premier. Under our agreement with Premier, we are the
exclusive preferred vendor of PBM services recommended by Premier and the
Premier Partnership to health plans eligible to participate in the Premier
Partnership's group purchasing programs. In May 1996, we issued 454,546 shares
of our Class A common stock to the Premier Partnership as a result of the number
of Premier plan members that were receiving our PBM services and the outcome of
certain joint drug purchasing initiatives. The Premier Partnership could become
entitled to receive up to an additional 4,500,000 shares of our Class A common
stock, depending upon the number of members in Premier-affiliated managed care
plans that contract for our PBM services. A calculation is made on April 1 of
each year to determine if a stock issuance will be made. Although final
calculations for the April 1, 1999 measurement are not yet complete, we do not
believe that the calculation will result in an additional stock issuance to the
Premier Partnership. If the Premier Partnership earns stock totaling over 5% of
our total voting stock, it is entitled to have its designee nominated for
election to our board of directors. As of the date of this prospectus, the
Premier Partnership has not reached this 5% threshold. Premier designates us as
its exclusive preferred PBM provider, but an individual Premier member is not
required to enter into an agreement with us.

In November 1995, we entered into a ten-year strategic alliance with The
Manufacturers Life Insurance Company, one of the largest providers of group
health insurance policies in Canada, pursuant to which we are the exclusive
provider of PBM services. As a result of this alliance, Manulife can earn up to
approximately 474,000 shares of our Class A common stock, depending on its
achievement of pre-determined pharmacy claim volumes from 1996 to 2000. In
addition, if Manulife does not terminate the alliance in either year 6 or year
10 of the agreement, in each of these years it will receive a warrant to
purchase up to 237,000 shares of our Class A common stock exercisable at 85% of
the then fair market value of these shares. The actual number of shares will
depend upon claims volume in each year.

In January 1995, we entered into an exclusive three-year agreement to
provide PBM services to Coventry Corporation, pursuant to which Coventry
received 50,000 shares of

57
<PAGE> 61

our Class A common stock. In December 1997, Coventry extended its agreement for
an additional two years. In connection with this extension, we issued, as an
advance discount, a seven-year warrant to purchase an additional 50,000 shares
of our Class A common stock, exercisable at a price of $26.4544 per share; the
share price is 90% of the per share market value at the time of renewal.

COMPANY OPERATIONS

GENERAL. In our various facilities in the United States, we own and
operate five mail pharmacies and seven member service/pharmacy help desk call
centers, four of which are now linked to create a virtual call center
environment. Electronic pharmacy claims processing for the traditional Express
Scripts/ValueRx business is principally directed through our Maryland Heights,
Missouri facility then routed to the appropriate computer platform at our
Maryland Heights, Missouri or Tempe, Arizona facility or at Perot Systems'
facility, which maintains some of our computer hardware. The claims processing
for the traditional DPS business is currently handled by Electronic Data Systems
Corp., or EDS, at its facility in Plano, Texas, with whom DPS had an agreement
for these services. EDS owns the computer hardware and operating software, and
we own the application software for these operations. At our Canadian facility,
we have sales and marketing, client services, pharmacy help desk, clinical,
provider relations and management information systems capabilities.

SALES AND MARKETING; CLIENT SERVICE. We market our PBM services in the
United States primarily through an internal staff of regional marketing
representatives and sales personnel located in various cities throughout the
United States. The marketing representatives are supported by a staff of client
service representatives. Our sales and marketing personnel and client service
representatives are organized by type of business served, for example managed
care group, employer group or union group. Marketing in Canada is conducted by
marketing representatives located in Mississauga, Ontario, who are assisted by
our personnel based in the United States. Although we cross-sell our infusion
therapy services to our PBM clients, our IVTx subsidiary employs its own sales
and marketing and client service personnel to take advantage of individual
market opportunities.

MEMBER SERVICES. We believe client satisfaction is dependent upon member
satisfaction. Members can call us toll-free, 24 hours a day, to obtain
information about their prescription drug plan. We employ member service
representatives who are trained to respond to member inquiries.

PROVIDER RELATIONS. Our provider relations group is responsible for
contracting and administering our pharmacy networks. To participate in our
retail pharmacy networks, pharmacists must meet specific qualifications and are
periodically required to represent to us that their applicable state licensing
requirements are being maintained and that they are in good standing. Pharmacies
can contact our various pharmacy help desks toll-free, 24 hours a day, for
information and assistance in filling prescriptions for members. In addition,
our provider relations group audits selected pharmacies in the retail pharmacy
networks to determine compliance with the terms of the contract with us or our
clients.

CLINICAL SUPPORT. Our Health Management Services Department employs
clinical pharmacists, data analysts and outcomes researchers who provide
technical support for our PBM services. These staff members assist in providing
high level clinical pharmacy services such as formulary development, drug
information programs, clinical interventions with physicians, development of
drug therapy guidelines and the evaluation of drugs for

58
<PAGE> 62

inclusion in clinically sound therapeutic intervention programs. The Health
Management Services Department also analyzes and prepares reports on clinical
pharmacy data for our clients and conducts specific data analyses to evaluate
the cost-effectiveness of various drug therapies.

MANAGEMENT INFORMATION SYSTEMS. Our Information Systems Department
supports our pharmacy claims processing systems and other management information
systems which are essential to our operations. Uninterrupted point-of-sale
electronic retail pharmacy claims processing is a significant operational
requirement for us, and we are in the process of integrating the systems
acquired with the DPS and ValueRx acquisitions with our historical systems
located at our Maryland Heights, Missouri and Tempe, Arizona facilities.
Substantially all claims for the traditional Express Scripts/ValueRx business
are presently directed through our Maryland Heights, Missouri facility then
routed to the appropriate computer platform at our Maryland Heights, Missouri or
Tempe, Arizona facility, or at Perot Systems' facility. Perot Systems maintains
the computer hardware for the ValueRx systems at its facility in Richardson,
Texas. Our historical claims processing systems located in our Maryland Heights,
Missouri and Tempe, Arizona facilities are designed to be redundant, which
enables us to do substantially all claims processing in one facility if the
other facility is unable to process claims. Disaster recovery services for the
ValueRx systems are provided by a third party. The claims processing for the
traditional DPS business is currently handled by EDS at its facility in Plano,
Texas, with whom DPS had an agreement for these services. EDS owns the computer
hardware and operating software, and we own the application software for these
operations. EDS provides disaster recovery services for the DPS business. We
have substantial capacity for growth in our claims processing facilities.

COMPETITION

We believe the primary competitive factors in each of our businesses are
price, quality of service and breadth of available services. We believe our
principal competitive advantages are our size, our independence from
pharmaceutical manufacturer and drug store ownership, our strong managed care
and employer group customer base which supports the development of advanced PBM
services and our commitment to provide flexible and distinctive service to our
clients. We believe our independence from pharmaceutical manufacturer ownership
allows us to make unbiased formulary recommendations to our clients, balancing
both clinical efficacy and cost, and our independence from drug store ownership
allows us to construct a variety of convenient and cost-effective retail
pharmacy networks for our clients, without favoring any particular pharmacy
chain. Some clients have indicated that this independence has been an important
factor in their decision making process.

We believe a particular growth area in the PBM industry will be medical
information management. We believe our majority owned subsidiary, Practice
Patterns Science, is an industry leader in this area, having developed
proprietary software to process and sort medical claims, prescription drug
claims and clinical laboratory data for use by managed care organizations and
other health care companies.

There are a large number of companies offering PBM services in the United
States. Most of these companies are smaller than us and offer their services on
a local or regional basis. We do, however, compete with a number of large,
national companies, including Merck-Medco Managed Care, a subsidiary of Merck &
Co., PCS, a subsidiary of Rite-Aid and Caremark International, a subsidiary of
MedPartners, as well as numerous insurance

59
<PAGE> 63

and Blue Cross and Blue Shield plans and several HMOs which have their own PBM
capabilities. Several of these other companies may have greater financial,
marketing and technological resources than us.

In general, consolidation is a critical factor in the pharmaceutical
industry, and particularly so in the PBM segment. Competitors that are owned by
pharmaceutical manufacturers or drug store chains may have pricing advantages
that are unavailable to us and other independent PBMs. However, we believe
independence from pharmaceutical manufacturer and drug store ownership is
important to some of our clients, and we believe this independence provides us
an advantage in marketing to those clients.

Some of our PBM services, such as disease management, informed decision
counseling and medical information management services, compete with those being
offered by pharmaceutical manufacturers, other PBMs, large national companies,
specialized disease management companies and information service providers. Our
non-PBM services compete with a number of large national companies as well as
with local providers.

SERVICE MARKS AND TRADEMARKS

We and our subsidiaries have registered several service marks, including
"Express Scripts(R)", "ExpressComp(R)", "ExpressReview(R)", "Express
Therapeutics(R)", "IVTx(R)", "PERx(R)", "PERxCare(R)", "PERxComp(R)", "PTE(R)",
"ValueRx(R)" and "Value Health, Inc.(R)", with the United States Patent and
Trademark Office. We also acquired several additional trademarks through our
acquisition of DPS. Our rights to these marks will continue as long as we comply
with the usage, renewal filing and other legal requirements relating to the
renewal of service marks. We are in the process of applying for registration of
several other trademarks and service marks. If we are unable to obtain any
additional registrations, we believe there would be no material adverse effect
on our business.

INSURANCE

Our PBM operations, including the dispensing of pharmaceutical products by
our mail service pharmacies, the services rendered in connection with our
disease management and informed decision counseling services and the products
and services provided in connection with our infusion therapy programs,
including the associated nursing services, have subjected us and may subject us
in the future to litigation and liability for damages. We believe our insurance
protection is adequate for our present business operations, but there can be no
assurance that we will be able to maintain our professional and general
liability insurance coverage in the future or that this insurance coverage will
be available on acceptable terms or adequate to cover any or all potential
product or professional liability claims. A successful product or professional
liability claim in excess of our insurance coverage could have a material
adverse effect upon our business.

60
<PAGE> 64

FACILITIES AND EMPLOYEES

We operate our United States and Canadian PBM and non-PBM businesses out of
leased and owned facilities throughout the United States and Canada. All of our
facilities are leased except for our Albuquerque, New Mexico facility, which we
own.

PBM Facilities

Maryland Heights, Missouri
Earth City, Missouri
Tempe, Arizona
Plymouth, Minnesota
Bloomington, Minnesota
Bensalem, Pennsylvania
Horsham, Pennsylvania
Troy, New York
Farmington Hills, Michigan
Albuquerque, New Mexico
Mississauga, Ontario

Non-PBM Facilities

Maryland Heights, Missouri
Earth City, Missouri
Columbia, Missouri
Dallas, Texas
Houston, Texas
Columbia, Maryland
Tempe, Arizona
Northvale, New Jersey
West Chester, Pennsylvania

Our Maryland Heights, Missouri facility houses our corporate offices.
IVTx's corporate offices are also located at the Maryland Heights, Missouri
site. Our non-PBM specialty distribution services are operated out of our
facility in Tempe, Arizona. We believe our facilities are generally
well-maintained and are in good operating condition.

During 1998, we entered into an operating lease for a new corporate
headquarters facility to be located adjacent to our existing Maryland Heights,
Missouri facility. Construction of the new building is substantially complete,
and we anticipate moving into it in May 1999. We are continuing to evaluate our
future requirements for additional space.

We own computer systems for both the Maryland Heights, Missouri and Tempe,
Arizona sites. Computer systems to process the business acquired with ValueRx
are located at Perot Systems' facility in Richardson, Texas. Perot Systems
maintains the computer hardware on our behalf. The claims processing for the
traditional DPS business is currently handled by EDS at its facility in Plano,
Texas, with whom DPS has an agreement for these services. EDS owns the computer
hardware and operating software, and we own the application software for these
operations. Our software for drug utilization review and other products has been
developed internally by us or purchased under perpetual, nonexclusive license
agreements with third parties. Our computer systems at each site are extensively
integrated and share common files through local and wide area networks. An
uninterruptable power supply and diesel generator allow our computers, telephone
systems and mail pharmacy at each site to continue to function during a power
outage. To protect against loss of data and extended downtime, we store software
and redundant files at both on-site and off-site facilities on a regular basis
and have contingency operation plans in place.

As of May 1, 1999, we employed a total of 4,325 employees in the United
States and 72 employees in Canada. We have approximately 375 employees who are
members of collective bargaining units. Specifically, we employ members of the
Service Employees International Union at our Bensalem, Pennsylvania facility,
members of the United Auto Workers Union at our Farmington Hills, Michigan
facility, and members of the United

61
<PAGE> 65

Food and Commercial Workers Union at our Albuquerque, New Mexico facility. We
believe our relationships with our employees are good.

LEGAL PROCEEDINGS

We acquired all of the outstanding capital stock of Value Health, Inc., a
Delaware corporation, and Managed Prescription Network, a Delaware corporation,
from Columbia/HCA HealthCare and its affiliates on April 1, 1998 as part of our
acquisition of ValueRx. VHI, MPN and/or their subsidiaries were party to various
legal proceedings, investigations or claims at the time of the ValueRx
acquisition. The effect of these actions on our future financial results is not
subject to reasonable estimation because considerable uncertainty exists about
the outcomes. Nevertheless, in the opinion of management, the ultimate
liabilities resulting from any of these lawsuits, investigations or claims now
pending will not materially affect our consolidated financial position, results
of operations or cash flows.

ValueRx and several of its subsidiaries are party to two securities
litigation matters, Bash, et al. v. Value Health, Inc., et al., No. 3:97 cv 2711
(JCH) (D. Conn.) and Freedman, et al. v. Value Health, Inc., et al., No. 3:95 cv
2038 (JCH) (D. Conn.). The two lawsuits, each filed in 1995, allege that VHI and
other defendants made false or misleading statements to the public in connection
with VHI's acquisition of Diagnostek in 1995. Neither complaint specifies the
amount of damages sought. On February 18, 1999, the court granted plaintiffs'
motions for class certification and certified a class consisting of:

- all persons who purchased or otherwise acquired shares of VHI during the
period from April 3, 1995, through and including November 7, 1995,
including those who acquired shares issued in connection with the
Diagnostek merger

- all persons who purchased or otherwise acquired shares of Diagostek
during the period from March 27, 1995, through and including July 28,
1995

Fact discovery in the consolidated lawsuit is complete. The parties are
awaiting an order from the court regarding the scheduling of expert discovery
and dispositive motions. In connection with the ValueRx acquisition, Columbia
has agreed to defend and hold us and our affiliates, including VHI, harmless
from and against any liability that may arise in connection with either of these
proceedings. Consequently, we do not believe we will incur any material
liability in connection with these matters.

In addition, in the ordinary course of our business there have arisen
various legal proceedings, investigations or claims now pending against us and
our subsidiaries unrelated to the ValueRx acquisition. The effect of these
actions on future financial results is not subject to reasonable estimation
because considerable uncertainty exists about the outcomes. Nevertheless, in the
opinion of management, the ultimate liabilities resulting from any of these
lawsuits, investigations or claims now pending will not materially affect our
consolidated financial position, results of operations or cash flows.

Since 1993, over 100 separate lawsuits have been filed by retail pharmacies
against drug manufacturers, wholesalers and PBMs challenging brand name drug
pricing practices under various state and federal antitrust laws. The suits
alleged, among other things, that the manufacturers had offered, and PBMs had
knowingly accepted, discounts and rebates on purchases of brand name
prescription drugs that violated the federal Sherman Act and the federal
Robinson-Patman Act. Some drug manufacturers settled these actions, including a
Sherman Act case brought on behalf of a nationwide class of retail pharmacies.
The class action settlements generally provided for commitments by the
manufacturers in

62
<PAGE> 66

their discounting practices to retail pharmacies. The class action was recently
dismissed as to drug manufacturers and wholesalers who did not settle. With
respect to the cases filed by plaintiffs who opted out of the class action,
while some manufacturers have settled these actions, the settlements are not
part of the public record.

In August 1997, the U.S. Department of Labor requested information from DPS
concerning its contractual relationships with employer group health plans
governed by ERISA. DPS provided the requested information to the U.S. Department
of Labor, and exchanged correspondence with the U.S. Department of Labor on this
matter until August 1998. Since that time, no additional information requests or
other correspondence has been received. However, the U.S. Department of Labor
has given no indication as to its disposition of this matter, and we cannot
provide any assurance as to the ultimate outcome of this matter or what effect,
if any, it will have on our business as a result of our acquisition of DPS.

63
<PAGE> 67

MANAGEMENT

EXECUTIVE OFFICERS AND DIRECTORS

Our executive officers and directors are as follows:

<TABLE>
<CAPTION>
NAME AGE POSITION
- ---- --- --------
<S> <C> <C>
Howard L. Waltman.................... 66 Chairman and Director
Barrett A. Toan...................... 51 President, Chief Executive Officer and
Director
Stuart L. Bascomb.................... 57 Executive Vice President
Thomas M. Boudreau................... 47 Senior Vice President of Administration,
General Counsel and Secretary
Patrick J. Byrne..................... 44 Senior Vice President Plymouth Site
Operations
Robert W. (Joe) Davis................ 53 Senior Vice President and Chief Information
Systems Officer
Linda L. Logsdon..................... 51 Senior Vice President of Health Management
Services
David A. Lowenberg................... 49 Senior Vice President and Director of Site
Operations
George Paz........................... 43 Senior Vice President and Chief Financial
Officer
Kurt D. Blumenthal................... 54 Vice President of Finance
Joseph W. Plum....................... 52 Vice President and Chief Accounting Officer
Howard Atkins........................ 48 Director
Judith E. Campbell................... 51 Director
Richard M. Kernan, Jr................ 58 Director
Richard A. Norling................... 53 Director*
Frederick J. Sievert................. 51 Director
Stephen N. Steinig................... 53 Director*
Seymour Sternberg.................... 55 Director
Norman Zachary....................... 72 Director*
</TABLE>

- -------------------------

* audit committee member.

Mr. Waltman was elected Chairman of our board of directors in March 1992.
Mr. Waltman has been a director since our inception in September 1986. From 1983
until September 1992, Mr. Waltman was Chairman of the Board and Chief Executive
Officer of Sanus Corp. Health Systems, formerly a wholly owned subsidiary of New
York Life Insurance Company and now known as NYLCare Health Plans. From
September 1992 to December 31, 1995, Mr. Waltman served as Chairman of the Board
of NYLCare.

Mr. Toan was elected our Chief Executive Officer in March 1992 and our
President and a director in October 1990. Mr. Toan has been an executive
employee since May 1989. From January 1985 to May 1989, Mr. Toan served
full-time as the Executive Director of Sanus of Missouri, a St. Louis-based HMO.
From May 1989 until March 1992, Mr. Toan spent approximately one-half of his
time performing services for us, and the remainder of his time serving Sanus.

64
<PAGE> 68

Mr. Bascomb was elected our Executive Vice President in March 1989, and
also served as our Chief Financial Officer and Treasurer from March 1992 until
May 1996.

Mr. Boudreau was elected our Senior Vice President, General Counsel and
Secretary in October 1994. He has served as our General Counsel since June 1994.
From September 1984 until June 1994, Mr. Boudreau was a partner in the St. Louis
law firm of Husch & Eppenberger.

Mr. Byrne was elected our Senior Vice President Plymouth Site Operations in
May 1998. From April 1996 until October 1997, Mr. Byrne served as Vice President
of Underwriting for ValueRx, and then served as Vice President and General
Manager for the National Employer Business Unit of ValueRx for the period
November 1997 until May 1998. From 1991 until March 1996, Mr. Byrne was a
Director of Finance for United HealthCare.

Mr. Davis was elected our Senior Vice President and Chief Information
Systems Officer in September 1997. Mr. Davis served as our Director of Technical
Services and Computer Operations from July 1993 until July 1995, and as our Vice
President and General Manager of St. Louis Operations from July 1995 until
September 1997.

Ms. Logsdon was elected our Senior Vice President of Health Management
Services in May 1997, and served as our Vice President of Demand and Disease
Management from November 1996 until May 1997. Prior to joining us in November
1996, Ms. Logsdon served as Vice President of Corporate Services and Chief
Operating Officer of United HealthCare's Midwest Companies-GenCare/Physicians
Health Plan/MetraHealth, a St. Louis-based HMO, from February 1995 to October
1996, and as Deputy Director/Vice President of GenCare Health Systems, also a
St. Louis-based HMO, from June 1992 to February 1995.

Mr. Lowenberg was elected our Senior Vice President and Director of Site
Operations in October 1994 and our Vice President in November 1993. Mr.
Lowenberg also served as General Manager of our Tempe, Arizona facility from
March 1993 until January 1995.

Mr. Paz joined us and was elected our Senior Vice President and Chief
Financial Officer in January 1998. Prior to joining us, Mr. Paz was a partner in
the Chicago office of Coopers & Lybrand from December 1995 to December 1997, and
served as Executive Vice President and Chief Financial Officer of Life Partners
Group, a life insurance company, from October 1993 until December 1995.

Mr. Blumenthal was elected our Vice President of Finance in May 1995, and
served as our Acting Chief Financial Officer from July 1996 to January 1998.
From August 1993 to February 1995, Mr. Blumenthal served as the Chief Financial
Officer of President Baking Co.

Mr. Plum was elected our Vice President in October 1994, and has served as
our Chief Accounting Officer since March 1992 and our Corporate Controller since
March 1989.

Mr. Atkins was elected a director in January 1997. He has been an Executive
Vice President and the Chief Financial Officer of New York Life since April
1996. From September 1991 until joining New York Life, Mr. Atkins was the
Executive Vice President and Chief Financial Officer of Midlantic Bank
Corporation. Mr. Atkins is also a director of other subsidiaries of New York
Life.

Ms. Campbell was elected a director in November 1997. Ms. Campbell has been
a Senior Vice President and the Chief Information Officer of New York Life since
65
<PAGE> 69

June 1997. From October 1995 until joining New York Life, Ms. Campbell was
Senior Vice President of Consumer Banking, Manager of Deposit Products, Consumer
Payments and Direct Banking of PNCBank. Ms. Campbell served as a Senior Vice
President of Midlantic Bank from May 1992 until October 1995, when Midlantic
Bank was acquired by PNCBank. Ms. Campbell is also a director of other
subsidiaries of New York Life.

Mr. Kernan was elected a director in March 1992. Mr. Kernan has been an
Executive Vice President since March 1991 and the Chief Investment Officer of
New York Life since June 1997. Mr. Kernan is also Chairman of the Board of
Trustees of The Mainstay Funds Limited and the Chairman and CEO of Mainstay VP
Series Fund, both subsidiaries of New York Life, as well as a director of NYLIFE
HealthCare and other subsidiaries of New York Life.

Mr. Norling was elected a director in March 1992. Mr. Norling has been the
Chief Executive Officer of Premier, the largest voluntary health care alliance
in the United States, since September 1998. From September 1997 until September
1998, Mr. Norling was the Chief Operating Officer of Premier. From July 1989
until joining Premier, Mr. Norling was the President and Chief Executive Officer
of Fairview Hospital and HealthCare Services, a regional integrated network of
hospitals, ambulatory care services and health care management enterprises.

Mr. Sievert was elected a director in July 1995. Since January 1997, Mr.
Sievert has been the Vice Chairman of New York Life. From February 1995 to
December 1996, Mr. Sievert was an Executive Vice President of New York Life.
From January 1992 to January 1995, Mr. Sievert was Senior Vice President of New
York Life in charge of financial management and policyholder services for
Individual Operations. Mr. Sievert is also a director or an officer of other
subsidiaries of New York Life.

Mr. Steinig was elected a director in January 1994. Since February 1994,
Mr. Steinig has been Senior Vice President and Chief Actuary of New York Life.
From February 1992 to February 1994, Mr. Steinig was Chief Actuary and
Controller of New York Life. Mr. Steinig is also an officer of other
subsidiaries of New York Life.

Mr. Sternberg was elected a director in March 1992. Mr. Sternberg is the
Chairman, President and Chief Executive Officer of New York Life. Mr. Sternberg
has been with New York Life since February 1989, serving as the President and
Chief Operating Officer from October 1995 to April 1997, the Vice Chairman from
February 1995 to September 1995 and as an Executive Vice President from March
1992 to February 1995. Mr. Sternberg is also Chairman, Chief Executive Officer
and President of NYLIFE HealthCare, and a director or an officer of other
subsidiaries of New York Life.

Mr. Zachary was elected a director in March 1992. From June 1967 to
November 1991, Mr. Zachary held various positions at Logica Data Architects,
formerly known as Data Architects, a consulting and software development
company, including serving as President and a director until November 1990.
Logica has provided consulting services to New York Life from time to time.

66
<PAGE> 70

PRINCIPAL STOCKHOLDERS

The following table sets forth information regarding the beneficial
ownership of our Class A and Class B common stock as of March 1, 1999 (unless
otherwise noted) by:

- each person known by us to own beneficially more than five percent of the
outstanding shares of Class A or Class B common stock

- each of our five most highly compensated executive officers and each of
our directors

- all of our executive officers and directors as a group

Included are amounts of shares which may be acquired on March 1, 1999 or within
60 days of March 1, 1999 pursuant to the exercise of stock options by executive
officers or outside directors. Unless otherwise indicated, each of the persons
or entities listed below exercises sole voting and investment power over the
shares that each of them beneficially owns. All beneficial stockholders other
than New York Life, the parent of NYLIFE HealthCare, own shares of Class A
common stock. New York Life, as beneficial owner, owns all of the outstanding
shares of Class B common stock.

<TABLE>
<CAPTION>
PERCENT OF CLASS
--------------------
AMOUNT AND NATURE PRIOR TO AFTER
NAME AND ADDRESS OF BENEFICIAL OWNERSHIP OFFERING OFFERING
- ---------------- ----------------------- -------- --------
<S> <C> <C> <C>
Class A common stock:
Howard Atkins....................................... 0 * *
Judith E. Campbell.................................. 0 * *
Richard M. Kernan, Jr............................... 0 * *
Richard A. Norling.................................. 48,000 (1) * *
Frederick J. Sievert................................ 0 * *
Stephen N. Steinig.................................. 0 * *
Barrett A. Toan..................................... 372,592 (3) 2.0% 1.6%
Howard L. Waltman................................... 19,200 (4) * *
Norman Zachary...................................... 34,000 (5) * *
Stuart L. Bascomb................................... 63,493 (6) * *
Patrick J. Byrne.................................... 20 (7) * *
David A. Lowenberg.................................. 68,602 (8) * *
George Paz.......................................... 21,039 (9) * *
Directors and Executive Officers as a Group
(18 persons)...................................... 792,345(10) 4.3% 3.4%
Pilgrim Baxter & Associates, Ltd.................... 2,481,100(11) 13.3% 10.7%
825 Duportail Road
Wayne, Pennsylvania 19087
AMVESCAP PLC........................................ 2,229,600(12) 11.9% 9.6%
1 Devonshire Square
London, England EC2M4YR
Class B common stock:
NYLIFE HealthCare Management, Inc................... 15,020,000(13)(14)(15) 100.0% 100.0%
51 Madison Avenue
New York, New York 10010
</TABLE>

- -------------------------
* Indicates less than 1%.

(1) Consists of options for 48,000 shares granted under the Amended and
Restated 1992 Stock Option Plan for Outside Directors.

67
<PAGE> 71

(2) Excludes 360 shares held by Mr. Sternberg's son, as to which shares Mr.
Sternberg disclaims beneficial ownership.

(3) Includes options for 348,000 shares granted under our Amended and Restated
1992 Employee Stock Option Plan and our Amended and Restated 1994 Employee
Stock Option Plan. The shares subject to the options are restricted from
transfer with the transfer restriction lapsing as to 20% of the original
number thereof on each anniversary date of the date of grant. Under the
terms of Mr. Toan's employment agreement, the transfer restriction is
subject to complete lapse in the event of a "Change of Control" (as defined
in the agreement) or termination of Mr. Toan's employment by us without
"Cause" (as defined in the agreement), by Mr. Toan for "Good Reason" (as
defined in the agreement) or by reason of death, disability or retirement.
Pursuant to his employment agreement, Mr. Toan may also have the right to
require us to purchase a portion of his shares within 12 months after his
termination of employment without Cause, for Good Reason or upon death or
disability. Upon termination of Mr. Toan's employment, we will purchase any
shares issued upon the exercise of the options that remain subject to the
transfer restriction at the lesser of the option exercise price or the then
current market value of the Class A common stock. Also included are 592
hypothetical share equivalents invested in the Express Scripts Stock Fund
under our Executive Deferred Compensation Plan, calculated as of March 1,
1999, using the February 26, 1999 per share closing price as reported on
The Nasdaq National Market.

(4) Consists of options for 19,200 shares granted under the Outside Directors
Plan.

(5) Consists of options for 34,000 shares granted under the Outside Directors
Plan.

(6) Includes options for 51,680 shares granted under the Employee Plans, 10,300
shares owned by Mr. Bascomb, of which 3,300 shares are held as co-trustee,
with shared voting and dispositive power, of a trust for the benefit of his
mother, and 1,513 hypothetical share equivalents invested in the Stock Fund
under the Deferred Compensation Plan, calculated as of March 1, 1999, using
the February 26, 1999 per share closing price as reported on The Nasdaq
National Market.

(7) Consists of 20 hypothetical share equivalents invested in the Stock Fund
under the Deferred Compensation Plan, calculated as of March 1, 1999, using
the February 26, 1999 per share closing price as reported on The Nasdaq
National Market.

(8) Consists of options for 68,440 shares granted under the Employee Plans, and
162 hypothetical share equivalents invested in the Stock Fund under the
Deferred Compensation Plan, calculated as of March 1, 1999, using the
February 26, 1999 per share closing price as reported on The Nasdaq
National Market.

(9) Consists of options for 21,000 shares granted under the Employee Plans, and
39 hypothetical share equivalents invested in the Stock Fund under the
Deferred Compensation Plan, calculated as of March 1, 1999, using the
February 26, 1999 per share closing price as reported on The Nasdaq
National Market.

(10) Includes options for 749,450 shares granted under the Outside Directors
Plan and the Employee Plans, and 2,645 hypothetical share equivalents
invested in the Stock Fund under the Deferred Compensation Plan, calculated
as of March 1, 1999, using the February 26, 1999 per share closing price as
reported on The Nasdaq National Market.

(11) The information with respect to the beneficial ownership of these shares is
as of December 31, 1998 and has been obtained from Amendment No. 10 to
Schedule 13G dated February 10, 1999. The schedule reports that the
beneficial owner is a registered investment advisor and shares voting power
with respect to all of the shares reported but has sole dispositive power
as to all of the shares reported.

(12) The information with respect to the beneficial ownership of these shares is
as of December 31, 1998 and has been obtained from Amendment No. 2 to
Schedule 13G dated February 10, 1999. The schedule reports that the
beneficial owner is a parent holding company and shares voting power and
dispositive power as to all of the shares reported.

(13) Messrs. Atkins, Kernan, Sievert, Steinig and Sternberg, and Ms. Campbell,
our directors, are also directors and/or hold various executive positions
with New York Life and/or NYLIFE HealthCare. All of these directors
disclaim beneficial ownership of our Class B common stock owned by NYLIFE
HealthCare.

(14) NYLIFE HealthCare holds 15,020,000 shares of Class B common stock, which
automatically convert upon transfer by NYLIFE HealthCare to any entity
other than an affiliate of NYLIFE HealthCare at any time into shares of
Class A common stock on a share-for-share basis and otherwise at the option
of NYLIFE HealthCare.

(15) If converted to Class A common stock, the Class B common stock would
represent approximately 39.8% of the outstanding Class A common stock.

68
<PAGE> 72

DESCRIPTION OF CAPITAL STOCK

Our authorized capital stock consists of 75,000,000 shares of Class A
common stock, par value $.01 per share, 22,000,000 shares of Class B common
stock, par value $0.01 per share, and 5,000,000 shares of preferred stock, par
value $0.01 per share.

COMMON STOCK

As of April 30, 1999, 18,707,160 shares of Class A common stock were issued
and 18,232,160 shares were outstanding, and 15,020,000 shares of Class B common
stock were issued and outstanding. The outstanding Class A common stock is, and
the Class A common stock offered by this prospectus when issued and paid for
will be, fully paid and non-assessable.

DIVIDENDS. Dividends on the common stock will be paid if, when and as
determined by our board of directors out of funds legally available for this
purpose. Holders of Class A and Class B common stock have the same rights
regarding dividends.

VOTING RIGHTS. Holders of Class A common stock are entitled to one vote
for each share held by them on all matters presented to stockholders. Pursuant
to our certificate of incorporation, the holders of Class B common stock have
ten votes per share. As a result of the disproportionate voting rights given to
holders of Class B common stock, NYLIFE HealthCare could reduce its investment
to slightly less than 10% of our common stock and still control us with a
majority of the combined voting power of our common stock. The affirmative vote
of the holders of a majority of the outstanding Class A common stock is required
for an amendment of the by-laws that would alter the requirement that a majority
of the directors on the audit committee be persons who are not directors of New
York Life or its subsidiaries, other than us, or officers or employees of New
York Life or its subsidiaries, other than us. Our stockholders do not have
cumulative voting rights with respect to the election of directors. Our by-laws
provide for notice requirements for stockholder nominations and proposals at
annual meetings and preclude stockholders holding less than 50% of all
outstanding voting shares from bringing business before any special meeting. No
action required or permitted to be taken at an annual or special meeting of our
stockholders may be taken by written consent without a meeting. We have elected
not to be subject to Section 203 of the General Corporation Law of the State of
Delaware, which prohibits some publicly held Delaware corporations from engaging
in a business combination with an interested stockholder. An interested
stockholder is any person or entity who, together with affiliates and
associates, owns, or within the three immediately preceding years did own, 15%
or more of a corporation's voting stock.

LIQUIDATION RIGHTS. After satisfaction of the preferential liquidation
rights of any preferred stock, the holders of the Class A and Class B common
stock are entitled to share, ratably, in the distribution of all remaining net
assets.

PREEMPTIVE AND OTHER RIGHTS. Other than Premier, the holders of common
stock do not have preemptive rights as to additional issues of common stock or,
other than the Class B common stock, conversion rights. Premier has preemptive
rights for selected underwritten issuances of our Class A common stock, which
have been waived in connection with this offering. The shares of common stock
are not subject to redemption or to any further calls or assessments and are not
entitled to the benefit of any sinking fund provisions.

69
<PAGE> 73

PREFERRED STOCK

Our certificate of incorporation authorizes our board of directors to issue
from time to time, in one or more series, shares of preferred stock with the
designations and preferences, relative voting rights -- except that voting
rights, if any, in respect of the election of directors shall be limited to
voting with the holders of Class A and Class B common stock, as a single class,
with no more than one vote per share of preferred stock -- redemption,
conversion, participation and other rights and qualifications, limitations and
restrictions permitted by law. No shares of preferred stock have been issued.

70
<PAGE> 74

DESCRIPTION OF THE SENIOR CREDIT FACILITY

GENERAL

In connection with the DPS acquisition, on April 1, 1999 we entered into a
new credit facility with a group of lenders, including Credit Suisse First
Boston, an affiliate of Credit Suisse First Boston Corporation, as lead
arranger, administrative agent and collateral agent and Bankers Trust Company,
an affiliate of BT Alex. Brown Incorporated, as syndication agent.

The lenders under the new credit facility provided us $1.05 billion in
senior secured loans, consisting of $750 million in term loans, which includes
$285 million of Term A loans, $465 million of Term B loans and a $300 million
revolving credit facility. The Term A loans will mature on March 31, 2005 and
the Term B loans will mature on March 31, 2007. The revolving credit facility
will be available on a revolving basis until March 31, 2005.

We applied approximately $940 million in proceeds from the new credit
facility to consummate the DPS acquisition, refinance indebtedness and pay
related fees and expenses.

GUARANTEES AND SECURITY

The new credit facility is guaranteed by each of our existing and
subsequently acquired domestic subsidiaries, excluding Practice Patterns
Science, Great Plains Reinsurance Company, ValueRx of Michigan, Diversified NY
IPA and Diversified Pharmaceutical Services (Puerto Rico). The new credit
facility is secured by a first priority pledge of all the capital stock of each
of our existing and subsequently acquired domestic subsidiaries, other than the
excluded subsidiaries, and 65% of the stock of each of our foreign subsidiaries.
In addition, in the event that within six months of the new credit facility's
closing date we have not attained a ratio of Consolidated Total Debt to
Consolidated EBITDA, as defined in the new credit facility, of less than 3.5 to
1.0, or the indebtedness under the new credit facility has not received an
investment grade rating, we must grant a first priority security interest in,
and mortgages on, substantially all of our and our subsidiaries' tangible and
intangible assets.

INTEREST RATES

Interest on the loans under the new credit facility accrues at a specified
margin above either the London Interbank Offered Rate or an alternate base rate,
the higher of Credit Suisse First Boston's prime rate or the federal funds rate
plus 0.5%. For LIBOR-based loans the applicable margin for the Term A loans and
revolving loans will initially be 2.75% per annum, and for the Term B loans the
applicable margin will initially be 3.50% per annum. During the continuance of
any event of default, interest will accrue at the applicable interest rate plus
2.0% per annum.

COVENANTS

The new credit facility contains customary affirmative and negative
covenants, including limitations on indebtedness, liens, investments, dividends,
stock repurchases and other specified transactions and payments. These covenants
also include a specified minimum interest coverage ratio, a maximum ratio of
total debt to EBITDA, as defined in the new credit facility, and a minimum fixed
charge coverage ratio.

EVENTS OF DEFAULT

The new credit facility specifies various customary events of default
including nonpayment of principal, interest or fees, violation of covenants,
incorrectness of representations and warranties and events such as a change of
control or bankruptcy.

71
<PAGE> 75

UNDERWRITING

Under the terms and subject to the conditions contained in an underwriting
agreement dated , 1999, the underwriters named below, for whom Credit
Suisse First Boston Corporation, BT Alex. Brown Incorporated, Warburg Dillon
Read LLC, Morgan Keegan & Company, Inc. and A.G. Edwards & Sons, Inc. are acting
as representatives, have severally, but not jointly, agreed to purchase from us
the following respective numbers of shares of our Class A common stock:

<TABLE>
<CAPTION>
NUMBER
UNDERWRITER OF SHARES
- ----------- ---------
<S> <C>
Credit Suisse First Boston Corporation.............
BT Alex. Brown Incorporated........................
Warburg Dillon Read LLC............................
Morgan Keegan & Company, Inc. .....................
A.G. Edwards & Sons, Inc. .........................

--------
Total.........................................
========
</TABLE>

The underwriting agreement provides that the obligations of the
underwriters are subject to conditions precedent described in the underwriting
agreement, and that the underwriters will be obligated to purchase all of the
shares of our Class A common stock offered by this prospectus, other than those
shares covered by the over-allotment option described below, if any are
purchased. The underwriting agreement provides that, in the event of a default
by an underwriter, in some circumstances the purchase commitments of
non-defaulting underwriters may be increased or the underwriting agreement may
be terminated.

We have granted to the underwriters an option exercisable by Credit Suisse
First Boston Corporation, expiring at the close of business on the 30th day
after the date of this prospectus, to purchase up to 675,000 additional shares
of our Class A common stock at the offering price, less underwriting discounts
and commissions, all as set forth on the cover page of this prospectus. This
option may be exercised only to cover over-allotments in the sale of the shares
of our Class A common stock. To the extent that the option is exercised, each
underwriter will become obligated, subject to conditions, to purchase
approximately the same percentage of the additional shares of our Class A common
stock as it was obligated to purchase pursuant to the underwriting agreement.

We have been advised by the representatives that the underwriters propose
to offer the shares of our Class A common stock to the public initially at the
public offering price set forth on the cover page of this prospectus and,
through the representatives, to selling group members at this price less a
concession of $ per share, and the underwriters and any selling group
members may allow a discount of $ per share on sales to selected other
broker/dealers. After the offering, the public offering price and concession and
discount to dealers may be changed by the representatives.

72
<PAGE> 76

The following table summarizes the compensation to be paid to the
underwriters by us and the expenses payable by us.

<TABLE>
<CAPTION>
WITHOUT WITH
PER SHARE OVER-ALLOTMENT OVER-ALLOTMENT
--------- -------------- --------------
<S> <C> <C> <C>
Underwriting Discounts and
Commissions paid by Express
Scripts, Inc................ $ $ $
Expenses payable by Express
Scripts, Inc................ $ $ $
</TABLE>

We and several of our directors, officers and shareholders (including
NYLIFE HealthCare) have agreed not to offer, sell, contract to sell, announce an
intention to sell, pledge or otherwise dispose of, directly or indirectly, or,
in our case, file with the SEC a registration statement under the Securities Act
relating to any additional shares of our common stock or securities convertible
into or exchangeable or exercisable for any shares of our common stock, without
the prior written consent of Credit Suisse First Boston Corporation for a period
of 90 days after the date of this prospectus.

We have agreed to indemnify the underwriters against various liabilities,
including civil liabilities under the Securities Act, or contribute to payments
that the underwriters may be required to make in respect of these liabilities.

Our Class A common stock is listed on The Nasdaq National Market under the
symbol "ESRX."

The representatives, on behalf of the underwriters, may engage in
over-allotment, stabilizing transactions, syndicate covering transactions,
penalty bids and "passive" market making in accordance with Regulation M under
the Exchange Act. Over-allotment involves syndicate sales in excess of the
offering size, which creates a syndicate short position. Stabilizing
transactions permit bids to purchase the underlying security so long as the
stabilizing bids do not exceed a specified maximum. Syndicate covering
transactions involve purchases of the shares of our Class A common stock in the
open market after the distribution has been completed in order to cover
syndicate short positions. Penalty bids permit the representatives to reclaim a
selling concession from a syndicate member when the shares of our Class A common
stock originally sold by a syndicate member are purchased in a syndicate
covering transaction to cover syndicate short positions. In "passive" market
making, market makers in our Class A common stock who are underwriters or
prospective underwriters may, subject to limitations, make bids for or purchases
of our Class A common stock until the time, if any, at which a stabilizing bid
is made. These stabilizing transactions, syndicate covering transactions and
penalty bids may cause the price of our Class A common stock to be higher than
it would otherwise be in the absence of these transactions. These transactions
may be effected on The Nasdaq National Market or otherwise and, if commenced,
may be discontinued at any time.

Credit Suisse First Boston, an affiliate of Credit Suisse First Boston
Corporation, is an agent and a lender, and Bankers Trust Corporation, an
affiliate of BT Alex. Brown Incorporated, is a lender, under our $150 million
senior subordinated bridge credit facility. Credit Suisse First Boston and
Bankers Trust Company, an affiliate of BT Alex. Brown Incorporated, are agents
and lenders under our $1.05 billion credit facility. In addition, Credit Suisse
First Boston Corporation acted as financial advisor to us in connection with our
acquisition of DPS. In each case, Credit Suisse First Boston Corporation, Credit
Suisse First Boston, Bankers Trust Company and Bankers Trust Corporation will
receive fees in connection with these services. We have also agreed to pay
Credit Suisse First

73
<PAGE> 77

Boston Corporation and BT Alex. Brown Incorporated a financial advisory fee of
approximately $3.4 million if this offering is consummated on or before August
1, 1999. In addition, we have agreed to pay Credit Suisse First Boston and
Bankers Trust Company a fee of approximately $3.4 million if the $150 million
senior subordinated bridge credit facility is not repaid in full on or prior to
August 1, 1999. Some of the underwriters have provided other advisory and
investment banking services to us in the past, for which customary compensation
has been received.

The provisions of Rule 2710(c)(8) of the NASD Conduct Rules apply to this
offering. As described under "Use of Proceeds," the net proceeds of this
offering, after deducting underwriting discounts and commissions and offering
expenses, will be applied to repay our $150 million senior subordinated bridge
credit facility and approximately $149 million of the Term B Loan under our
$1.05 billion credit facility. Under Rule 2710(c)(8), when an NASD member such
as Credit Suisse First Boston Corporation and BT Alex. Brown Incorporated
participate in a distribution of equity securities and more than 10% of the net
proceeds of the distribution is to be paid to a member or its affiliates, one of
the following two criteria must be met:

- the price of the equity securities can be no higher than that
recommended by a "qualified independent underwriter"

- the offering must be for a class of equity securities for which a
"bona fide independent market" exists

Because a "bona fide independent market" for our Class A common stock exists,
the public offering price of our Class A common stock offered by this prospectus
will not be passed upon by a "qualified independent underwriter."

We are currently in compliance in all material respects with the terms of
our $150 million senior subordinated bridge credit facility and our $1.05
billion credit facility. The decision of Credit Suisse First Boston Corporation
and BT Alex. Brown Incorporated to distribute our Class A common stock offered
by this prospectus was made independently of Credit Suisse First Boston and
Bankers Trust Company, which had no involvement in determining whether or when
to distribute our Class A common stock under the terms of this offering. Credit
Suisse First Boston Corporation and BT Alex. Brown Incorporated will not receive
any benefit from this offering other than their respective portions of the
underwriting discounts and commissions paid by us.

NOTICE TO CANADIAN RESIDENTS

RESALE RESTRICTIONS

The distribution of the Class A common stock in Canada is being made only
on a private placement basis exempt from the requirement that we prepare and
file a prospectus with the securities regulatory authorities in each province
where trades of the Class A common stock are effected. Accordingly, any resale
of the Class A common stock in Canada must be made in accordance with applicable
securities laws which will vary depending on the relevant jurisdiction, and
which may require resales to be made in accordance with available statutory
exemptions or pursuant to a discretionary exemption granted by the applicable
Canadian securities regulatory authority. Purchasers are advised to seek legal
advice prior to any resale of the Class A common stock.

REPRESENTATIONS OF PURCHASERS

Each purchaser of the Class A common stock in Canada who receives a
purchase confirmation will be deemed to represent to we and the dealer from whom
such purchase

74
<PAGE> 78

confirmation is received that (1) such purchaser is entitled under applicable
provincial securities laws to purchase such Class A common stock without the
benefit of a prospectus qualified under such securities laws, (2) where required
by law, that such purchaser is purchasing as principal and not an agent and (3)
such purchaser has reviewed the text under "-- Resale Restrictions."

RIGHTS OF ACTION (ONTARIO PURCHASERS)

The securities being offered are those of a foreign issuer and Ontario
purchasers will not receive the contractual right of action prescribed by
Ontario securities laws. As a result, Ontario purchasers must rely on other
remedies that may be available, including common law rights of action for
damages or rescission or rights of action under the civil liability provisions
of the United States federal securities laws.

ENFORCEMENT OF LEGAL RIGHTS

All of the issuer's directors and officers as well as the experts named
herein may be located outside of Canada and, as a result, it may not be possible
for Canadian purchasers to effect service of process within Canada upon the
issuer or such persons. All or a substantial portion of the assets of the issuer
and such persons may be located outside of Canada and, as a result, it may not
be possible to satisfy a judgment against the issuer or such persons in Canada
or to enforce a judgment obtained in Canadian courts against such issuer or
persons outside of Canada.

NOTICE TO BRITISH COLUMBIA RESIDENTS

A purchaser of Class A common stock to whom the Securities Act (British
Columbia) applies is advised that such purchaser is required to file with the
British Columbia Securities Commission a report within ten days of the sale of
any Class A common stock acquired by such purchaser pursuant to this offering.
Such report must be in the form attached to British Columbia Securities
Commission Blanket Order BOR #95/17, a copy of which may be obtained from us.
Only one such report must be filed in respect of Class A common stock acquired
on the same date and under the same prospectus exemption.

TAXATION AND ELIGIBILITY FOR INVESTMENT

Canadian purchasers of Class A common stock should consult their own legal
and tax advisors with respect to the tax consequences of an investment in the
Class A common stock in their particular circumstances and with respect to the
eligibility of the Class A common stock for investment by the purchaser under
relevant Canadian legislation.

FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated in this prospectus by
reference include forward-looking statements under the Securities Act. In
addition, from time to time, we or our representatives have made or may make
forward-looking statements orally or in writing. The words "may," "will,"
"expect," "anticipate," "believe," "estimate," "plan," "intend" and similar
expressions have been used in this prospectus and the documents incorporated in
this prospectus by reference to identify forward-looking statements. We have
based these forward-looking statements on our current views with respect to
future events and financial performance. Actual results could differ materially
from those projected in the forward-looking statements. These forward-looking
statements are subject to risks, uncertainties and assumptions, including, among
other things:

- risks associated with the consummation and financing of our acquisitions
of ValueRx and DPS, including the ability to successfully integrate the
operations of

75
<PAGE> 79

the acquired businesses with our existing operations, client retention
issues and risks inherent in the acquired entities operations

- risks associated with managing and maintaining internal growth

- competition, including price competition, competition in the bidding and
proposal process and our ability to consummate contract negotiations with
prospective clients

- the possible termination of contracts with key clients or providers

- the possible loss of relationships with pharmaceutical manufacturers

- changes in pricing or discount practices of pharmaceutical manufacturers

- adverse results in litigation and regulatory matters, the adoption of
adverse legislation or regulations, more aggressive enforcement of
existing legislation or regulations or a change in the interpretation of
existing legislation or regulations

- the impact of increases in health care costs, changes in drug utilization
patterns and introductions of new drugs

- risks associated with the "year 2000" issue, including our ability to
successfully convert our and DPS's information systems and our and DPS's
non-information systems, and the ability of our and DPS's vendors/trading
partners to successfully convert their systems to be year 2000 compliant

- dependence on key members of management

- risks associated with our ability to meet our debt obligations

- our relationship with New York Life, which possesses voting control of us

- other risks described from time to time in our filings with the SEC

We are not obligated to update or revise any forward-looking statements,
whether as a result of new information, future events or otherwise. All
subsequent written and oral forward-looking statements attributable to us or
persons acting on our behalf are expressly qualified in their entirety by the
cautionary statements contained throughout this prospectus and the documents
incorporated in this prospectus by reference. Because of these risks,
uncertainties and assumptions, you should not place undue reliance on these
forward-looking statements.

76
<PAGE> 80

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and special reports, proxy statements and other
information with the SEC under the Exchange Act. The Exchange Act file number
for our SEC filings is 000-20199. You may read and copy any document we file at
the following SEC public reference rooms:

<TABLE>
<S> <C> <C>
Judiciary Plaza 500 West Madison Street 7 World Trade Center
450 Fifth Street, N.W. 14th Floor Suite 1300
Room 1024 Chicago, Illinois 60661 New York, New York 10048
Washington, D.C. 20549
</TABLE>

You may obtain information on the operation of the public reference room in
Washington, D.C. by calling the SEC at 1-800-SEC-0330.

We file information electronically with the SEC. Our SEC filings also are
available from the SEC's Internet site at http://www.sec.gov, which contains
reports, proxy and information statements and other information regarding
issuers that file electronically. Our Class A common stock is listed on The
Nasdaq National Market.

You may also read and copy our SEC filings and other information at the
offices of Nasdaq Operations, 1735 K Street, N.W., Washington, D.C. 20006.

This prospectus is part of a registration statement we filed with the SEC.
The SEC allows us to "incorporate by reference" selected documents we file with
it, which means that we can disclose important information to you by referring
you to those documents. The information in the documents incorporated by
reference is considered to be part of this prospectus, and information in
documents that we file later with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future filings we will make with the SEC under Section 13(a),
13(c), 14 or 15(d) of the Exchange Act:

- Annual Report on Form 10-K for the fiscal year ended December 31, 1998

- Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 1999

- Current Reports on Form 8-K dated February 18, 1999, February 24, 1999,
March 25, 1999, April 14, 1999, May 12, 1999, May 13, 1999, and Form
8-K/A dated June 12, 1998

- Description of Common Stock contained in Registration Statement on Form
8-A dated May 12, 1992

We will provide a copy of the documents we incorporate by reference, at no
cost, to any person who receives this prospectus, including any beneficial owner
of our common stock. To request a copy of any or all of these documents, you
should write or telephone us at the following address and telephone number:

General Counsel
Express Scripts, Inc.

13900 Riverport Drive

Maryland Heights, Missouri 63043
Telephone: (314) 770-1666

77
<PAGE> 81

LEGAL MATTERS

The validity of the Class A common stock being offered by this prospectus
is being passed upon for us by Thomas M. Boudreau, Senior Vice President,
General Counsel and Secretary, and by Simpson Thacher & Bartlett, New York, New
York, and for the underwriters by Cahill Gordon & Reindel, a partnership
including a professional corporation, New York, New York.

EXPERTS

The Express Scripts, Inc. and Diversified Pharmaceutical Services, Inc. and
Subsidiary Financial Statements as of December 31, 1998 and 1997 and for each of
the three years in the period ended December 31, 1998 included in this
prospectus and the Value Health Pharmacy Benefit Management Financial Statements
as of December 31, 1996 and for each of the two years in the period ended
December 31, 1996 incorporated by reference in this prospectus have been
included in reliance on the reports of PricewaterhouseCoopers LLP, independent
accountants, given on the authority of that firm as experts in auditing and
accounting.

The Value Health Pharmacy Benefit Management Financial Statements as of
December 31, 1997 and for the five-month period ended December 31, 1997 and for
the seven-month period ended July 31, 1997 and the Managed Prescription Network,
Inc. Financial Statements as of December 31, 1997 and 1996 and for each of the
three years in the period ended December 31, 1997 incorporated by reference in
this prospectus have been so included from our current report on Form 8-K/A
dated June 12, 1998 in reliance on the reports of Ernst & Young LLP, independent
accountants, given on the authority of that firm as experts in auditing and
accounting.

78
<PAGE> 82

INDEX TO FINANCIAL STATEMENTS

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<S> <C>
Unaudited Consolidated Balance
Sheet............................. F-3
Unaudited Consolidated Statement of
Operations........................ F-4
Unaudited Consolidated Statement of
Changes in Stockholders' Equity... F-5
Unaudited Consolidated Statement of
Cash Flows........................ F-6
Notes to Unaudited Consolidated
Financial Statements.............. F-7
</TABLE>

EXPRESS SCRIPTS, INC.
CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<S> <C>
Report of Independent Accountants... F-13
Consolidated Balance Sheet.......... F-14
Consolidated Statement of
Operations........................ F-15
Consolidated Statement of Changes in
Stockholders' Equity.............. F-16
Consolidated Statement of Cash
Flows............................. F-17
Notes to Consolidated Financial
Statements........................ F-18
</TABLE>

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY
UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<S> <C>
Unaudited Condensed Consolidated
Balance Sheet..................... F-41
Unaudited Condensed Consolidated
Statement of Operations........... F-42
Unaudited Condensed Consolidated
Statement of Changes in
Stockholders' Equity.............. F-43
Unaudited Condensed Consolidated
Statement of Cash Flows........... F-44
Notes to Unaudited Condensed
Consolidated Financial
Statements........................ F-45
</TABLE>

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY
FINANCIAL STATEMENTS

<TABLE>
<S> <C>
Report of Independent Accountants... F-47
Balance Sheets...................... F-48
Statements of Operations............ F-49
Statements of Stockholder's
Equity............................ F-50
Statements of Cash Flows............ F-51
Notes to Financial Statements....... F-52
</TABLE>

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A COLUMBIA PHARMACY SOLUTIONS
UNAUDITED COMBINED CONDENSED FINANCIAL STATEMENTS

<TABLE>
<S> <C>
Unaudited Combined Condensed Balance
Sheet............................. F-63
Unaudited Combined Condensed State-
ment of Operations................ F-64
Unaudited Combined Condensed State-
ment of Cash Flow................. F-65
Notes to Unaudited Combined
Condensed Financial Statements.... F-66
</TABLE>

F-1
<PAGE> 83

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 1999 AND

FOR THE THREE MONTHS ENDED MARCH 31, 1999

F-2
<PAGE> 84

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
DECEMBER 31, MARCH 31,
1998 1999
------------ ----------
(IN THOUSANDS,
EXCEPT SHARE DATA)
<S> <C> <C>
ASSETS
Current assets:
Cash and cash equivalents................................. $ 122,589 $ 115,838
Receivables, less allowance for doubtful accounts of
$17,806 and $14,883, respectively...................... 433,006 446,453
Inventories............................................... 55,634 55,234
Deferred taxes............................................ 41,011 41,841
Prepaid expenses.......................................... 4,667 3,761
---------- ----------
Total current assets................................... 656,907 663,127
Property and equipment, less accumulated depreciation and
amortization.............................................. 77,499 73,346
Goodwill, less accumulated amortization..................... 282,163 268,081
Other assets................................................ 78,892 92,396
---------- ----------
Total assets........................................... $1,095,461 $1,096,950
========== ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Current maturities of long-term debt...................... $ 54,000 $ 54,000
Claims and rebates payable................................ 338,251 331,525
Accounts payable.......................................... 60,247 65,715
Accrued expenses.......................................... 86,798 71,666
---------- ----------
Total current liabilities.............................. 539,296 522,906
Long-term debt.............................................. 306,000 306,000
Other liabilities........................................... 471 502
---------- ----------
Total liabilities...................................... 845,767 829,408
---------- ----------
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value, 5,000,000 shares
authorized, and no shares issued
Class A Common Stock, $.01 par value, 75,000,000 shares
authorized, 18,610,000 and 18,707,000 shares issued,
respectively........................................... 186 187
Class B Common Stock, $.01 par value, 22,000,000 shares
authorized, 15,020,000 shares issued................... 150 150
Additional paid-in capital................................ 110,099 114,391
Accumulated other comprehensive income...................... (74) (62)
Retained earnings......................................... 146,322 159,865
---------- ----------
256,683 274,531
Class A Common Stock in treasury at cost, 475,000
shares................................................. (6,989) (6,989)
---------- ----------
Total stockholders' equity............................. 249,694 267,542
---------- ----------
Total liabilities and stockholders' equity............. $1,095,461 $1,096,950
========== ==========
</TABLE>

See accompanying notes to consolidated financial statements.

F-3
<PAGE> 85

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31,
--------------------------
1998 1999
----------- -----------
(IN THOUSANDS, EXCEPT PER
SHARE DATA)
<S> <C> <C>
Net revenues................................................ $371,362 $899,087
-------- --------
Cost and expenses:
Cost of revenues.......................................... 338,492 823,647
Selling, general & administrative......................... 18,826 46,440
-------- --------
357,318 870,087
-------- --------
Operating income............................................ 14,044 29,000
-------- --------
Interest income (expense):
Interest income........................................... 2,138 1,393
Interest expense.......................................... (14) (6,222)
-------- --------
2,124 (4,829)
-------- --------
Income before income taxes.................................. 16,168 24,171
Provision for income taxes.................................. 6,290 10,628
-------- --------
Net income.................................................. $ 9,878 $ 13,543
======== ========
Basic earnings per share.................................... $ 0.30 $ 0.41
======== ========
Weighted average number of common shares outstanding during
the period -- Basic EPS................................... 33,053 33,211
======== ========
Diluted earnings per share.................................. $ 0.29 $ 0.40
======== ========
Weighted average number of common shares outstanding during
the period -- Diluted EPS................................. 33,579 34,154
======== ========
</TABLE>

See accompanying notes to consolidated financial statements.

F-4
<PAGE> 86

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

See accompanying notes to consolidated financial statements.

F-5
<PAGE> 87

EXPRESS SCRIPTS, INC.

UNAUDITED CONSOLIDATED STATEMENT OF CASH FLOWS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31,
-------------------
1998 1999
------- --------
(IN THOUSANDS)
<S> <C> <C>
Cash flows from operating activities:
Net income.............................................. $ 9,878 $ 13,543
Adjustments to reconcile net income to net cash provided
by operating activities:
Depreciation and amortization........................ 2,396 8,685
Deferred income taxes................................ (362) 1,545
Bad debt expense..................................... 942 1,592
Tax benefit relating to employee stock options....... 662 1,571
Net changes in operating assets and liabilities...... 10,706 (30,744)
------- --------
Net cash provided by (used in) operating activities....... 24,222 (3,808)
------- --------
Cash flows from investing activities:
Purchases of property and equipment..................... (3,176) (5,677)
Short-term investments.................................. (1,334) --
------- --------
Net cash (used in) investing activities................... (4,510) (5,677)
------- --------
Cash flows from financing activities:
Other, net.............................................. 683 2,722
------- --------
Net cash provided by financing activities................. 683 2,722
------- --------
Effect of foreign currency translation adjustment......... 6 12
------- --------
Net increase (decrease) in cash and cash equivalents...... 20,401 (6,751)
Cash and cash equivalents at beginning of period.......... 64,155 122,589
------- --------
Cash and cash equivalents at end of period................ $84,556 $115,838
======= ========
</TABLE>

See accompanying notes to consolidated financial statements.

F-6
<PAGE> 88

EXPRESS SCRIPTS, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Financial statement note disclosures, normally included in financial
statements prepared in conformity with generally accepted accounting principles,
have been omitted in this Form 10-Q pursuant to the Rules and Regulations of the
Securities and Exchange Commission. However, in the opinion of the Company, the
disclosures contained in this Form 10-Q are adequate to make the information
presented not misleading when read in conjunction with the notes to consolidated
financial statements included in the Company's Annual Report on Form 10-K for
the Year Ended December 31, 1998, as filed with the Securities and Exchange
Commission on March 29, 1999.

In the opinion of the Company, the accompanying unaudited consolidated
financial statements reflect all adjustments (consisting of only normal
recurring adjustments) necessary to present fairly the Unaudited Consolidated
Balance Sheet at March 31, 1999, the Unaudited Consolidated Statement of
Operations for the three months ended March 31, 1998, and 1999, the Unaudited
Consolidated Statement of Changes in Stockholders' Equity for the three months
ended March 31, 1999, and the Unaudited Consolidated Statement of Cash Flows for
the three months ended March 31, 1998, and 1999. Operating results for the three
months ended March 31, 1999 are not necessarily indicative of the results that
may be expected for the year ended December 31, 1999.

2. EARNINGS PER SHARE

Basic earnings per share is computed using the weighted average number of
common shares outstanding during the period. Diluted earnings per share is
computed in the same manner as basic earnings per share but adds the number of
additional common shares that would have been outstanding for the period if the
dilutive potential common shares had been issued. The only difference between
the number of weighted average shares used in the basic and diluted calculation
for all years is stock options and stock warrants granted by the Company using
the "treasury stock" method.

3. ACQUISITION

On April 1, 1998 the Company acquired all of the outstanding capital stock
of Value Health, Inc. and Managed Prescriptions Network, Inc. (collectively, the
"Acquired Entities") from Columbia/HCA Healthcare Corporation ("Columbia") for
approximately $460 million in cash (which includes transactions costs and
executive management severance costs of approximately $15 million),
approximately $360 million of which was obtained through a five-year bank credit
facility (see Note 4) and the remainder from the Company's cash balances and
short-term investments. At closing, the Acquired Entities owned various
subsidiaries that now or formerly conducted a PBM business, commonly known as
"ValueRx."

F-7
<PAGE> 89

EXPRESS SCRIPTS, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

agreements in the amount of $57,653,000 which are being amortized using the
straight-line method over the estimated useful lives of 2 to 20 years and are
included in other assets, and goodwill in the amount of $278,113,000 which is
being amortized using the straight-line method over the estimated useful life of
30 years. In conjunction with the acquisition, the Acquired Entities and their
subsidiaries retained the following liabilities:

<TABLE>
<CAPTION>
(IN THOUSANDS)
<S> <C>
Fair value of assets acquired............................ $ 659,166
Cash paid for the capital stock.......................... (460,137)
---------
Liabilities retained................................ $ 199,029
=========
</TABLE>

The following unaudited pro forma information presents a summary of
combined results of operations of the Company and the Acquired Entities as if
the acquisition had occurred at the beginning of the period presented, along
with certain pro forma adjustments to give effect to amortization of goodwill,
other intangible assets, interest expense on acquisition debt and other
adjustments. The pro forma financial information is not necessarily indicative
of the results of operations as they would have been had the transaction been
effected on the assumed dates. Included in the pro forma information are
integration costs incurred by the Company that are being reported within
selling, general and administrative expenses in the statement of operations.

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31, 1998
(IN THOUSANDS, EXCEPT
PER SHARE DATA)
<S> <C>
Net revenues.......................................... $781,290
Net income............................................ 9,900
Basic earnings per share.............................. 0.30
Diluted earnings per share............................ 0.29
</TABLE>

4. FINANCING

On April 1, 1998, the Company executed a $440 million credit facility with
a bank syndicate led by Bankers Trust Company, consisting of a $360 million term
loan facility and an $80 million revolving loan facility. The credit facility
expires on April 15, 2003 and is guaranteed by the Company's domestic
subsidiaries other than Practice Patterns Science, Inc. ("PPS"), and Great
Plains Reinsurance Company ("Great Plains") and secured by pledges of 100% (or,
in the case of foreign subsidiaries, 65%) of the capital stock of the Company's
subsidiaries other than PPS and Great Plains. The provisions of this term loan
require quarterly interest payments and, beginning in April 1999, semi-annual
principal payments. The interest rate is based on a spread ("Credit Rate
Spread") over several London Interbank Offered Rates ("LIBOR") or base rate
options, depending upon the Company's ratio of earnings before interest, taxes,
depreciation and amortization ("EBITDA") to debt ("Leverage Ratio"). At March
31, 1999, the interest rate was 5.84375%, representing a credit rate spread of
0.75% over the three-month LIBOR rate. The credit facility contains covenants
that limit the indebtedness the Company may incur and the amount of annual
capital expenditures. The covenants also establish a minimum

F-8
<PAGE> 90

EXPRESS SCRIPTS, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

interest coverage ratio, a maximum leverage ratio, and a minimum consolidated
net worth. At March 31, 1999, the Company was in compliance with all covenants.
In addition, the Company is required to pay an annual fee depending on the
leverage ratio, payable in quarterly installments, on the unused portion of the
revolving loan. The commitment fee was 22.5 basis points at March 31, 1999.
There were no borrowings at March 31, 1999 under the revolving loan facility.
The carrying amount of the Company's term loan facility approximates fair value.

In conjunction with the Company's policy to manage interest rate risk, the
Company entered into an interest rate swap agreement ("swap") with The First
National Bank of Chicago, a subsidiary of Bank One Corporation, on April 3,
1998. At March 31, 1999, the swap had a notional principal amount of $360
million. Under the terms of the swap, the Company agrees to receive a floating
rate of interest on the amount of the term loan facility based on a three-month
LIBOR rate in exchange for payment of a fixed rate of interest of 5.88% per
annum. The notional principal amount of the swap amortizes in equal amounts with
the principal balance of the term loan facility. As a result, the Company has,
in effect, converted its variable rate term debt to fixed rate debt at 5.88% per
annum for the entire term of the term loan facility, plus the Credit Rate
Spread.

5. RESTRUCTURING

During the second quarter of 1998, the Company recorded a pre-tax
restructuring charge of $1,651,000 ($1,002,000 after taxes or $0.03 per basic
and diluted earnings per share) associated with the Company closing the non-PBM
service operations of its wholly-owned subsidiary, PhyNet, Inc., and
transferring certain functions of its Express Scripts Vision Corporation to
another vision care provider.

<TABLE>
<CAPTION>
BALANCE AT UTILIZED BALANCE AT
DECEMBER 31, --------------- MARCH 31,
1998 CASH NONCASH 1999
------------ ---- ------- ----------
(IN THOUSANDS)
<S> <C> <C> <C> <C>
Write-down of long-lived assets..... $531 $ -- $(195) $336
Employee transition costs for 61
employees......................... 232 -- -- 232
---- ---- ----- ----
$763 $ -- $(195) $568
==== ==== ===== ====
</TABLE>

The restructuring charge includes tangible assets to be disposed of being
written down to their net realizable value, less cost of disposal. Management
expects recovery to approximate its cost of disposal. Considerable management
judgment is necessary to estimate fair value; accordingly, actual results could
vary from such estimates. The Company anticipates completing the remainder of
the restructuring actions by the end of the third quarter of 1999.

6. SEGMENT REPORTING

The Company is organized on the basis of services offered and has
determined that it has two reportable segments: PBM services and non-PBM
services. The Company manages the pharmacy benefit within an opening segment
which encompasses a fully-

F-9
<PAGE> 91

EXPRESS SCRIPTS, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

integrated PBM service. The remaining three operating service lines (IVTx,
Specialty Distribution and Vision) have been aggregated into a non-PBM reporting
segment.

The following table presents information about the reportable segments for
the three months ended March 31:

<TABLE>
<CAPTION>
PBM NON-PBM TOTAL
-------- ------- --------
(IN THOUSANDS)
<S> <C> <C> <C>
1998
Net revenues......................... $358,924 $12,438 $371,362
Income before income taxes........... 15,038 1,130 16,168
1999
Net revenues......................... $884,435 $14,652 $899,087
Income before income taxes........... 22,660 1,511 24,171
</TABLE>

7. SUBSEQUENT EVENTS

On April 1, 1999 the Company completed its acquisition of Diversified
Pharmaceutical Services, Inc. and Diversified Pharmaceutical Services (Puerto
Rico) Inc. (collectively, "DPS"), from SmithKline Beecham Corporation and
SmithKline Beecham InterCredit BV (collectively, "SB") for approximately $700
million in cash, such amount being subject to adjustment based upon the amount
of working capital of DPS at closing. The acquisition will be accounted for
under the purchase method of accounting. The Company will file an Internal
Revenue Code sec.338(h)(10) election, making amortization expense of certain
intangible assets, including goodwill, tax deductible.

The Company used approximately $48 million of its own cash and financed the
remainder of the purchase price and related acquisition costs through a $1.05
billion credit facility with a bank syndicate led by Credit Suisse First Boston
and Bankers Trust Company, and a $150 million senior subordinated bridge credit
facility from Credit Suisse First Boston and Bankers Trust Company. The Company
also used a portion of the proceeds from the $1.05 billion credit facility to
retire the $360 million principal balance outstanding on its $440 million credit
facility (see Note 4). As a result of the retirement of the $360 million balance
outstanding on its $440 million credit facility, the Company will write-off the
remaining deferred financing fees at March 31, 1999 of $3,250,000, or
approximately $1,950,000 net of tax, as an extraordinary item during the second
quarter of 1999.

The $1.05 billion credit facility consists of a $300 million revolving
facility, a $285 million term facility ("Term A"), and a $465 million term
facility ("Term B"). The revolving facility and the Term A facility are for a
period of six years. The Term B facility is for a period of eight years. The
provisions of this loan require quarterly interest payments and, beginning in
March 2000, annual principal payments. The interest rate is based on a spread
(the "Base Rate Margin") over several LIBOR or base rate options, depending upon
the Company's ratio of debt to EBITDA. However, the initial margin is fixed at
275 basis points for the revolving facility and Term A facility and 350 basis
points for the Term B facility for the first two quarters. The credit facility
contains covenants that limit the indebtedness the Company may incur and the
amount of annual capital

F-10
<PAGE> 92

EXPRESS SCRIPTS, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

expenditures. The covenants also establish a minimum interest coverage ratio, a
maximum leverage ratio, and a minimum fixed charge coverage ratio. In addition,
the Company is required to pay an annual fee of 50 basis points, payable in
quarterly installments, on the unused portion of the revolving facility.

The following represents the schedule of current maturities for the Term A
and Term B facilities (in thousands):

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
-----------------------
<S> <C>
1999....................................................... $ --
2000....................................................... 4,650
2001....................................................... 47,400
2002....................................................... 61,650
2003....................................................... 61,650
Thereafter................................................. 574,650
--------
$750,000
========
</TABLE>

In March 1999, the Company filed a registration statement for an equity
offering of 4.5 million shares of our Class A common stock. The proceeds from
the equity offering will be used to repay the $150 million senior subordinated
bridge credit facility and a portion of the Term B facility. Upon the repayment
of a portion of the Term B facility, the Company will write-off a pro-rata
portion of the deferred financing fees as an extraordinary item.

F-11
<PAGE> 93

EXPRESS SCRIPTS, INC.

CONSOLIDATED FINANCIAL STATEMENTS

AS OF DECEMBER 31, 1997 AND 1998 AND
FOR THE YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998

F-12
<PAGE> 94

REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and
Stockholders of Express Scripts, Inc.

In our opinion, the accompanying consolidated balance sheet and the related
consolidated statements of operations, of changes in stockholders' equity and of
cash flows present fairly, in all material respects, the financial position of
Express Scripts, Inc. and its subsidiaries at December 31, 1998 and 1997, and
the results of their operations and their cash flows for each of the three years
in the period ended December 31, 1998, in conformity with generally accepted
accounting principles. These financial statements are the responsibility of the
Company's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
statements in accordance with generally accepted auditing standards which
require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for the opinion expressed above.

/s/ PRICEWATERHOUSECOOPERS LLP

PricewaterhouseCoopers LLP

St. Louis, Missouri
February 12, 1999

F-13
<PAGE> 95

EXPRESS SCRIPTS, INC.

CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
DECEMBER 31,
----------------------
1997 1998
---- ----
(IN THOUSANDS,
EXCEPT SHARE DATA)
<S> <C> <C>
ASSETS
Current assets:
Cash and cash equivalents................................. $ 64,155 $ 122,589
Short-term investments.................................... 57,938
Receivables, less allowance for doubtful accounts of
$4,802 and $17,806, respectively
Unrelated parties......................................... 194,061 433,006
Related parties........................................... 16,230
Inventories............................................... 28,935 55,634
Deferred taxes............................................ 2,303 41,011
Prepaid expenses.......................................... 346 4,667
-------- ----------
Total current assets.................................... 363,968 656,907
Property and equipment, less accumulated depreciation and
amortization.............................................. 26,821 77,499
Goodwill, less accumulated amortization..................... 251 282,163
Other assets................................................ 11,468 78,892
-------- ----------
Total assets............................................ $402,508 $1,095,461
======== ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Current maturities of long-term debt...................... $ -- $ 54,000
Claims and rebates payable................................ 164,920 338,251
Accounts payable.......................................... 17,979 60,247
Accrued expenses.......................................... 15,007 86,798
-------- ----------
Total current liabilities............................... 197,906 539,296
Long-term debt.............................................. 306,000
Other liabilities........................................... 901 471
-------- ----------
Total liabilities....................................... 198,807 845,767
-------- ----------
Commitments and Contingencies (Notes 3, 9 and 15)

STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value, 5,000,000 shares
authorized, and no shares issued and outstanding........
Class A Common Stock, $.01 par value, 75,000,000 shares
authorized, 9,238,000 and 18,610,000 shares issued and
outstanding, respectively............................... 93 186
Class B Common Stock, $.01 par value, 22,000,000 shares
authorized, 7,510,000 and 15,020,000 shares issued and
outstanding, respectively............................... 75 150
Additional paid-in capital................................ 106,901 110,099
Accumulated other comprehensive income.................... (27) (74)
Retained earnings......................................... 103,648 146,322
-------- ----------
210,690 256,683
Class A Common Stock in treasury at cost, 475,000
shares.................................................. (6,989) (6,989)
-------- ----------
Total stockholders' equity.............................. 203,701 249,694
-------- ----------
Total liabilities and stockholders' equity.............. $402,508 $1,095,461
======== ==========
</TABLE>

See accompanying Notes to Consolidated Financial Statements.

F-14
<PAGE> 96

EXPRESS SCRIPTS, INC.

CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
---------------------------------------
1996 1997 1998
--------- ----------- -----------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C>
Net revenues (including $152,311, $208,118
and $145,758, respectively, from related
parties)................................. $773,615 $1,230,634 $2,824,872
-------- ---------- ----------
Cost and expenses:
Cost of revenues (including $122,157,
$176,761 and $127,255, respectively,
to related parties)................... 684,882 1,119,167 2,584,997
Selling, general and administrative...... 49,103 62,617 148,990
Corporate restructuring.................. -- -- 1,651
-------- ---------- ----------
733,985 1,181,784 2,735,638
-------- ---------- ----------
Operating income........................... 39,630 48,850 89,234
-------- ---------- ----------
Interest income (expense):
Interest income.......................... 3,509 6,081 7,236
Interest expense......................... (59) (225) (20,230)
-------- ---------- ----------
3,450 5,856 (12,994)
-------- ---------- ----------
Income before income taxes................. 43,080 54,706 76,240
Provision for income taxes................. 16,932 21,277 33,566
-------- ---------- ----------
Net income................................. $ 26,148 $ 33,429 $ 42,674
======== ========== ==========
Basic earnings per share................... $ 0.81 $ 1.02 $ 1.29
======== ========== ==========
Weighted average number of common shares
outstanding during the period -- Basic
EPS...................................... 32,160 32,713 33,105
======== ========== ==========
Diluted earnings per share................. $ 0.80 $ 1.01 $ 1.27
======== ========== ==========
Weighted average number of common shares
outstanding during the period -- Diluted
EPS...................................... 32,700 33,122 33,698
======== ========== ==========
</TABLE>

See accompanying Notes to Consolidated Financial Statements.

F-15
<PAGE> 97

EXPRESS SCRIPTS, INC.

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

<TABLE>
<CAPTION>
NUMBER OF SHARES AMOUNT
----------------- -------------------------------------------------------------------------------
ACCUMULATED
CLASS A CLASS B CLASS A CLASS B ADDITIONAL OTHER
COMMON COMMON COMMON COMMON PAID-IN COMPREHENSIVE RETAINED TREASURY
STOCK STOCK STOCK STOCK CAPITAL INCOME EARNINGS STOCK TOTAL
------- ------- ------- ------- ---------- ------------- -------- -------- --------
(IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Balance at December 31,
1995...................... 4,539 10,500 $ 45 $105 $ 33,158 $ -- $ 44,071 $ -- $ 77,379
Comprehensive income:
Net income.............. 26,148 26,148
Other comprehensive
income,
Foreign currency
translation
adjustment......... -- -- -- -- -- (2) -- -- (2)
------ ------ ------ ---- -------- ----- -------- ------- --------
Comprehensive income...... -- -- -- -- -- (2) 26,148 -- 26,146
Conversion of Class B
Common Stock to Class A
Common Stock............ 2,990 (2,990) 30 (30)
Issuance of Class A Common
Stock
Contractual
agreement.......... 227 2 11,250 11,252
Public offering....... 1,150 12 52,580 52,592
Exercise of stock
options................. 68 1 1,309 1,310
Tax benefit relating to
employee stock
options................. 661 661
Treasury Stock acquired... -- -- -- -- -- -- -- (5,250) (5,250)
------ ------ ------ ---- -------- ----- -------- ------- --------
Balance at December 31,
1996...................... 8,974 7,510 90 75 98,958 (2) 70,219 (5,250) 164,090
------ ------ ------ ---- -------- ----- -------- ------- --------
Comprehensive income:
Net income.............. 33,429 33,429
Other comprehensive
income,
Foreign currency
translation
adjustment......... -- -- -- -- -- (25) -- -- (25)
------ ------ ------ ---- -------- ----- -------- ------- --------
Comprehensive income...... -- -- -- -- -- (25) 33,429 -- 33,404
Exercise of stock
options................. 264 3 4,769 4,772
Tax benefit relating to
employee stock
options................. 3,174 3,174
Treasury Stock acquired... -- -- -- -- -- -- -- (1,739) (1,739)
------ ------ ------ ---- -------- ----- -------- ------- --------
Balance at December 31,
1997...................... 9,238 7,510 93 75 106,901 (27) 103,648 (6,989) 203,701
------ ------ ------ ---- -------- ----- -------- ------- --------
Comprehensive income:
Net income.............. 42,674 42,674
Other comprehensive
income,
Foreign currency
translation
adjustment......... -- -- -- -- -- (47) -- -- (47)
------ ------ ------ ---- -------- ----- -------- ------- --------
Comprehensive income...... -- -- -- -- -- (47) 42,674 -- 42,627
Issuance of stock
dividend................ 9,239 7,510 92 75 (167)
Exercise of stock
options................. 133 1 2,020 2,021
Tax benefit relating to
employee stock
options................. -- -- -- -- 1,345 -- -- -- 1,345
------ ------ ------ ---- -------- ----- -------- ------- --------
Balance at December 31,
1998...................... 18,610 15,020 $ 186 $150 $110,099 $ (74) $146,322 $(6,989) $249,694
====== ====== ====== ==== ======== ===== ======== ======= ========
</TABLE>

See accompanying Notes to Consolidated Financial Statements.

F-16
<PAGE> 98

EXPRESS SCRIPTS, INC.

CONSOLIDATED STATEMENT OF CASH FLOWS

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
---------------------------------
1996 1997 1998
-------- -------- ---------
(IN THOUSANDS)
<S> <C> <C> <C>
Cash flows from operating activities:
Net income................................. $ 26,148 $ 33,429 $ 42,674
Adjustments to reconcile net income to net
cash provided by operating activities:
Depreciation and amortization........... 6,707 10,470 27,042
Deferred income taxes................... 317 (834) 10,068
Bad debt expense........................ 1,456 3,680 4,583
Corporate restructuring, less cash
payments of $184...................... 1,467
Tax benefit relating to employee stock
options............................... 661 3,174 1,345
Changes in operating assets and
liabilities, net of changes resulting
from acquisition:
Receivables........................... (48,149) (50,166) (35,083)
Inventories........................... (3,638) (11,444) (15,417)
Prepaid expenses and other assets..... (3,104) 1,722 756
Claims and rebates payable............ 41,055 57,968 107,660
Accounts payable and accrued
expenses........................... 8,410 4,504 (18,521)
-------- -------- ---------
Net cash provided by operating activities.... 29,863 52,503 126,574
-------- -------- ---------
Cash flows from investing activities:
Acquisitions, net of cash acquired......... (940) (460,137)
Short-term investments..................... (54,388) (3,550) 57,938
Purchases of property and equipment........ (9,480) (13,017) (23,853)
-------- -------- ---------
Net cash (used in) investing activities...... (64,808) (16,567) (426,052)
-------- -------- ---------
Cash flows from financing activities:
Proceeds on long-term debt................. -- -- 360,000
Proceeds from stock offering............... 52,592
Deferred financing fees.................... (4,062)
Acquisition of treasury stock.............. (5,250) (1,739)
Exercise of stock options.................. 1,310 4,772 2,021
-------- -------- ---------
Net cash provided by financing activities.... 48,652 3,033 357,959
-------- -------- ---------
Effect of foreign currency translation
adjustment................................. (2) (25) (47)
-------- -------- ---------
Net increase in cash and cash equivalents.... 13,705 38,944 58,434
Cash and cash equivalents at beginning of
year....................................... 11,506 25,211 64,155
-------- -------- ---------
Cash and cash equivalents at end of year..... $ 25,211 $ 64,155 $ 122,589
======== ======== =========
Supplemental data:
Cash paid during the year for:
Income taxes............................... $ 14,544 $ 20,691 $ 17,202
Interest................................... $ 59 $ 225 $ 13,568
</TABLE>

See accompanying Notes to Consolidated Financial Statements.

F-17
<PAGE> 99

EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

ORGANIZATION AND OPERATIONS. Express Scripts, Inc. ("the Company") is a
leading specialty managed care company and (subsequent to its acquisition of
Value Health, Inc. and Managed Prescription Network, Inc. on April 1, 1998, see
Note 2) is the largest full-service pharmacy benefit management ("PBM") company
independent of pharmaceutical manufacturer ownership and drug store ownership in
North America. The Company provides healthcare management and administration
services on behalf of thousands of clients that include health maintenance
organizations, health insurers, third-party administrators, employers and
union-sponsored benefit plans. The Company's fully-integrated PBM services
include network claims processing, mail pharmacy services, benefit design
consultation, drug utilization review, formulary management, disease management,
medical and drug data analysis services, medical information management
services, which include provider profiling and outcome assessments through its
majority-owned Practice Patterns Science, Inc. ("PPS") subsidiary, and informed
decision counseling services through its Express Health LineSM division. The
Company also provides non-PBM services which include infusion therapy services
through its wholly-owned subsidiary IVTx, Inc. ("IVTx"), distribution services
through its Specialty Distribution division, and, prior to September 1, 1998,
provided managed vision care programs through its wholly-owned subsidiary
Express Scripts Vision Corporation ("Vision").

In March 1992, the Company, originally incorporated in Missouri in 1986,
was reincorporated in Delaware and issued an aggregate of 21,000,000 shares of
Class B Common Stock to Sanus Corp. Health Systems ("Sanus") in exchange for the
outstanding shares of its common stock. Sanus at that time was an indirect
subsidiary of New York Life Insurance Company ("NYL"). In April 1992, as a
result of a reorganization, both the Company and Sanus became direct
subsidiaries of NYLIFE HealthCare Management, Inc. ("NYLIFE"). Sanus has since
changed its name to NYLCare Health Plans, Inc. ("NYLCare"). In April 1996,
NYLIFE converted 5,980,000 Class B shares to Class A Common Stock and sold those
shares in a public offering. NYLIFE continues to own all the remaining
outstanding Class B Common Stock of the Company (see Note 11).

BASIS OF PRESENTATION. The consolidated financial statements include the
accounts of the Company and all wholly-owned and majority-owned subsidiaries.
All significant intercompany accounts and transactions have been eliminated.
Certain amounts in prior years have been reclassified to conform with 1998
classifications. The preparation of the consolidated financial statements
conform to generally accepted accounting principles, and require management to
make estimates and assumptions that affect the reported amounts of assets and
liabilities at the date of the financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual amounts could differ
from those estimates and assumptions.

CASH AND CASH EQUIVALENTS. Cash and cash equivalents include cash on hand
and temporary investments in money market funds.

SHORT-TERM INVESTMENTS. Short-term investments consisted of debt
securities with a maturity of less than one year that the Company had the
positive intent and ability to hold to maturity and are reported at amortized
cost.

F-18
<PAGE> 100
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

INVENTORIES. Inventories consist of prescription drugs, vision supplies
and medical supplies that are stated at the lower of first-in first-out cost or
market.

PROPERTY AND EQUIPMENT. Property and equipment is carried at cost and is
depreciated using the straight-line method over estimated useful lives of seven
years for furniture, five years for equipment and purchased computer software
and three years for personal computers. Leasehold improvements are amortized on
a straight-line basis over the term of the lease or the useful life of the
asset, if shorter. Expenditures for repairs, maintenance and renewals are
charged to income as incurred. Expenditures which improve an asset or extend its
estimated useful life are capitalized. When properties are retired or otherwise
disposed of, the related cost and accumulated depreciation are removed from the
accounts and any gain or loss is included in income.

SOFTWARE DEVELOPMENT COSTS. During 1997, the Company early adopted
Statement of Position No. 98-1 ("SOP 98-1"), Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use. SOP 98-1 requires the
capitalization of certain costs associated with computer software developed or
obtained for internal use. Given the limited software developed or obtained for
internal use in 1997, adoption had virtually no effect on the Company's
Consolidated Statement of Operations or its financial position. However, the
impact of SOP 98-1 on an ongoing basis will be determined by the magnitude of
computer software developed or obtained for internal use. Research and
development expenditures relating to the development of software to be marketed
to clients, or to be used for internal purposes, are charged to expense until
technological feasibility is established. Thereafter, the remaining software
production costs up to the date of general release to customers, or to the date
placed into production, are capitalized and included as Property and Equipment.
During 1996, 1997 and 1998, $1,898,000, $1,982,000 and $10,244,000 in software
development costs were capitalized, respectively. Capitalized software
development costs amounted to $5,269,000 and $27,516,000 at December 31, 1997
and 1998, respectively. Amortization of the capitalized amounts commences on the
date of general release to customers, or the date placed into production, and is
computed on a product-by-product basis using the straight-line method over the
remaining estimated economic life of the product but not more than five years.
Reductions, if any, in the carrying value of capitalized software costs to net
realizable value are also included in amortization expense. Amortization expense
in 1996, 1997 and 1998 was $136,000, $622,000 and $1,968,000, respectively.

GOODWILL. Goodwill is amortized on a straight-line basis over periods from
15 to 30 years. The amount reported is net of accumulated amortization of
$251,000 and $8,114,000 at December 31, 1997 and 1998, respectively. The Company
periodically evaluates the carrying value of goodwill for impairment. The
evaluation of impairment is based on expected future operating cash flows on an
undiscounted basis for the operations to which goodwill relates. Impairment
losses, if any, would be determined based on the present value of the cash flows
using discount rates that reflect the inherent risk of the underlying business.
In the opinion of management, no such impairment existed at December 31, 1997 or
1998. Amortization expense, included in selling, general and administrative
expenses, was $42,000, $42,000 and $7,863,000 for the years ended December 31,
1996, 1997 and 1998, respectively.

F-19
<PAGE> 101
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

OTHER INTANGIBLE ASSETS. Other intangible assets (included in other
assets) consist of customer contracts, non-compete agreements and deferred
financing fees and are amortized on a straight-line basis over periods from 2 to
20 years. Amortization expense for customer contracts and non-compete
agreements, included in selling, general and administrative expenses, and for
deferred financing fees, included in interest expense, was $4,320,000 and
$609,000, respectively, for the year ended December 31, 1998.

CONTRACTUAL AGREEMENTS. The Company has entered into corporate alliances
with certain of its clients whereby shares of the Company's Class A Common Stock
were awarded as advance discounts to the clients. The Company accounts for these
agreements as follows:

PRIOR TO DECEMBER 15, 1995 -- For agreements consummated prior to
December 15, 1995, the stock is valued utilizing the quoted market value at
the date the agreement is consummated if the number of shares to be issued
is known. If the number of shares to be issued is contingent upon the
occurrence of future events, the stock is valued utilizing the quoted
market value at the date the contingency is satisfied and the number of
shares is determinable.

BETWEEN DECEMBER 15, 1995 AND NOVEMBER 20, 1997 -- For agreements
entered into between these dates, the Company utilizes the provisions of
Financial Accounting Standards Board Statement 123 "Accounting for
Stock-Based Compensations" ("FAS 123") which requires that all stock issued
to nonemployees be accounted for based on the fair value of the
consideration received or the fair value of the equity instruments issued
instead of the intrinsic value method utilized for stock issued or to be
issued under alliances entered into prior to December 15, 1995. The Company
has adopted FAS 123 as it relates to stock issued or to be issued under the
Premier and Manulife alliances based on fair value at the date the
agreement was consummated.

SUBSEQUENT TO NOVEMBER 20, 1997 -- In November 1997, the Emerging
Issues Task Force reached a consensus that the value of equity instruments
issued for consideration other than employee services should be initially
determined on the date on which a "firm commitment" for performance first
exists by the provider of goods or services. Firm commitment is defined as
a commitment pursuant to which performance by a provider of goods or
services is probable because of sufficiently large disincentives for
nonperformance. The consensus must be applied for all new arrangements and
modifications of existing arrangements entered into from November 20, 1997.
The consensus only addresses the date upon which fair value is determined
and does not change the accounting based upon fair value as prescribed by
FAS 123. No such arrangements have been entered into by the Company
subsequent to November 20, 1997.

Shares issued on the effective date of the contractual agreement are
considered outstanding and included in basic and diluted earnings per share
computations when issued. Shares issuable upon the satisfaction of certain
conditions are considered outstanding and included in basic and dilutive
earnings per share computation when all necessary conditions have been
satisfied by the end of the period. If all necessary conditions have not
been satisfied by the end of the period, the number of shares included in
the dilutive earnings per share computation is based on the number of

F-20
<PAGE> 102
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

shares, if any, that would be issuable if the end of the reporting period
were the end of the contingency period and if the result would be dilutive.
The value of the shares of stock awarded as advance discounts is recorded
as a deferred cost and included in other assets. The deferred cost is
recognized in selling, general and administrative expenses over the period
of the contract.

IMPAIRMENT OF LONG LIVED ASSETS. The Company evaluates whether events and
circumstances have occurred that indicate the remaining estimated useful life of
long lived assets may warrant revision or that the remaining balance of an asset
may not be recoverable. The measurement of possible impairment is based on the
ability to recover the balance of assets from expected future operating cash
flows on an undiscounted basis. Impairment losses, if any, would be determined
based on the present value of the cash flows using discount rates that reflect
the inherent risk of the underlying business. In the opinion of management, no
such impairment existed as of December 31, 1997 or 1998, except for the
write-down of the long-lived assets of Express Scripts Vision Corporation (see
Note 7).

DERIVATIVE FINANCIAL INSTRUMENTS. The Company has entered into an interest
rate swap agreement in order to manage exposure to interest rate risk. The
Company does not hold or issue derivative financial instruments for trading
purposes. The interest rate swap is designated as a hedge of the Company's
variable interest rate payments. Amounts received or paid are accrued as
interest receivable or payable and as interest income or expense. The fair value
of interest rate swap agreements is based on market prices. The fair value
represents the estimated amount the Company would receive/pay to terminate the
agreements taking into consideration current interest rates.

In June 1998, the Financial Accounting Standards Board ("the FASB") issued
Statement of Financial Accounting Standards No. 133, "Accounting for Derivative
Instruments and Hedging Activities" ("FAS 133"). The Statement requires all
derivatives be recognized as either assets or liabilities in the statement of
financial position and measure those instruments at fair value. In addition, the
Statement specifies the accounting for changes in the fair value of a derivative
based on the intended use of the derivative and the resulting designation. FAS
133 is effective for all fiscal quarters of fiscal years beginning after June
15, 1999 and will be applicable to the Company's first quarter of fiscal year
2000. The Company's present interest rate swap (see Note 6) would be considered
a cash flow hedge. Accordingly, the change in the fair value of the swap would
be reported on the balance sheet as an asset or liability. The corresponding
unrealized gain or loss representing the effective portion of the hedge will be
initially recognized in stockholders' equity and other comprehensive income, and
subsequently any changes in unrealized gain or loss from the initial measurement
date will be recognized in earnings concurrent with the interest expense on the
Company's underlying variable rate debt. If the Company had adopted FAS 133 as
of December 31, 1998, the Company would record the unrealized loss of $7,209,000
as a liability and reduction in stockholder's equity and other comprehensive
income.

FAIR VALUE OF FINANCIAL INSTRUMENTS. The carrying value of cash and cash
equivalents, short-term investments, accounts receivable and accounts payable
approximated fair values due to the short-term maturities of these instruments.
The fair value, which approximates the carrying value, of the Company's term
loan facility was estimated using either quoted

F-21
<PAGE> 103
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

market prices or the current rates offered to the Company for debt with similar
maturity. The fair value of the swap ($7,209,000 liability at December 31, 1998)
was based on quoted market price, which reflects the present value of the
difference between estimated future fixed rate payments and future variable rate
receipts.

REVENUE RECOGNITION. Revenues from dispensing prescription and
non-prescription medical products from the Company's mail service pharmacies are
recorded upon shipment. Revenue from sales of prescription drugs by pharmacies
in the Company's nationwide network and pharmacy claims processing revenues are
recognized when the claims are processed. When the Company dispenses
pharmaceuticals to members of health benefit plans sponsored by the Company's
clients or has an independent contractual obligation to pay its network pharmacy
providers for benefits provided to members of its clients' pharmacy benefit
plans, the Company includes payments from plan sponsors for these benefits as
net revenue and ingredient costs or payments to these pharmacy providers in cost
of revenues. If the Company is only administering the plan sponsors' network
pharmacy contracts, or where the Company dispenses pharmaceuticals supplied by
one of the Company's clients, the Company records only the administrative or
dispensing fees derived from the Company's contracts with the plan sponsors as
net revenue.

Client revenue is recognized based upon actual scripts adjudicated and
therefore requires no estimation. Amounts remain unbilled for no more than 30
days based upon the contractual billing schedule agreed with the client. At
December 31, 1997 and 1998, unbilled receivables were $96,644,000 and
$209,334,000, respectively.

COST OF REVENUES. Cost of revenues includes product costs, pharmacy claims
payments and other direct costs associated with dispensing prescriptions and
non-prescription medical products and claims processing operations, offset by
fees received from pharmaceutical manufacturers in connection with the Company's
drug purchasing and formulary management programs. The Company estimates fees
receivable from pharmaceutical manufacturers on a quarterly basis converting
total prescriptions dispensed to estimated rebatable scripts (i.e., those
prescriptions with respect to which the Company is contractually entitled to
submit claims for rebates) multiplied by the contractually agreed manufacturer
rebate amount. Estimated fees receivable from pharmaceutical manufacturers are
recorded when determined by management to be realizable, and realization is not
dependent upon future pharmaceutical sales. Estimates are revised once the
actual rebatable scripts are calculated and rebates are billed to the
manufacturer.

INCOME TAXES. Deferred tax assets and liabilities are recognized based on
temporary differences between financial statement basis and tax basis of assets
and liabilities using presently enacted tax rates.

EARNINGS PER SHARE. Basic earnings per share is computed using the
weighted average number of common shares outstanding during the period. Diluted
earnings per share is computed in the same manner as basic earnings per share
but adds the number of additional common shares that would have been outstanding
for the period if the dilutive potential common shares had been issued. The only
difference between the number of weighted average shares used in the basic and
diluted calculation for all years is stock options and stock warrants granted by
the Company using the "treasury stock" method, amounting to 540,000, 409,000 and
593,000 in 1996, 1997 and 1998, respectively.

F-22
<PAGE> 104
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

FOREIGN CURRENCY TRANSLATION. The financial statements of ESI Canada, Inc.
are translated into U.S. Dollars using the exchange rate at each balance sheet
date for assets and liabilities and a weighted average exchange rate for each
period for revenues, expenses, gains and losses. The functional currency for ESI
Canada, Inc. is the local currency and translation adjustments are recorded
within the other comprehensive income component of stockholders' equity.

EMPLOYEE STOCK-BASED COMPENSATION. The Company accounts for employee stock
options in accordance with Accounting Principles Board No. 25 ("APB 25"),
"Accounting for Stock Issued to Employees." Under APB 25, the Company applies
the intrinsic value method of accounting and, therefore, does not recognize
compensation expense for options granted, because options are only granted at a
price equal to market value at the time of grant. During 1996, FAS 123 became
effective for the Company. FAS 123 prescribes the recognition of compensation
expense based on the fair value of options determined on the grant date.
However, FAS 123 grants an exception that allows companies currently applying
APB 25 to continue using that method. The Company has, therefore, elected to
continue applying the intrinsic value method under APB 25. For companies that
choose to continue applying the intrinsic value method, FAS 123 mandates certain
pro forma disclosures as if the fair value method had been utilized (see Note
12).

COMPREHENSIVE INCOME. During 1998, Statement of Financial Accounting
Standards No. 130 ("FAS 130"), "Reporting Comprehensive Income," became
effective for the Company. FAS 130 requires noncash changes in stockholders'
equity be combined with net income and reported in a new financial statement
category entitled "comprehensive income." Other than net income, the only
component of comprehensive income for the Company is the change in the foreign
currency translation adjustment. The Company has displayed comprehensive income
within the Statement of Changes in Stockholders' Equity.

SEGMENT REPORTING. In June 1997, the FASB issued Statement of Financial
Accounting Standards No. 131, "Disclosures about Segments of an Enterprise and
Related Information" ("FAS 131"). FAS 131 requires that the Company report
certain information, if specific requirements are met, about operating segments
of the Company including information about services, geographic areas of
operation and major customers. The information is to be derived from the
management approach which designates the internal organization that is used by
management for making operating decisions and assessing performance as the
source of the Company's reportable segments. Adoption of FAS 131 did not affect
the Company's results of operations or its financial position but did affect the
disclosure of segment information (see Note 13).

2. ACQUISITION

On April 1, 1998 the Company acquired all of the outstanding capital stock
of Value Health, Inc. and Managed Prescriptions Network, Inc. (collectively, the
"Acquired Entities") from Columbia/HCA Healthcare Corporation ("Columbia") for
approximately $460 million in cash (which includes transactions costs and
executive management severance costs of approximately $15 million),
approximately $360 million of which was obtained through a five-year bank credit
facility (see Note 6) and the remainder from the Company's cash balances and
short term investments. At closing, the Acquired Entities

F-23
<PAGE> 105
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

owned various subsidiaries that now or formerly conducted a PBM business,
commonly known as "ValueRx".

The acquisition has been accounted for using the purchase method of
accounting and the results of operations of the Acquired Entities have been
included in the consolidated financial statements and PBM segment since April 1,
1998. The purchase price has been preliminarily allocated based on the estimated
fair values of net assets acquired at the date of the acquisition. The excess of
purchase price over tangible net assets acquired was originally allocated to
other intangible assets consisting of customer contracts and non-compete
agreements in the amount of $57,653,000 which are being amortized using the
straight-line method over the estimated useful lives of 2 to 20 years and are
included in other assets, and goodwill in the amount of $289,863,000 which is
being amortized using the straight-line method over the estimated useful life of
30 years. In conjunction with the acquisition, the Acquired Entities and their
subsidiaries retained the following liabilities:

<TABLE>
<CAPTION>
(IN THOUSANDS)
<S> <C>
Fair value of assets acquired............................ $ 656,488
Cash paid for the capital stock.......................... (460,137)
---------
Liabilities retained................................ $ 196,351
=========
</TABLE>

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
------------------------
1997 1998
---------- ----------
(IN THOUSANDS EXCEPT PER
SHARE DATA)
<S> <C> <C>
Net revenues.................................. $2,877,906 $3,234,800
Net income.................................... 33,687 42,696
Basic earnings per share...................... 1.03 1.29
Diluted earnings per share.................... 1.02 1.27
</TABLE>

3. CONTRACTUAL AGREEMENTS

On December 31, 1995, the Company entered into a ten-year corporate
alliance with Premier Purchasing Partners, L.P. (formerly, American Healthcare
Systems Purchasing Partners, L.P., the "Partnership"), an affiliate of Premier,
Inc. ("Premier"). Premier is an alliance of healthcare systems resulting from
the merger in 1995 of American Healthcare Systems, Premier Health Alliance and
SunHealth Alliance. Under the terms of the transaction, the Company is Premier's
preferred vendor of pharmacy benefit management

F-24
<PAGE> 106
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

services to Premier's shareholder systems and their managed care affiliates and
will issue shares of its Class A Common Stock as an administrative fee to the
Partnership based on the attainment of certain benchmarks, principally related
to the number of members receiving the Company's pharmacy benefit management
services under the arrangement, and to the achievement of certain joint
purchasing goals. The Company may be required to issue up to 4,500,000 shares to
the Partnership over a period up to the first five years of the agreement if the
Partnership exceeds all benchmarks. Except for certain exemptions from
registration under the Securities Act of 1933 ("the 1933 Act"), any shares
issued to the Partnership cannot be traded until they have been registered under
the 1933 Act and any applicable state securities laws.

In accordance with the terms of the agreement, the Company issued 454,546
shares of Class A Stock to Premier in May, 1996. The shares were valued at
$11,250,000 using the Company's closing stock price on December 31, 1995, the
date the agreement was consummated, and are being amortized over the remaining
term of the agreement. Amortization expense in 1996, 1997 and 1998 was $776,000,
$1,164,000 and $1,164,000, respectively. No additional shares have been earned
by Premier through December 31, 1998.

Effective January 1, 1996, the Company executed a multi-year contract with
The Manufacturers Life Insurance Company ("Manulife"), to introduce pharmacy
benefit management services in Canada. Manulife's Group Benefits Division
continues to work with ESI Canada to provide these services. Under the terms of
the agreement, the Company is the exclusive third-party provider of pharmacy
benefit management services to Manulife's Canadian clients. The Company also
will issue shares of its Class A Common Stock as an advance discount to Manulife
based upon achievement of certain volumes of Manulife pharmacy claims processed
by the Company. No shares will be issued until after the fourth year of the
agreement based on volumes reached in years two through four. The Company
anticipates issuing no more than 474,000 shares to Manulife over a period up to
the first six years of the agreement. Except for certain exemptions from
registration under the 1933 Act, any shares issued to Manulife cannot be traded
until they have been registered under the 1933 Act and any applicable state
securities laws. In accordance with the terms of the agreement, no stock has
been issued since inception.

If Manulife has not exercised an early termination option at the end of the
sixth or tenth year of the agreement, the Company will issue at each of those
times a ten-year warrant as an advance discount to purchase up to approximately
237,000 additional shares of the Company's Class A Common Stock exercisable at
85% of the market price at those times. The actual number of shares for which
such warrant is to be issued is based on the volume of Manulife pharmacy claims
processed by the Company in year six and year ten, respectively.

Pursuant to an agreement with Coventry Corporation, an operator of health
maintenance organizations located principally in Pennsylvania and Missouri, on
January 3, 1995, the Company issued 50,000 shares of Class A Common Stock as an
advance discount to Coventry in a private placement. These shares were valued at
$13.69 per share, the split-adjusted per share market value of the Company's
Class A Common Stock on November 22, 1994, which was the date the agreement was
consummated and the obligation of the parties became unconditional. No revision
of the consideration for the

F-25
<PAGE> 107
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

transaction occurred between November 22, 1994 and January 3, 1995. The shares
issued to Coventry were being amortized over a six-year period. However, due to
Coventry extending the agreement for only two years, as discussed below, instead
of three years, the estimated useful life of the shares issued has been reduced
to five years. Amortization expense was $114,000, $114,000 and $171,000 for each
of the years ended December 31, 1996, 1997 and 1998, respectively. Except for
certain exemptions from registration under the 1933 Act, these shares cannot be
traded until they have been registered under the 1933 Act and any applicable
state securities laws.

Effective January 1, 1998, Coventry renewed the agreement for a two-year
term through December 31, 1999. As part of the agreement, the Company issued
warrants as an advance discount to purchase an additional 50,000 shares of the
Company's Class A Common Stock, exercisable at 90% of the market value at the
time of renewal. During 1998, the Company expensed the advance discount which
represented 10% of the market value.

On October 13, 1992, the Company entered into a five-year arrangement with
FHP, Inc. ("FHP") pursuant to which the Company agreed to provide pharmacy
benefit services to FHP and its members. FHP is an operator of health
maintenance organizations, principally in the western United States. In February
1997, PacifiCare Health Systems, Inc. ("PacifiCare") completed the acquisition
of FHP. As a result of the merger, PacifiCare informed the Company that it would
not enter into a long-term extension of the agreement and reached an agreement
with the Company to phase-out membership starting in July 1997 and continued
through March 1998.

In accordance with the agreement, the Company commenced providing pharmacy
benefit services to FHP and its members on January 4, 1993. On the commencement
date and pursuant to the agreement, the Company issued 400,000 shares of its
Class A Common Stock as advance discounts to FHP in a private placement. These
shares were valued at $4.13 per share, the split-adjusted per share market value
of the Company's Class A shares on October 13, 1992, which was the date the
agreement was consummated and the obligations of the parties became
unconditional. No revision of the consideration for the transaction occurred
between October 13, 1992 and January 4, 1993. The cost of the shares issued to
FHP was amortized over a five-year period ending in 1997. No amortization
expense was recorded in 1998. Amortization expense was $165,000 in 1996 and
$990,000 in 1997.

4. RELATED PARTY TRANSACTIONS

The Company had agreements to provide claims processing services and mail
pharmacy prescription services for NYLCare, in return for which it receives
processing fees and reimbursement for the contracted cost of the claims.
Effective July 15, 1998, NYL consummated the sale of NYLCare to Aetna U.S.
Healthcare, Inc., an unrelated party. Therefore, related party amounts for 1998
represent only the period in which NYL owned NYLCare. Transactions subsequent to
July 15, 1998 have been included in unrelated parties.

F-26
<PAGE> 108
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

The amount receivable from or (due to) related parties comprised the
following:

<TABLE>
<CAPTION>
DECEMBER 31,
1997
--------------
(IN THOUSANDS)
<S> <C>
Receivable from NYLCare................................ $23,709
Due to NYLCare......................................... (7,479)
-------
Total related party receivable......................... $16,230
=======
</TABLE>

Prior to July 15, 1998, the Company was the exclusive provider of pharmacy
benefit management services to NYLCare's managed healthcare subsidiaries,
subject to certain exceptions. The Company's agreement with NYLCare provided
that fees from drug manufacturers whose products are used in the Company's
formularies related to NYLCare subsidiaries was allocated 100% to the Company up
to $400,000 and 75% to NYLCare and 25% to the Company thereafter. The Company
was also the non-exclusive provider of pharmacy benefit management services to
New York Life and Health Insurance Company ("NYLHIC"), a subsidiary of NYLCare.
In 1996 fees from drug manufacturers with respect to this business were
allocated 100% to the Company. Effective January 1, 1997, the Company shared
such fees with NYLHIC on a fixed per script amount which approximates 40% of the
total of such fees.

Such fees allocated to NYLCare and NYLHIC were $7,636,000, $11,690,000 and
$7,257,000 in 1996, 1997 and 1998, respectively, and $3,064,000 in 1996,
$5,803,000 in 1997 and $2,307,000 in 1998 were allocated to the Company and have
been classified in the accompanying consolidated statement of operations as a
reduction of cost of revenues.

As discussed in Note 3, the Company has entered into a ten year corporate
alliance with Premier. Richard Norling is the Chief Operating Officer of Premier
and a member of the Company's Board of Directors. No consideration, monetary or
otherwise, has been exchanged between the Company and Premier between the period
September 1997 and December 1998 (the period during which Premier and the
Company are related parties). The Company may be required to issue additional
shares of its Class A Common Stock to Premier as discussed in Note 3.

Premier is required to promote the Company as the preferred PBM provider to
healthcare entities, plans and facilities which participate in Premier's
purchasing programs. However, all contractual arrangements to provide services
are made directly between the Company and these entities, at varying terms and
independent of any Premier involvement. Therefore, the associated revenues
earned and expenses incurred by the Company are not deemed to be related party
transactions. During 1998, the net revenues that the Company derived from
services provided to the healthcare entities participating in Premier's
purchasing programs was $78,539,000.

F-27
<PAGE> 109
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

5. PROPERTY AND EQUIPMENT

Property and equipment, at cost, consists of the following:

<TABLE>
<CAPTION>
DECEMBER 31,
-------------------
1997 1998
------- --------
(IN THOUSANDS)
<S> <C> <C>
Land............................................. $ -- $ 2,051
Building......................................... 3,076
Furniture........................................ 4,362 8,336
Equipment........................................ 28,924 52,758
Computer software................................ 12,011 37,412
Leasehold improvements........................... 3,934 8,275
------- --------
49,231 111,908
Less accumulated depreciation and amortization... 22,410 34,409
------- --------
$26,821 $ 77,499
======= ========
</TABLE>

6. FINANCING

On April 1, 1998, the Company executed a $440 million credit facility with
a bank syndicate led by Bankers Trust Company, consisting of a $360 million term
loan facility and an $80 million revolving loan facility. The credit facility
expires on April 15, 2003 and is guaranteed by the Company's domestic
subsidiaries other than Practice Patterns Science, Inc. ("PPS"), and Great
Plains Reinsurance Company ("Great Plains") and secured by pledges of 100% (or,
in the case of foreign subsidiaries, 65%) of the capital stock of the Company's
subsidiaries other than PPS and Great Plains. The provisions of this loan
require quarterly interest payments and, beginning in April 1999, semi-annual
principal payments. The interest rate is based on a spread ("Credit Rate
Spread") over several London Interbank Offered Rates ("LIBOR") or base rate
options, depending upon the Company's ratio of earnings before interest, taxes,
depreciation and amortization to debt ("Leverage Ratio"). At December 31, 1998,
the interest rate was 6.0625%, representing a credit rate spread of 0.75% over
the three month LIBOR rate. The credit facility contains covenants that limit
the indebtedness the Company may incur and the amount of annual capital
expenditures. The covenants also establish a minimum interest coverage ratio, a
maximum leverage ratio, and a minimum consolidated net worth. At December 31,
1998, the Company was in compliance with all covenants. In addition, the Company
is required to pay an annual fee depending on the leverage ratio, payable in
quarterly installments, on the unused portion of the revolving loan. The
commitment fee was 22.5 basis points at December 31, 1998. There were no
borrowings at December 31, 1998 under the revolving loan facility. The carrying
amount of the Company's term loan facility approximates fair value.

In conjunction with the credit facility and as part of the Company's policy
to manage interest rate risk, the Company entered into an interest rate swap
agreement ("swap") with The First National Bank of Chicago, a subsidiary of Bank
One Corporation, on

F-28
<PAGE> 110
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

April 3, 1998. At December 31, 1998, the swap had a notional principal amount of
$360 million. Under the terms of the swap, the Company agrees to receive a
floating rate of interest on the amount of the term loan facility based on a
three month LIBOR rate in exchange for payment of a fixed rate of interest of
5.88% per annum. The notional principal amount of the swap amortizes in equal
amounts with the principal balance of the term loan facility. As a result, the
Company has, in effect, converted its variable rate term debt to fixed rate debt
at 5.88% per annum for the entire term of the term loan facility, plus the
Credit Rate Spread.

The following represents the schedule of current maturities for the term
loan facility (amounts in thousands):

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
- -----------------------
<S> <C>
1999............................ $ 54,000
2000............................ 72,000
2001............................ 90,000
2002............................ 96,000
2003............................ 48,000
--------
$360,000
========
</TABLE>

Prior to April 1, 1998, the Company maintained a $25,000,000 unsecured line
of credit with the Mercantile Bank National Association which was terminated
upon the consummation of the Bankers' Trust credit facility. Additionally, the
Company allowed another line of credit in the amount of $25 million to lapse on
October 31, 1997. Terms of the agreements were as follows: interest was charged
on the principal amount outstanding at a rate equal to any of the following
options which the Company, at its option shall select: (i) the bank's "prime
rate", (ii) a floating rate equal to the Bank's cost of funds rate plus 50 basis
points, or (iii) a fixed rate for periods of 30, 60, 90 or 180 days equal to the
LIBOR rate plus 50 basis points. Fees under the agreements on any unused portion
were charged at 10 basis points per year. At December 31, 1997, the Company had
no outstanding borrowings under this agreement, nor did it borrow any amounts
under these agreements during 1997.

7. CORPORATE RESTRUCTURING

During 1998, the Company recorded a pre-tax restructuring charge of
$1,651,000 ($1,002,000 after taxes or $0.03 per basic earnings per share and
$0.03 per dilutive earnings per share) associated with the Company closing the
non-PBM service operations of its wholly-owned subsidiary, PhyNet, Inc., and
transferring certain functions of its Express Scripts Vision Corporation to
another vision care provider.

F-29
<PAGE> 111
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

<TABLE>
<CAPTION>
UTILIZED BALANCE AT
1998 --------------- DECEMBER 31,
CHARGE CASH NONCASH 1998
------ ---- ------- ------------
(AMOUNTS IN THOUSANDS)
<S> <C> <C> <C> <C>
Write-down of long-lived assets....... $1,235 $ -- $704 $531
Employee transition costs for 61
employees........................... 416 184 -- 232
------ ---- ---- ----
$1,651 $184 $704 $763
====== ==== ==== ====
</TABLE>

The restructuring charge includes tangible assets to be disposed of being
written down to their net realizable value, less cost of disposal. Management
expects recovery to approximate its cost of disposal. Considerable management
judgment is necessary to estimate fair value, accordingly, actual results could
vary from such estimates. The Company anticipates completing the remainder of
the restructuring actions by the end of the third quarter of 1999.

8. INCOME TAXES

The income tax provision consists of the following:

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
-----------------------------
1996 1997 1998
------- ------- -------
(IN THOUSANDS)
<S> <C> <C> <C>
Current provision:
Federal........................................ $13,945 $19,048 $20,171
State.......................................... 2,480 2,779 3,049
Foreign........................................ 190 284 278
------- ------- -------
Total current provision..................... 16,615 22,111 23,498
------- ------- -------
Deferred provision:
Federal........................................ 267 (714) 8,694
State.......................................... 50 (120) 1,374
------- ------- -------
Total deferred provision.................... 317 (834) 10,068
------- ------- -------
Total current and deferred provision............. $16,932 $21,277 $33,566
======= ======= =======
</TABLE>

F-30
<PAGE> 112
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

A reconciliation of the statutory federal income tax rate and the effective
tax rate follows (The effect of foreign taxes on the effective tax rate for
1996, 1997 and 1998 is immaterial):

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
-------------------------
1996 1997 1998
----- ----- -----
<S> <C> <C> <C>
Statutory federal income tax rate....................... 35.0% 35.0% 35.0%
State taxes net of federal benefit...................... 4.3 3.8 3.8
Non-deductible amortization of goodwill and customer
contracts............................................. 4.9
Other, net.............................................. -- 0.1 0.3
---- ---- ----
Effective tax rate...................................... 39.3% 38.9% 44.0%
==== ==== ====
</TABLE>

The deferred tax assets and deferred tax liabilities recorded in the
consolidated balance sheet are as follows:

<TABLE>
<CAPTION>
DECEMBER 31,
-----------------
1997 1998
------ -------
(IN THOUSANDS)
<S> <C> <C>
Deferred tax assets:
Allowance for bad debts................................... $1,578 $ 8,013
Inventory costing capitalization and reserves............. 675 684
Accrued expenses.......................................... 512 34,170
Depreciation and property differences..................... 6,808
Non-compete agreements.................................... 933
Other..................................................... 79 17
------ -------
Gross deferred tax assets.............................. 2,844 50,625
Deferred tax liabilities:
Depreciation and property differences..................... (1,166)
Other..................................................... (91) (462)
------ -------
Gross deferred tax liabilities......................... (1,257) (462)
------ -------
Net deferred tax assets..................................... $1,587 $50,163
====== =======
</TABLE>

The Company believes it is probable that the net deferred tax assets,
reflected above, will be realized in future tax returns primarily from the
generation of future taxable income.

9. COMMITMENTS AND CONTINGENCIES

The Company has entered into noncancellable agreements to lease certain
office and distribution facilities with remaining terms from one to eleven
years. Rental expense under the office and distribution facilities leases in
1996, 1997 and 1998 was $2,099,000,

F-31
<PAGE> 113
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

$2,272,000 and $3,876,000, respectively. The future minimum lease payments due
under noncancellable operating leases is as follows:

<TABLE>
<CAPTION>
YEAR ENDED DECEMBER 31,
- -----------------------
<S> <C>
1999.......................... $ 5,555,000
2000.......................... 5,960,000
2001.......................... 5,873,000
2002.......................... 5,758,000
2003.......................... 5,667,000
Thereafter.................... 28,648,000
-----------
$57,462,000
===========
</TABLE>

For the year ended December 31, 1998, approximately 56.2% of the Company's
pharmaceutical purchases were through one wholesaler. The Company believes other
alternative sources are readily available and that no other concentration risks
exist at December 31, 1998.

In the ordinary course of business (which includes the business conducted
by ValueRx prior to the Company's acquisition on April 1, 1998), various legal
proceedings, investigations or claims pending have arisen against the Company
and its subsidiaries (ValueRx continues to be a party to several proceedings
that arose prior to April 1, 1998). The effect of these actions on future
financial results is not subject to reasonable estimation because considerable
uncertainty exists about the outcomes. Nevertheless, in the opinion of
management, the ultimate liabilities resulting from any such lawsuits,
investigations or claims now pending will not materially affect the consolidated
financial position, results of operations, or cash flows of the Company.

10. EMPLOYEE BENEFIT PLANS

RETIREMENT SAVINGS PLAN. The Company offers all of its full-time employees
a retirement savings plan under Section 401(k) of the Internal Revenue Code.
Employees may elect to enter a written salary deferral agreement under which a
maximum of 10% of their salary (effective January 1, 1999 maximum deferral is
12%), subject to aggregate limits required under the Internal Revenue Code, may
be contributed to the plan. The Company matches the first $2,000 of the
employee's contribution for the year. For the year ended December 1996, 1997 and
1998, the Company made contributions of approximately $639,000, $909,000 and,
$1,751,000 respectively.

EMPLOYEE STOCK PURCHASE PLAN. In December 1998, the Company's Board of
Directors approved an employee stock purchase plan, effective March 1, 1999,
that qualifies under Section 423 of the Internal Revenue Code and permits all
employees, excluding certain management level employees, to purchase shares of
the Company's Class A Common Stock. Participating employees may elect to
contribute up to 10% of their salary to purchase common stock at the end of each
six month participation period at a purchase price equal to 85% of the fair
market value of the common stock at the end of the participation period. Class A
Common Stock reserved for future employee purchases under the plan was 250,000
at December 31, 1998.

F-32
<PAGE> 114
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

DEFERRED COMPENSATION PLAN. In December, 1998, the Compensation Committee
of the Board of Directors approved a non-qualified deferred compensation plan
(the "Executive Deferred Compensation Plan"), effective January 1, 1999, that
provides benefits payable to eligible key employees at retirement, termination
or death. Benefit payments are funded by a combination of contributions from
participants and the Company. Participants become fully vested in Company
contributions on the third anniversary of the end of the plan year for which the
contribution is credited to their account. For 1999, the annual Company
contribution will be equal to 6% of each participant's total annual
compensation, with 25% being invested in the Company's Class A Common Stock and
the remaining being allocated to a variety of investment options. As a result,
of the implementation, the Company accrued as compensation expense $797,000 in
1998 as a past service contribution which is equal to 8% of each participant's
total annual cash compensation for the period of the participant's past service
with the Company in a senior executive capacity.

11. COMMON STOCK

The holders of Class A Common Stock have one vote per share, and the
holders of Class B Common Stock have ten votes per share. NYLIFE is the sole
holder of Class B Common Stock. Class B Common Stock converts into Class A
Common Stock on a share-for-share basis upon transfer (other than to New York
Life or its affiliates) and is convertible at any time at the discretion of the
holder. At December 31, 1998, NYLIFE and the holders of Class A Common Stock
have control over approximately 89.0% and 11.0%, respectively, of the combined
voting power of all classes of Common Stock.

In April 1996, NYLIFE converted 5,980,000 shares of Class B Common Stock to
Class A Common Stock and sold the Class A shares in a public offering. The
Company did not receive any proceeds from the sale of these shares. The Company
sold an additional 2,300,000 Class A shares in the same stock offering and
received net proceeds of $52,592,000 after deducting expenses incurred in
connection with the offering.

In October 1998, the Company announced a two-for-one stock split of its
Class A and Class B common stock for stockholders of record on October 20, 1998,
effective October 30, 1998. The split was effected in the form of a dividend by
issuance of one additional share of Class A Common Stock for each share of Class
A Common Stock outstanding and one additional share of Class B Common Stock for
each share of Class B Common Stock outstanding. The earnings per share and the
weighted average number of shares outstanding for basic and diluted earnings per
share have been adjusted for the stock split except on the Consolidated Balance
Sheet and the Consolidated Statement of Changes in Stockholder's Equity.

As of December 31, 1998, the Company had repurchased a total of 475,000
shares of its Class A Common Stock under the open-market stock repurchase
program announced by the Company on October 25, 1996, although no repurchases
occurred during 1998. The Company's Board of Directors approved the repurchase
of up to 1,700,000 shares, and placed no limit on the duration of the program.
Future purchases, if any, will be in such amounts and at such times as the
Company deems appropriate based upon prevailing market and business conditions,
subject to certain restrictions in the credit agreement described above.

F-33
<PAGE> 115
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

As of December 31, 1998, 5,807,000 shares of the Company's Class A Common
Stock have been reserved for issuance to organizations with which the Company
has signed contractual agreements (see Note 3).

12. STOCK-BASED COMPENSATION PLANS

At December 31, 1998, the Company has three fixed stock-based compensation
plans, which are described below.

In April 1992, the Company adopted a stock option plan which it amended in
1995, which provides for the grant of nonqualified stock options and incentive
stock options to officers and key employees of the Company selected by the
Compensation Committee of the Board of Directors. Initially, a maximum of
1,400,000 shares of Class A Common Stock could be issued under the plan. That
amount increases annually each January 1, from January 1, 1993 to and including
January 1, 1999 by 140,000, to a maximum of 2,380,000 shares. By unanimous
written consent dated June 6, 1994, the Board of Directors adopted the Express
Scripts, Inc. 1994 Stock Option Plan, also amended in 1995, 1997 and 1998. A
total of 1,920,000 shares of the Company's Class A Common Stock has been
reserved for issuance under this plan. Under either plan, the exercise price of
the options may not be less than the fair market value of the shares at the time
of grant. The Compensation Committee has the authority to establish vesting
terms, and typically provides that the options vest over a five-year period from
the date of grant. The options may be exercised, subject to a ten-year maximum,
over a period determined by the Committee.

In April 1992, the Company also adopted a stock option plan which was
amended in 1995 and 1996 and provides for the grant of nonqualified stock
options to purchase 48,000 shares to each director who is not an employee of the
Company or its affiliates. A maximum of 384,000 shares of Class A Common Stock
may be issued under this plan at a price equal to fair market value at the date
of grant. The plan provides that the options vest over a three- or five-year
period from the date of grant.

The Company applies APB 25 and related interpretations in accounting for
its plans. Accordingly, no compensation cost has been recognized for its stock
options plans. Had compensation cost for the Company's stock based compensation
plans been determined based on the fair value at the grant dates for awards
under those plans consistent with the method prescribed by FAS 123, the
Company's net income and earnings per share would have been reduced to the pro
forma amounts indicated below. Note that due to the adoption of the methodology
prescribed by FAS 123, the pro forma results shown below only reflect the impact
of options granted in 1996, 1997 and 1998. Because future options may be granted
and vesting typically occurs over a five year period, the pro forma impact shown
for 1996, 1997 and 1998 is not necessarily representative of the impact in
future years.

F-34
<PAGE> 116
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

<TABLE>
<CAPTION>
1996 1997 1998
------- ------- -------
(IN THOUSANDS,
EXCEPT PER SHARE DATA)
<S> <C> <C> <C>
Net income
As reported.................................... $26,148 $33,429 $42,674
Pro forma...................................... 25,235 32,034 38,585
Basic earnings per share
As reported.................................... $ 0.81 $ 1.02 $ 1.29
Pro forma...................................... 0.78 0.98 1.16
Diluted earnings per share
As reported.................................... $ 0.80 $ 1.01 $ 1.27
Pro forma...................................... 0.77 0.97 1.14
</TABLE>

The fair value of options granted (which is amortized to expense over the
option vesting period in determining the pro forma impact), is estimated on the
date of grant using the Black-Scholes multiple option-pricing model with the
following weighted average assumptions:

<TABLE>
<CAPTION>
1996 1997 1998
--------- --------- ---------
<S> <C> <C> <C>
Expected life of option...................... 1-6 years 2-7 years 2-7 years
Risk-free interest rate...................... 5.0-6.5% 5.7-6.6% 4.1-5.9%
Expected volatility of stock................. 30-50% 40% 44%
Expected dividend yield...................... None None None
</TABLE>

A summary of the status of the Company's three fixed stock option plans as
of December 31, 1996, 1997 and 1998, and changes during the years ending on
those dates is presented below.

F-35
<PAGE> 117
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

<TABLE>
<CAPTION>
1996 1997 1998
------------------ ------------------ ------------------
WEIGHTED- WEIGHTED- WEIGHTED-
AVERAGE AVERAGE AVERAGE
EXERCISE EXERCISE EXERCISE
SHARES PRICE SHARES PRICE SHARES PRICE
------ --------- ------ --------- ------ ---------
(SHARE DATA IN THOUSANDS)
<S> <C> <C> <C> <C> <C> <C>
Outstanding at beginning of
year...................... 1,446 $10.30 1,677 $12.56 1,702 $17.21
Granted..................... 642 19.85 602 22.78 1,866 40.65
Exercised................... (131) 9.98 (529) 8.80 (133) 14.71
Forfeited/cancelled......... (280) 18.80 (48) 17.56 (655) 38.82
----- ----- ------
Outstanding at end of
year...................... 1,677 12.56 1,702 17.21 2,780 28.02
===== ===== ======
Options exercisable at year
end....................... 756 641 800
Weighted-average fair value
of options granted during
the year.................. $6.57 $9.91 $18.07
</TABLE>

The following table summarizes information about fixed stock options
outstanding at December 31, 1998:

<TABLE>
<CAPTION>
OPTIONS OUTSTANDING OPTIONS EXERCISABLE
------------------------------------------ -----------------------------
RANGE OF WEIGHTED- WEIGHTED- WEIGHTED-
EXERCISE PRICES NUMBER AVERAGE AVERAGE NUMBER AVERAGE
(SHARE DATA IN OUTSTANDING REMAINING EXERCISE EXERCISABLE EXERCISE
THOUSANDS) AT 12/31/98 CONTRACTUAL LIFE PRICE AT 12/31/98 PRICE
- --------------- ----------- ---------------- --------- ------------ --------------
<S> <C> <C> <C> <C> <C>
$ 3.25 - 15.25....... 561 5.33 $10.09 426 $ 8.71
15.50 - 23.50....... 618 7.15 18.64 278 18.47
24.50 - 35.63....... 1,013 8.99 31.22 96 26.02
37.44 - 42.39....... 218 9.44 39.89
55.13....... 370 9.96 55.13 --
----- ---
$ 3.25 - 55.13....... 2,780 8.01 28.02 800 14.17
===== ===
</TABLE>

13. SEGMENT INFORMATION

The Company is organized on the basis of services offered and has
determined that it has two reportable segments: PBM services and non-PBM
services (defined in Note 1 "organization and operations"). The Company manages
the pharmacy benefit within an operating segment which encompasses a
fully-integrated PBM service. The remaining three operating service lines (IVTx,
Specialty Distribution and Vision) have been aggregated into a non-PBM reporting
segment.

F-36
<PAGE> 118
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

The following table presents information about the reportable segments for
the years ended December 31

<TABLE>
<CAPTION>
PBM NON-PBM TOTAL
---------- ------- ----------
(IN THOUSANDS)
<S> <C> <C> <C>
1996
Net revenues.............................. $ 743,077 $30,538 $ 773,615
Depreciation and amortization expense..... 6,273 434 6,707
Interest income........................... 3,509 3,509
Interest expense.......................... 51 8 59
Income before income taxes................ 39,938 3,142 43,080
Total assets.............................. 286,433 13,992 300,425
Capital expenditures...................... 8,306 1,174 9,480
1997
Net revenues.............................. $1,191,173 $39,461 $1,230,634
Depreciation and amortization expense..... 9,704 766 10,470
Interest income........................... 6,080 1 6,081
Interest expense.......................... 209 16 225
Income before income taxes................ 52,529 2,177 54,706
Total assets.............................. 385,330 17,178 402,508
Capital expenditures...................... 10,782 2,235 13,017
1998
Net revenues.............................. $2,765,111 $59,761 $2,824,872
Depreciation and amortization
expense(1).............................. 25,540 983 26,433
Interest income........................... 7,235 1 7,236
Interest expense(1)....................... 20,218 12 20,230
Income before income taxes................ 70,107 6,133 76,240
Total assets.............................. 1,068,715 26,746 1,095,461
Capital expenditures...................... 23,432 421 23,853
</TABLE>

- -------------------------

(1) The amortization expense for deferred financing fees ($609 in 1998) is
included in interest expense on the Consolidated Statement of Operations and
in depreciation and amortization on the Consolidated Statement of Cash
Flows.

F-37
<PAGE> 119
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

14. QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table summarizes the quarterly financial data for the years
ended December 31, 1997 and 1998:

<TABLE>
<CAPTION>
EARNINGS
SELLING, PER SHARE
NET COST OF GENERAL & OPERATING NET ---------------
REVENUES REVENUES ADMINISTRATIVE INCOME INCOME BASIC DILUTED
-------- -------- -------------- --------- ------- ----- -------
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<S> <C> <C> <C> <C> <C> <C> <C>
1997
March 31, 1997....... $261,990 $237,298 $13,298 $11,394 $ 7,641 $0.23 $0.23
June 30, 1997........ 300,515 274,906 13,733 11,876 8,131 0.25 0.25
September 30, 1997... 319,937 291,590 15,758 12,589 8,613 0.26 0.26
December 31, 1997.... 348,192 315,373 19,828 12,991 9,044 0.27 0.27
1998
March 31, 1998....... $371,362 $338,492 $18,826 $14,044 $ 9,878 $0.30 $0.29
June 30, 1998........ 807,406 743,557 39,266 22,932 9,568 0.29 0.28
September 30, 1998... 807,319 738,544 43,153 25,622 11,303 0.34 0.34
December 31, 1998.... 838,784 764,403 47,745 26,636 11,924 0.36 0.35
</TABLE>

15. SUBSEQUENT EVENT -- POTENTIAL ACQUISITION

On February 9, 1999, the Company announced that it had executed a
definitive agreement to purchase Diversified Pharmaceutical Services, Inc
("DPS"), a wholly-owned subsidiary of SmithKline Beecham Corporation. Under the
terms of the agreement, the Company will pay cash in the amount of $700 million
for the stock of DPS. The Company expects to finance the purchase through a $1.1
billion bank credit facility consisting of an $800 million term facility and a
$300 million revolving credit facility. In addition, the Company has secured
bridge financing in the amount of $150 million to facilitate closing. The loan
proceeds will be used towards the $700 million purchase price and acquisition
related costs, and will also be used to refinance the Company's existing $440
million bank credit facility (see Note 6) and provide for working capital needs,
if any. The Company expects to issue $350 million in Class A Common Stock
through an offering. Net proceeds from the offering will be used to retire the
$150 million bridge facility and a portion of the $800 million term facility.
The acquisition will be accounted for under the purchase method of accounting
and is subject to customary closing conditions including required governmental
approvals and consummation and funding of the bank credit facility. The Company
anticipates the transaction will close in the second quarter of 1999.

Should the transaction close and the Company refinance its existing $440
million bank credit facility, the remaining unamortized deferred financing fees
will be expensed as an extraordinary item. The Company anticipates maintaining
its existing interest rate swap in place to hedge the future variable interest
rate payments on $360 million of the new $1.1 billion bank credit facility.

The following unaudited pro forma information presents a summary of
combined results of operations of the Company, the Acquired Entities and DPS as
if the acquisitions

F-38
<PAGE> 120
EXPRESS SCRIPTS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

and related financing, including the equity offering, had occurred at the
beginning of the period presented, along with certain pro forma adjustments to
give effect to amortization of goodwill, other intangible assets, interest
expense on acquisition debt and other adjustments. The pro forma financial
information is not necessarily indicative of the results of operations as they
would have been had the transaction been effected on the assumed dates. Included
in the pro forma information are integration costs incurred by the Company for
the Acquired Entities that are being reported within selling, general and
administrative expenses in the statement of operations.

<TABLE>
<CAPTION>
YEAR ENDED
DECEMBER 31, 1998
---------------------
(IN THOUSANDS, EXCEPT
PER SHARE DATA)
<S> <C>
Net revenues................................ $3,449,649
Net income.................................. 51,130
Basic earnings per share.................... 1.36
Diluted earnings per share.................. 1.34
</TABLE>

F-39
<PAGE> 121

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

(A WHOLLY OWNED SUBSIDIARY OF SMITHKLINE BEECHAM CORPORATION)

UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 1999 AND

FOR THE THREE MONTHS ENDED MARCH 31, 1999

F-40
<PAGE> 122

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>
DECEMBER 31, MARCH 31,
1998 1999
------------ ----------
(IN THOUSANDS)
<S> <C> <C>
ASSETS
Current assets:
Cash............................................... $ 1,686 $ --
---------- ----------
Receivables:
SmithKline Beecham Corporation.................. 371,827 --
Accounts receivable, less allowance for doubtful
accounts of $2,147 and $1,317, respectively... 82,746 120,884
---------- ----------
Total receivables.......................... 454,573 120,884
Other current assets............................... 3,849 2,904
---------- ----------
Total current assets....................... 460,108 123,788
Furniture and equipment, net......................... 27,394 27,894
Goodwill and intangible assets, net.................. 832,497 821,767
Deferred tax asset................................... 430,374 427,278
Other assets......................................... 7,122 --
---------- ----------
Total assets............................... $1,757,495 $1,400,727
========== ==========
LIABILITIES AND STOCKHOLDER'S EQUITY
Current liabilities:
Rebates and pharmacy claims payable................ $ 191,727 $ 232,666
Accrued expenses and deferred revenue.............. 53,154 35,609
---------- ----------
Total current liabilities.................. 244,881 268,275
---------- ----------
Other liabilities.................................... -- 50
---------- ----------
STOCKHOLDER'S EQUITY:
Common stock, $.01 par value, 1,000 shares
authorized, 100 shares issued and outstanding... -- --
Additional paid-in capital......................... 2,110,981 1,725,475
Accumulated deficit................................ (598,367) (593,073)
---------- ----------
Total stockholder's equity...................... 1,512,614 1,132,402
---------- ----------
Total liabilities and stockholder's
equity.................................. $1,757,495 $1,400,727
========== ==========
</TABLE>

See accompanying notes to unaudited condensed consolidated financial statements.

F-41
<PAGE> 123

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31,
------------------
1998 1999
------- -------
(IN THOUSANDS)
<S> <C> <C>
Net revenues............................................. $47,650 $65,366
------- -------
Operating expenses:
Other selling, general and administrative.............. 35,318 44,529
Depreciation and amortization.......................... 19,727 12,880
------- -------
Total operating expenses............................ 55,045 57,409
------- -------
Operating income (loss).................................. (7,395) 7,957
------- -------
Equity in loss of joint venture.......................... (431) (359)
Royalty income........................................... 1,145 792
------- -------
(Loss) income before income taxes...................... (6,681) 8,390
Provision (benefit) for income taxes..................... (2,338) (3,096)
------- -------
Net (loss) income........................................ $(4,343) $ 5,294
======= =======
</TABLE>

See accompanying notes to unaudited condensed consolidated financial statements.

F-42
<PAGE> 124

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES
IN STOCKHOLDERS' EQUITY

<TABLE>
<CAPTION>
COMMON STOCK ADDITIONAL
------------------ PAID-IN ACCUMULATED
SHARES AMOUNT CAPITAL DEFICIT TOTAL
------ ------ ---------- ----------- -----
(IN THOUSANDS, EXCEPT SHARE DATA)
<S> <C> <C> <C> <C> <C>
Balance at December 31, 1998...... 100 $ -- $2,110,981 $(598,367) $1,512,614
Net income...................... 5,294 5,294
Allocation of expenses paid by
SmithKline Beecham
Corporation................... 642 642
SmithKline Beecham Corporation
receivable settled............ -- -- (386,148) -- (386,148)
--- --------- --------- --------- ---------
Balance at March 31, 1999......... 100 $ -- $1,725,475 $(593,073) $1,132,402
=== ========= ========= ========= =========
</TABLE>

See accompanying notes to unaudited condensed consolidated financial statements.

F-43
<PAGE> 125

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31,
-------------------
1998 1999
------- --------
(IN THOUSANDS)
<S> <C> <C>
Cash flows from operating activities:
Net (loss) income....................................... $(4,343) $ 5,294
Adjustments to reconcile net income to net cash provided
by operating activities:
Depreciation and amortization........................ 19,727 12,880
Allocation of expenses paid by SB Corp............... 642 642
Provision for bad debts.............................. 1,659 (500)
Deferred income taxes................................ (2,338) 3,096
Equity loss in joint venture......................... 431 359
Net changes in operating assets and liabilities...... (54,111) (18,585)
------- --------
Net cash (used in) provided by operating activities....... (38,333) 3,186
------- --------
Cash flows from investing activities:
Decrease (increase) in receivable from SmithKline
Beecham Corporation.................................. 41,471 (2,222)
Purchases of property and equipment..................... (4,395) (2,650)
Other................................................... 1,992 --
------- --------
Net cash used in investing activities..................... 39,068 (4,872)
------- --------
Net increase (decrease) in cash........................... 735 (1,686)
Cash at beginning of period............................... 619 1,686
------- --------
Cash at end of period..................................... $ 1,354 $ --
======= ========
</TABLE>

See accompanying notes to unaudited condensed consolidated financial statements.

F-44
<PAGE> 126

DIVERSIFIED PHARMACEUTICAL SERVICES, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Financial statement note disclosures, normally included in financial
statements prepared in conformity with generally accepted accounting principles,
have been omitted in this consolidated condensed financial statement pursuant to
the Form 10-Q Rules and Regulations of the Securities and Exchange Commission.
However, in the opinion of the Company, the disclosures contained herein are
adequate to make the information presented not misleading when read in
conjunction with the notes to financial statements of diversified Pharmaceutical
Services, Inc. and Subsidiary ("Diversified"), a wholly owned subsidiary of
SmithKline Beecham Corporation ("SB Corp") for the Year Ended December 31, 1998
included in this prospectus.

In the opinion of the Company, the accompanying unaudited condensed
consolidated financial statements reflect all adjustments (consisting of only
normal recurring adjustments) necessary to present fairly the Unaudited
Condensed Consolidated Balance Sheet at March 31, 1999, the Unaudited Condensed
Consolidated Statement of Operations for the three months ended March 31, 1998,
and 1999, and the Unaudited Condensed Consolidated Statement of Cash Flows for
the three months ended March 31, 1998, and 1999.

2. RECEIVABLE FROM SB CORP

As a result of SB Corp's pending sale of Diversified (see Note 4), the
receivable from SB Corp of $386,148 has been settled and diversified eliminated
the receivable against additional paid-in capital.

3. DIVERSIFIED PRESCRIPTION DELIVERY L.L.C. JOINT VENTURE

As a result of SB Corp's pending sale of Diversified (see Note 4),
Diversified's investment in Diversified Prescription Delivery L.L.C. ("DPD") of
$8,836 was transferred to the receivable from SB Corp during the first quarter
of 1999. Additionally, the net receivable from DPD of $4,010 was transferred to
the receivable from SB Corp during the first quarter of 1999.

4. SUBSEQUENT EVENT

On April 1, 1999, SB Corp. consummated the sale of the outstanding common
stock of Diversified to Express Scripts, Inc. for $700 million in cash, such
amount being subject to adjustment based upon the amount of working capital of
Diversified at closing.

F-45
<PAGE> 127

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY
(A WHOLLY OWNED SUBSIDIARY OF SMITHKLINE BEECHAM CORPORATION)

FINANCIAL STATEMENTS

AS OF DECEMBER 31, 1997 AND 1998 AND
FOR THE YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998

F-46
<PAGE> 128

REPORT OF INDEPENDENT ACCOUNTANTS

To the Stockholder of
Diversified Pharmaceutical Services, Inc.:

In our opinion, the accompanying balance sheets and the related statements
of operations, stockholder's equity and cash flows, after the restatements
described in Notes 2 and 12, with which we concur, present fairly, in all
material respects, the financial position of Diversified Pharmaceutical
Services, Inc. and subsidiary (the "Company"), wholly owned by SmithKline
Beecham Corporation, at December 31, 1997 and 1998, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1998 in conformity with generally accepted accounting principles.
These financial statements are the responsibility of the Company's management;
our responsibility is to express an opinion on these financial statements based
on our audits. We conducted our audits of these statements in accordance with
generally accepted auditing standards which require that we plan and perform the
audit to obtain reasonable assurance about whether the financial statements are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by
management, and evaluating the overall financial statement presentation. We
believe that our audits provide a reasonable basis for the opinion expressed
above.

/s/ PRICEWATERHOUSECOOPERS LLP

PricewaterhouseCoopers LLP

Minneapolis, Minnesota
February 26, 1999, except
Note 12 for which the date
is March 1, 1999

F-47
<PAGE> 129

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

BALANCE SHEETS
AS OF DECEMBER 31, 1997 AND 1998

<TABLE>
<CAPTION>
1997 1998
-------------- --------------
<S> <C> <C>
ASSETS
Cash........................................... $ 618,859 $ 1,685,600
Receivables:
SmithKline Beecham Corporation............... 343,589,242 371,827,141
Accounts receivable, net..................... 81,452,718 82,746,292
-------------- --------------
Total receivables......................... 425,041,960 454,573,433
Deferred tax asset............................. 1,400,000 1,880,237
Other current assets........................... 2,510,254 1,968,869
-------------- --------------
Total current assets...................... 429,571,073 460,108,139
Investment in joint venture.................... 8,534,000 6,610,471
Furniture and equipment, net................... 13,505,083 14,910,412
Internal use software, net..................... -- 12,482,501
Goodwill and intangible assets, net............ 1,998,439,000 832,497,469
Notes receivable............................... 511,597 511,597
Deferred tax asset............................. 42,029,677 430,374,187
-------------- --------------
Total assets.............................. $2,492,590,430 $1,757,494,776
============== ==============
LIABILITIES AND STOCKHOLDER'S EQUITY
Liabilities:
Rebates and pharmacy claims payable.......... 206,053,314 191,726,763
Accrued expenses............................. 52,876,383 51,779,710
Deferred revenues............................ 1,384,873 1,374,076
-------------- --------------
Total current liabilities................. 260,314,570 244,880,549
Commitments and contingencies
Stockholder's equity:
Common stock, $.01 par value; 1,000 shares
authorized, 100 shares issued and
outstanding............................... 1 1
Additional paid-in capital................... 2,108,416,415 2,110,981,415
Retained earnings (Accumulated deficit)...... 123,859,444 (598,367,189)
-------------- --------------
Total stockholder's equity................ 2,232,275,860 1,512,614,227
-------------- --------------
Total liabilities and stockholder's
equity.................................. $2,492,590,430 $1,757,494,776
============== ==============
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-48
<PAGE> 130

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

STATEMENTS OF OPERATIONS
FOR THE YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998

<TABLE>
<CAPTION>
1996 1997 1998
------------ ------------ ---------------
<S> <C> <C> <C>
Net revenues......................... $692,046,016 $228,616,730 $ 214,848,958
------------ ------------ ---------------
Operating expenses:
Pharmacy claims, net............... 490,370,203 58,685,047 548,258
Other selling, general and
administrative.................. 155,947,282 146,839,849 154,335,922
Depreciation and amortization...... 78,791,400 79,149,287 80,141,066
Cost of pharmaceutical
distribution.................... 48,466,917 -- --
Write down of assets............... -- -- 1,092,183,531
------------ ------------ ---------------
Total operating expenses........ 773,575,802 284,674,183 1,327,208,777
------------ ------------ ---------------
Operating loss....................... (81,529,786) (56,057,453) (1,112,359,819)
Gain on transfer of subsidiary net
assets to joint venture............ 19,849,000 -- --
Equity in loss of joint venture...... (631,480) (4,200,231) (1,923,529)
Royalty income (Note 2).............. 695,054 4,010,792 3,231,968
Other income......................... 432,087 -- --
------------ ------------ ---------------
Loss before income taxes........... (61,185,125) (56,246,892) (1,111,051,380)
Benefit for income taxes............. 21,047,574 20,960,217 388,824,747
------------ ------------ ---------------
Net loss............................. $(40,137,551) $(35,286,675) $ (722,226,633)
============ ============ ===============
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-49
<PAGE> 131

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

STATEMENTS OF STOCKHOLDER'S EQUITY
FOR THE YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998

<TABLE>
<CAPTION>
RETAINED
COMMON STOCK ADDITIONAL EARNINGS
--------------- PAID-IN (ACCUMULATED
SHARES AMOUNT CAPITAL DEFICIT) TOTAL
------ ------ -------------- ------------- --------------
<S> <C> <C> <C> <C> <C>
Balances, December 31, 1995...... 100 $1 $2,105,981,415 $ 199,283,670 $2,305,265,086
Net loss......................... -- -- (40,137,551) (40,137,551)
Allocation of expenses paid by SB
Corp (Note 12)................. -- 1,286,000 -- 1,286,000
--- -- -------------- ------------- --------------
Balances, December 31, 1996...... 100 1 2,107,267,415 159,146,119 2,266,413,535
Net loss......................... -- -- (35,286,675) (35,286,675)
Allocation of expenses paid by SB
Corp (Note 12)................. -- 1,149,000 -- 1,149,000
--- -- -------------- ------------- --------------
Balances, December 31, 1997...... 100 1 2,108,416,415 123,859,444 2,232,275,860
Net loss......................... -- -- (722,226,633) (722,226,633)
Allocation of expenses paid by SB
Corp (Note 12)................. -- 2,565,000 -- 2,565,000
--- -- -------------- ------------- --------------
Balances, December 31, 1998...... 100 $1 $2,110,981,415 $(598,367,189) $1,512,614,227
=== == ============== ============= ==============
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-50
<PAGE> 132

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

STATEMENTS OF CASH FLOWS
INCREASE (DECREASE) IN CASH
FOR THE YEARS ENDED DECEMBER 31, 1996, 1997 AND 1998

<TABLE>
<CAPTION>
1996 1997 1998
------------- ------------ --------------
<S> <C> <C> <C>
Operating activities:
Net loss.................................... $ (40,137,551) $(35,286,675) $ (722,226,633)
Adjustments to reconcile net loss to net
cash provided by operating activities:
Deferred income taxes.................... (21,047,574) (20,960,217) (388,824,747)
Allocation of expenses paid by SB Corp... 1,286,000 1,149,000 2,565,000
Depreciation and amortization............ 78,791,400 79,149,287 80,141,066
Provision for bad debts.................. 1,157,416 150,679 1,891,782
Loss on disposal of furniture and
equipment.............................. 269,150 -- 1,355,731
Write down of assets..................... -- -- 1,092,183,531
Net gain on transfer of subsidiary net
assets to joint venture................ (19,849,000) -- --
Equity in loss of joint venture.......... 631,480 4,200,231 1,923,529
Changes in assets and liabilities, net of
effects of assets transferred to joint
venture:
Accounts receivable...................... (17,410,844) 134,433,011 (3,185,356)
Other current assets..................... (3,675,967) 1,441,311 541,385
Pharmacy claims and rebates payable...... 128,821,042 (82,869,288) (14,326,551)
Accrued expenses......................... 2,858,448 13,575,278 (1,096,673)
Deferred revenues........................ (23,085,416) (2,504,104) (10,797)
------------- ------------ --------------
Net cash provided by operating
activities............................. 88,608,584 92,478,513 50,931,267
------------- ------------ --------------
Investing activities:
Increase in receivable from SmithKline
Beecham Corporation...................... (103,708,181) (88,017,729) (28,237,899)
Purchase of furniture and equipment, net of
effects of assets transferred to joint
venture.................................. (12,081,717) (1,390,225) (7,801,578)
Proceeds received in connection with
establishing joint venture............... 29,214,000 -- --
Contribution to joint venture............... (1,500,000) (2,500,000) --
Issuance of notes receivable................ -- (511,597) --
Internal use software costs................. -- -- (14,130,045)
Proceeds received on disposal of furniture
and equipment............................ -- -- 304,996
------------- ------------ --------------
Net cash used in investing activities.... (88,075,898) (92,419,551) (49,864,526)
------------- ------------ --------------
Net increase in cash.......................... 532,686 58,962 1,066,741
Cash, as of beginning of year................. 27,211 559,897 618,859
------------- ------------ --------------
Cash, as of end of year....................... $ 559,897 $ 618,859 $ 1,685,600
============= ============ ==============
</TABLE>

The accompanying notes are an integral part of the financial statements.

F-51
<PAGE> 133

DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS

1. ORGANIZATION AND BACKGROUND:

Diversified Pharmaceutical Services, Inc. (Diversified) is a wholly owned
subsidiary of SmithKline Beecham Corporation (SB Corp). SB Corp is a wholly
owned subsidiary of SmithKline Beecham plc (SB plc). Diversified's services
,which are all in a single operating segment, include the establishment of a
pharmacy provider network, installation and operation of a pharmacy claims
processing system, establishment and administration of a manufacturer rebate
program with respect to brand-name prescription drug products, and maintenance
of a prescription information database. In addition, Diversified provides drug
formulary development and maintenance along with maximum allowable costs (MAC)
lists for generic drugs. Diversified also assists its clients in utilization
management. From March 6, 1995 to October 28, 1996, Diversified's services also
included dispensing (through a wholly owned subsidiary, Diversified Prescription
Delivery, a mail service pharmacy subsidiary) medications and products to
patients for outpatient usage. On February 9, 1999, SB Corp entered into an
agreement to sell Diversified (see note 11).

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

BASIS OF PRESENTATION:

Financial Statements:

On May 27, 1994, SB Corp acquired the common stock of Diversified from
United Healthcare Corporation (UHC) for $2.3 billion in cash (the Acquisition).
Identifiable intangible assets, primarily existing customer relationships, of
approximately $0.4 billion recorded in connection with the Acquisition are being
amortized over their estimated useful lives ranging from 5 to 16 years. Goodwill
of approximately $1.8 billion recorded in connection with the Acquisition is
being amortized over 40 years.

The financial statements as of December 31, 1997 and for the years ended
December 31, 1997 and 1996, have been restated to reflect the historical cost
basis of SB Corp and give effect to the impact of purchase accounting as a
result of the Acquisition. Previously issued financial statements do not give
effect to the Acquisition. The restatement resulted in an increase in total
equity of $2,147,376,886, $2,094,216,360 and $2,039,416,427 at December 31,
1995, 1996 and 1997, respectively, and a decrease in net income of $46,682,933
in both 1997 and 1996.

In connection with the Acquisition, Diversified and SB Corp entered into a
six-year cooperation agreement with UHC, under which UHC will provide certain
data and provide support for outcomes research and other services. UHC will
receive a fixed percentage of Diversified's total annual formulary-managed drug
expenditures as a fee under this agreement. Such fees, included in other
selling, general and administrative expenses, were approximately $27.0 million,
$28.0 million and $33.8 million in 1996, 1997 and 1998, respectively. In
addition, UHC agreed to use Diversified as the pharmacy benefit manager for all
of UHC's health plans for the term of the aforementioned cooperation agreement.

Acquisition of DPD:

On March 6, 1995, Diversified acquired all the common stock of Prescription
Delivery Services, a mail service pharmacy provider for approximately $15.0
million in cash. In connection with this acquisition, SB Corp made a capital
contribution of $15.0 million to

F-52
<PAGE> 134
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

Diversified to fund the purchase of the net assets of Prescription Delivery
Services. The acquired entity was subsequently named Diversified Prescription
Delivery (DPD), and was reported as a wholly owned subsidiary of Diversified.

DPD Joint Venture:

On October 28, 1996, Diversified entered into an agreement (the Agreement)
with another entity (the joint owner) to form and to jointly own and operate a
limited liability company to engage in the mail service pharmacy business. The
name of the new company is Diversified Prescription Delivery L.L.C. (the Joint
Venture). Concurrent with the execution of the Agreement, Diversified
transferred all the assets and liabilities of DPD plus $1.5 million of cash to
the Joint Venture. Simultaneously, the joint owner transferred certain
contracts, bids and liabilities plus $30.7 million of cash to the Joint Venture.
In accordance with the terms of the Limited Liability Company Agreement, the
Joint Venture then paid $29.2 million of cash to Diversified. Diversified and
the joint owner share management control and profits or losses equally. In
substance, Diversified sold half of its interest in the net assets of DPD to the
joint owner for $29.2 million and, accordingly, recorded a gain on the transfer
of subsidiary net assets to the Joint Venture of $19.8 million.

The Diversified investment in this Joint Venture is being accounted for
using the equity method of accounting. Diversified's 50% share of the net losses
of the Joint Venture for the period from October 28, 1996 through December 31,
1996 and for the years ended December 31, 1997 and 1998, have been included in
equity in loss of joint venture on the statements of operations.

On October 28, 1996, Diversified also entered into a Trademark License
Agreement and a Royalty Agreement with the Joint Venture to allow it to use
certain trademarks owned by Diversified. Pursuant to this Trademark License
Agreement, the Joint Venture has agreed to pay Diversified between 2 and 4
percent of certain revenues, as defined.

Unaudited condensed financial information of the Joint Venture as of
December 31, 1997 and 1998 and for the years then ended is summarized below (in
thousands):

<TABLE>
<CAPTION>
1997 1998
------- -------
<S> <C> <C>
Current assets..................................... $12,081 $15,587
Noncurrent assets.................................. 16,043 11,270
Current liabilities................................ 10,033 5,901
Members' equity.................................... 17,068 13,221
DPD net loss....................................... 8,400 3,847
</TABLE>

DPD's net loss for the period from October 28, 1996 through December 31,
1996 was approximately $1,263,000.

FURNITURE AND EQUIPMENT:

Furniture, fixtures and computer equipment are recorded at cost. The cost
of additions and improvements are capitalized, while maintenance and repairs are
expensed as incurred.

F-53
<PAGE> 135
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

Depreciation is provided for using the straight-line method over the following
estimated useful lives:

<TABLE>
<S> <C>
Furniture and fixtures............................ 5 - 10 years
Computer equipment................................ 3 years
</TABLE>

Leasehold improvements are stated at cost. These amounts are amortized over
the estimated useful life of leasehold improvements or the remaining term of the
lease, whichever is shorter.

INTERNAL USE SOFTWARE:

Software development costs are costs incurred in connection with the
development of computer software applications to support management services
provided by Diversified. Such costs, which include dedicated staff costs and
third party costs pursuant to the development of computer software applications,
are amortized over their estimated useful lives of four years, beginning when
the related application has been implemented.

Effective January 1, 1998, Diversified has adopted the provisions of
Statement of Position 98-1, "Accounting for the Costs of Computer Software
Developed or Obtained for Internal Use" (SOP 98-1). SOP 98-1 requires the
capitalization of certain costs incurred in connection with developing or
obtaining internal use software and provides guidance for determining whether
computer software is for internal use. All software development costs incurred
in 1996 and 1997 totaling approximately $16.0 million and $13.9 million,
respectively, were expensed. During 1998, approximately $14.1 million of
internal use software development costs were capitalized pursuant to SOP 98-1.

REBATES PAYABLE:

Rebates payable represent amounts due to customers who participate in
Diversified's drug manufacturer rebate programs. These amounts are distributed
to customers periodically according to contracts and allocation schedules
established by Diversified. The estimates of the resulting liability is
continually reviewed and updated, and any adjustments resulting therefrom are
reflected in current operations.

REVENUE AND EXPENSE RECOGNITION:

Diversified provides pharmacy benefit management services as described in
Note 1 to numerous customers throughout the United States.

Pharmacy Services -- Pharmacy service revenues are received from customers
for providing pharmacy benefits on a guaranteed total cost (capitated) basis.
These revenues are recognized either on a per claim basis or per member, per
month basis over the life of the contract period. Revenues from certain pharmacy
services billed one month prior to service delivery are deferred until the next
month. As of December 31, 1998, there were no capitated contracts outstanding.

Management Services -- Management services revenues include administrative
fees for services provided to customers and drug manufacturers.

F-54
<PAGE> 136
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

Management services to customers include pharmacy claims processing and
other administrative services provided on a fee for service basis. Revenues
relating to these services are recognized according to the terms of the
applicable contracts, either on a per claim basis or per member, per month
basis. Amounts received from customers and paid out by Diversified for pharmacy
claims reimbursements, other than those under capitated arrangements, are
excluded from revenues and expenses.

Management services provided to drug manufacturers include various services
relating to administration of the manufacturer rebate program. Revenues relating
to these services are recognized as earned based on detailed drug utilization
data. Rebates payable to customers in accordance with the applicable contracts
are excluded from revenues and expenses.

Pharmaceutical Distribution -- Pharmaceutical distribution revenues
represent mail service pharmacy revenues earned prior to October 28, 1996 that
were recognized when medication and products were shipped.

Pharmacy Claims Expense -- Pharmacy claims expense includes claims paid,
claims in process and pending, and estimated unreported claims and charges by
pharmacies for services rendered to enrolled members under capitation
arrangements during the period.

Cost of Pharmaceutical Distribution -- Cost of pharmaceutical distribution
includes the costs of medication and products distributed through the mail
service pharmacy operations prior to October 28, 1996. Such costs were
recognized when medication and products were shipped.

RECEIVABLE FROM SB CORP:

Diversified participates in SB Corp's consolidated cash pool whereby SB
Corp sweeps Diversified's cash accounts on a daily basis in accordance with SB
Corp cash management practices.

ACCOUNTS RECEIVABLE:

Accounts receivable, including unbilled amounts, represent amounts due from
manufacturers for administrative fees and rebates payable under Diversified's
rebate program and customer fee for service receivables. At December 31, 1997
and 1998, unbilled accounts receivable were $19.1 million and $32.9 million,
respectively.

INCOME TAXES:

Diversified's operating results are included in the consolidated federal
income tax return of SB Corp. However, for financial reporting purposes,
Diversified's provision (benefit) for income taxes are computed on a separate
entity basis. Income tax expense (benefit) represents the taxes that would have
been payable (receivable) for the year and the change in deferred tax assets and
liabilities during the year.

Deferred income taxes are recorded to reflect the tax consequences in
future years of differences between tax basis of assets and liabilities and
their financial reporting amounts at year end based on enacted tax laws and
statutory tax rates applicable to the periods in which the differences are
expected to affect taxable income.

F-55
<PAGE> 137
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

USE OF ESTIMATES:

The preparation of the financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the dates of the financial
statements and the reported amounts of revenues and expenses during the
reporting periods. Actual results could differ from those estimates. The most
significant areas which require the use of management estimates relate to
manufacturer agreements and related accounts receivable. Recognition of such
revenues requires the use of estimated pharmaceutical and fulfillment volumes
and mix data, until actual volume and mix data becomes available. Changes in
estimated 1995 pharmacy and management service revenues recorded in 1996
resulted in a $24.5 million reduction in 1996 net revenues. Other significant
areas which require the use of management estimates include the allowance for
uncollectible accounts receivable and the estimated useful life of identifiable
intangibles, internal use software and goodwill.

3. SELECTED BALANCE SHEET INFORMATION:

Accounts receivable, net consisted of the following:

<TABLE>
<CAPTION>
1997 1998
----------- -----------
<S> <C> <C>
Accounts receivable......................... $82,879,783 $84,892,951
Allowance for doubtful accounts............. (1,427,065) (2,146,659)
----------- -----------
Accounts receivable, net.................. $81,452,718 $82,746,292
=========== ===========
</TABLE>

Furniture and equipment consisted of the following:

<TABLE>
<CAPTION>
1997 1998
------------ -----------
<S> <C> <C>
Furniture and fixtures..................... $ 10,893,684 $13,189,431
Computer equipment and purchased
software................................. 10,059,836 6,695,083
Leasehold improvements..................... 5,213,657 2,914,698
Construction in progress................... -- 638,026
------------ -----------
26,167,177 23,437,238
Less accumulated depreciation and
amortization............................. (12,662,094) (8,526,826)
------------ -----------
Furniture and equipment, net............. $ 13,505,083 $14,910,412
============ ===========
</TABLE>

Internal use software, net consisted of the following:

<TABLE>
<CAPTION>
1997 1998
----------- -----------
<S> <C> <C>
Internal use software....................... $ -- $14,130,045
Less accumulated amortization............... -- (1,647,544)
----------- -----------
Internal use software, net................ $ -- $12,482,501
=========== ===========
</TABLE>

F-56
<PAGE> 138
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

Goodwill and intangibles, net consisted of the following:

<TABLE>
<CAPTION>
1997 1998
-------------- --------------
<S> <C> <C>
Customer List.......................... $ 400,000,000 $ 400,000,000
Acquired internally developed
software............................. 12,500,000 12,500,000
Databank software...................... 4,000,000 4,000,000
Goodwill............................... 1,850,230,000 758,046,469
-------------- --------------
2,266,730,000 1,174,546,469
Accumulated amortization............... (268,291,000) (342,049,000)
-------------- --------------
Net balance............................ $1,998,439,000 $ 832,497,469
============== ==============
</TABLE>

Amortization related to these intangibles and goodwill, excluding the
$1,092,183,531 write-down of goodwill discussed in Note 11, was $73,758,000 for
each of the three years in the period ended December 31, 1998.

4. RELATED PARTY TRANSACTIONS:

Diversified provided SB Corp with pharmacy benefit management services in
connection with its self-funded health plan in 1996, 1997 and 1998. Related
revenues for these services were $305,855, $234,923 and $269,017 in 1996, 1997
and 1998, respectively. SB Corp participates in Diversified's drug manufacturers
rebate program on terms similar to other participating manufacturers. Amounts
paid or payable by SB Corp under the program totaled approximately $10,400,000,
$7,900,000 and $7,200,000 in 1996, 1997 and 1998, respectively. In addition, SB
participates in utilization management programs on terms similar to other
participating manufacturers offered to Diversified's customers. Total revenue
from SB Corp related to the utilization management programs was $77,250 and
$810,000 in 1997 and 1998 respectively. No such revenues were generated by
Diversified in 1996. SB also purchases certain drug information products from
Diversified. These products provide manufacturers timely information about drug
utilization. Revenue from SB Corp for these information products was $5,000 and
$1,203,369 in 1997 and 1998, respectively. No such revenues were generated by
Diversified in 1996. Included in accounts receivable is $4,267,454 and
$1,910,694 from SB Corp as of December 31, 1997 and 1998, respectively.

Corporate services, overhead and other expenses are charged to Diversified
by SB Corp and to SB Corp by Diversified wherever possible on a direct basis,
such as resource usage or dedicated support percentage. The net expense from
these charges was approximately $5,100,000, $600,000 and $1,300,000 in 1996,
1997 and 1998, respectively, and are included in selling, general and
administrative expenses in the accompanying statements of operations.

Diversified incurred pharmacy claims expense of $5,198,749 in 1996 related
to Diversified Prescription Delivery L.L.C. for services performed for one of
Diversified's customers. Diversified paid on behalf of Diversified Prescription
Delivery L.L.C. disbursements of $1,326,249, $1,720,911 and $1,231,005 in 1996,
1997 and 1998, respectively, consisting of salaries, benefits, and other
services. Such amounts are billed to

F-57
<PAGE> 139
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

Diversified Prescription Delivery L.L.C. in the year incurred. In addition, in
1996, 1997 and 1998, Diversified earned royalties from Diversified Prescription
Delivery L.L.C. (Note 2) totaling $695,054, $4,010,792 and $3,231,968,
respectively. Included in accounts receivable are amounts receivable from
Diversified Prescription Delivery L.L.C. of $2,903,750 and $5,468,694 as of
December 31, 1997 and 1998, respectively.

At December 31, 1997 and 1998, Diversified has a total of $511,597
noninterest bearing notes receivable from Diversified Prescription Delivery
L.L.C. Although these notes are payable on demand, Diversified does not expect
to require repayment of them in 1999 and has therefore classified them as
long-term assets.

5. SIGNIFICANT CUSTOMERS:

Diversified recognized revenues for providing UHC with pharmacy benefit
management services of $389,502,444, $75,574,757 and $116,045,072 in 1996, 1997
and 1998, respectively. These revenues totaled approximately 56.3 percent, 33.1
percent and 54.0 percent of total revenues for the years ended December 31,
1996, 1997 and 1998, respectively.

In 1996, the agreement with UHC was structured on a capitated risk-sharing
basis. Adjustments to the amount payable to Diversified for services provided
were to be made based upon UHC's actual pharmacy claims experience. The
structure of the pharmacy benefit management agreement between Diversified and
UHC changed as of January 1, 1997 and contains a cost-based fee arrangement.
This agreement provides for UHC to pay all pharmacy claims and pharmacy benefit
management costs as incurred.

Total amounts receivable, from UHC including the provisions disclosed
above, were $10,988,971 and $4,970,219 as of December 31, 1997 and 1998,
respectively.

Corporate charges for services from UHC totaled $4,996,148, $1,366,498 and
$998,544 in 1996, 1997 and 1998, respectively. These charges are for services
provided by UHC to Diversified.

Receivables from two customers represented 13.5 percent and 13.2 percent of
accounts receivable as of December 31, 1997. Receivables from two customers
represented 19.1 percent and 17.3 percent of the accounts receivable as of
December 31, 1998.

F-58
<PAGE> 140
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

6. COMMITMENTS AND CONTINGENCIES:

Diversified is obligated under various noncancelable operating leases for
office facilities and equipment. These operating leases expire at various dates
through 2008. Rent expense was $6,121,964, $6,843,070 and $7,671,347 for 1996,
1997 and 1998, respectively. Future minimum rental payments required under
noncancelable operating leases with initial or remaining lease terms in excess
of one year as of December 31, 1998 are as follows:

<TABLE>
<S> <C>
1999...................................................... $ 6,311,202
2000...................................................... 6,287,416
2001...................................................... 6,070,773
2002...................................................... 5,118,824
2003...................................................... 5,148,122
Thereafter................................................ 23,682,366
-----------
$52,618,703
===========
</TABLE>

Diversified is party to certain disputes that arise in the normal course of
business. While the outcome of these matters cannot be predicted with certainty,
management presently believes that resulting adjustments, if any, would not have
a material effect on the financial position, results of operations or liquidity
of Diversified.

7. RETIREMENT PLANS:

MULTIEMPLOYER PENSION PLAN:

Diversified employees are eligible to participate in the SmithKline Beecham
Pension Plan, a multiemployer pension plan (the Pension Plan). Contributions to
the Pension Plan are determined in accordance with actuarial determinations made
by SB Corp. Diversified contributed $545,100, $900,000 and $1,152,000 to the
Pension Plan in 1996, 1997 and 1998, respectively.

OTHER EMPLOYEE BENEFIT PLANS:

Diversified participates in the SB Corp 401(k) Savings Plan (the Plan). All
employees of Diversified who have worked at least 900 hours in a year and have
met certain employment period requirements, as defined by the Plan, are eligible
to participate. Participants may contribute up to 15% of their eligible
compensation. Diversified matches a percentage of employees' contributions to
the Plan. Diversified contributed $2,247,695, $973,197 and $1,285,817 to the
Plan in 1996, 1997 and 1998, respectively.

Effective January 1, 1999, SB Corp redesigned the pension plans and 401(k)
savings plans which resulted in the addition of an SB Corp. stock investment
option and modification of certain eligibility and vesting terms.

8. STOCK OPTION PLAN:

SB plc offers a stock option incentive program for certain employees. The
options are granted annually at exercise prices equal to the market value of the
stock as of the date of grant. Stock options vest after three years from the
date of grant and must be exercised

F-59
<PAGE> 141
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

within 10 years from the date of grant. Diversified and SB plc follows the
method of accounting for employee stock compensation plans prescribed by APB No.
25, which is permitted by Statement of Financial Accounting Standards No. 123,
"Accounting for Stock-Based Compensation" (SFAS No. 123). In accordance with APB
No 25, the Company has not recognized compensation expense for stock options
because the exercise price of the options equal the market price of the
underlying stock on the date of the grant, which is the measurement date.
Certain management personnel of Diversified received SB plc stock options. If
Diversified had followed the fair value method for stock option plans in
accordance with SFAS No. 123 in 1996, 1997 and 1998, the net loss would have
increased by approximately $300,000, $1,000,000 and $2,300,000, respectively,
for each of the years then ended.

The fair value of the options granted are estimated using the Black-Scholes
option pricing model with the following assumptions: dividend yield of 1.6.%
(1996 -- 2.6%), volatility of 32% (1996 -- 22%), risk free investment rate of
6.5% (1996 -- 7.5%), assumed forfeiture rate of 1% and an expected life of seven
years.

9. INCOME TAXES:

Income tax benefit consisted of the following:

<TABLE>
<CAPTION>
1996 1997 1998
------------ ------------ -------------
<S> <C> <C> <C>
Current tax (benefit)..... $ -- $ -- $ --
Deferred tax expense
(benefit)............... (21,047,574) (20,960,217) (388,824,747)
------------ ------------ -------------
Benefit for income
taxes................ $(21,047,574) $(20,960,217) $(388,824,747)
============ ============ =============
</TABLE>

The taxable income of Diversified is included in the consolidated federal
income tax return of SB Corp. Diversified's income taxes are based on the
approximate amount that would have been computed on a separate company basis
utilizing the statutory federal and state tax rates on Diversified's earnings.

In 1996, 1997 and 1998, the difference between the federal statutory income
tax rate and the effective rate was primarily due to state income taxes.

Due to certain elections made by SB Corp at the date of acquisition, to
achieve a step-up in the tax basis of Diversified's assets, Diversified would
not (on a separate tax return basis) be required to pay federal income taxes for
the foreseeable future due to the deductibility of the amortization of goodwill
and intangibles relating to SB Corp's acquisition of Diversified. Such
amortization would offset Diversified's separate company taxable income. The
deferred tax asset and related tax benefit is also reflected in Diversified's
financial statements as if Diversified filed on a separate tax return basis.

Diversified's net deferred tax assets and liabilities as of December 31,
1997 and 1998 relate primarily to goodwill and intangibles.

F-60
<PAGE> 142
DIVERSIFIED PHARMACEUTICAL SERVICES, INC. AND SUBSIDIARY

NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)

10. DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS:

The carrying amounts reported in the balance sheet for cash, receivables
and notes receivable approximate fair value due to the short maturity of these
instruments.

There are no quoted market prices for Diversified's investment in joint
venture. Therefore, Diversified believes it is not practical to estimate a fair
market value different from the investment in joint venture carrying value.

11. SUBSEQUENT EVENT:

On February 9, 1999, SB Corp entered into an agreement to sell all of the
outstanding stock of Diversified in exchange for $700,000,000 of cash and the
unconditional termination of the SB Corp. receivables owed to Diversified.
Completion of the transaction, subject to regulatory review, is expected during
the second quarter of 1999. The Company and SB Corp have also agreed that, prior
to the closing of the sale, the assets and liabilities related to Diversified's
investment in Diversified Prescription Delivery L.L.C. will be transferred to SB
Corp.

As a result of the pending sale, management evaluated the recoverability of
the Company's long-lived assets, including goodwill and intangibles pursuant to
Statement of Financial Accounting Standards (SFAS) No. 121. In accordance with
SFAS No. 121, the Company recorded a provision of approximately $1.1 billion to
reduce the carrying value of certain long-lived assets. The tax benefit arising
from this charge has been recorded as a deferred tax asset in 1998. Also, as a
result of the above pending sale, the realizability of certain tax assets and
liabilities may be impacted.

12. CORPORATE COST ALLOCATION:

The financial statements of Diversified for the years ended December 31,
1996 and 1997, as previously prepared included direct costs incurred or
allocated to Diversified by SB Corp. Additional corporate overhead costs have
been included in these financial statements based on the relative percentage of
operating income of Diversified to the consolidated operating income of SB Corp
(excluding the effects of amortization of goodwill and intangible assets related
to SB Corp's acquisition of Diversified) which management believes is a
reasonable basis for such cost allocation. The following additional costs have
been included in Other selling, general and administrative on the statement of
operations.

<TABLE>
<CAPTION>
1996 1997 1998
------------ ------------ ---------------
<S> <C> <C> <C>
Loss before income taxes, as
previously reported................ $(59,899,125) $(55,097,892) $(1,108,486,380)
Adjustments for expenses not
previously allocated............... (1,286,000) (1,149,000) (2,565,000)
------------ ------------ ---------------
Loss before income taxes, after
allocated costs.................... $(61,185,125) $(56,246,892) $(1,111,051,380)
============ ============ ===============
</TABLE>

F-61
<PAGE> 143

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A
COLUMBIA PHARMACY SOLUTIONS

UNAUDITED COMBINED CONDENSED FINANCIAL STATEMENTS

AS OF MARCH 31, 1998 AND
FOR THE THREE MONTHS ENDED MARCH 31, 1998 AND 1997

F-62
<PAGE> 144

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A COLUMBIA PHARMACY SOLUTIONS

UNAUDITED COMBINED CONDENSED BALANCE SHEET

<TABLE>
<CAPTION>
MARCH 31,
1998
---------
(IN THOUSANDS)
<S> <C>
ASSETS:
Current assets:
Cash and Cash equivalents................................. $ 26,863
Receivables, less allowance for doubtful accounts of
$25,310................................................ 185,506
Inventories............................................... 10,881
Prepaid expenses and other current assets................. 3,320
Deferred income taxes..................................... 41,737
--------
Total current assets................................... 268,307
Property and equipment, net................................. 100,769
Goodwill and other intangibles, net......................... 250,707
Other assets................................................ 2,794
--------
Total assets........................................... $622,577
========

LIABILITIES AND STOCKHOLDER'S EQUITY
Current liabilities:
Payable to providers...................................... $162,853
Accounts payable and accrued expenses..................... 57,501
--------
Total current liabilities.............................. 220,354
Other liabilities........................................... 1,367
Stockholder's equity........................................ 400,856
--------
Total liabilities and stockholder's equity............. $622,577
========
</TABLE>

See notes to the unaudited combined condensed statements.

F-63
<PAGE> 145

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A COLUMBIA PHARMACY SOLUTIONS

UNAUDITED COMBINED CONDENSED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>
THREE MONTHS ENDED
----------------------
1998 1997
---- ----
(IN THOUSANDS)
<S> <C> <C>
Net revenues............................................... $409,928 $407,297
-------- --------
Cost and expenses:
Cost of revenues......................................... 375,295 366,913
Selling, general and administrative...................... 27,628 18,552
-------- --------
402,923 385,465
-------- --------
Operating income........................................... 7,005 21,832
-------- --------
Other income (expense):
Interest income.......................................... 56 103
Interest expense......................................... -- (24)
-------- --------
56 79
-------- --------
Income before income taxes................................. 7,061 21,911
Provision for income taxes................................. 3,665 10,832
-------- --------
Net income................................................. $ 3,396 $ 11,079
======== ========
</TABLE>

See notes to the unaudited combined condensed statements.

F-64
<PAGE> 146

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A COLUMBIA PHARMACY SOLUTIONS

UNAUDITED COMBINED CONDENSED STATEMENT OF CASH FLOW

<TABLE>
<CAPTION>
THREE MONTHS ENDED
MARCH 31,
-------------------
1998 1997
-------- --------
(IN THOUSANDS)
<S> <C> <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income................................................ $ 3,396 $ 11,079
Adjustments to reconcile net income to net cash provided
by operating activities:
Depreciation and amortization.......................... 8,811 4,537
Provision for doubtful accounts........................ 478 1,679
Gain on disposal of assets............................. (106) (1,230)
Deferred income taxes.................................. -- 1,877
Net changes in operating assets and liabilities........ (11,355) (17,809)
-------- --------
Net cash provided by operating activities................... 1,224 133
-------- --------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment....................... (5,216) (14,236)
Sale of investment........................................ 6,000 --
-------- --------
Net cash provided by (used in) investing activities......... 784 (14,236)
-------- --------
CASH FLOWS USED IN FINANCING ACTIVITIES:
Net (payments) receipts to/from parent................. (7,220) 46,791
-------- --------
Net (decrease) increase in cash and cash equivalent......... (5,212) 32,688
Cash and cash equivalent at beginning of period............. 32,075 9,370
-------- --------
Cash and cash equivalent at end of period................... $ 26,863 $ 42,058
======== ========
</TABLE>

See notes to the unaudited combined condensed statements.

F-65
<PAGE> 147

VALUE HEALTH PHARMACY BENEFIT MANAGEMENT AND
MANAGED PRESCRIPTION NETWORK, INC. D/B/A COLUMBIA PHARMACY SOLUTIONS

NOTES TO UNAUDITED COMBINED CONDENSED FINANCIAL STATEMENTS

NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Financial statement note disclosures, normally included in financial
statements prepared in conformity with generally accepted accounting principles,
have been omitted in these combined condensed financial statements pursuant to
the Form 10-Q rules and Regulations of the Securities and Exchange Commission.
However, in the opinion of the Company, the disclosure contained herein are
adequate to make the information presented not misleading when read in
conjunction with the notes to combined financial statements of Value Health
Pharmacy Benefit Management ("Value Health, Inc.") for the Year Ended December
31, 1997 and the notes to financial statements of Managed Prescription Network,
Inc. d/b/a Columbia Pharmacy Solutions ("MPN") for the Year Ended December 31,
1997 included in the Company's Current Report on Form 8-K/A, as filed with the
Securities and Exchange Commission on June 12, 1998.

In the opinion of the Company, the accompanying unaudited combined
condensed financial statements, including, Value Health, Inc. and MPN, reflect
all adjustments (consisting of only normal recurring adjustments) necessary to
present fairly the Combined Condensed Balance Sheet at March 31, 1998, the
Combined Condensed Statement of Operations for the three months ended March 31,
1998, and 1997, and the Condensed Combined Statement of Cash Flows for the three
months ended March 31, 1998, and 1997.

NOTE 2 - STOCKHOLDER'S EQUITY

The combined changes in stockholder's equity is as follows:

<TABLE>
<S> <C>
Balance at December 31, 1997.............................. $406,746
Net income........................................... 3,396
Net distributions to parent.......................... (9,286)
--------
Balance at March 31, 1998................................. $400,856
========
</TABLE>

NOTE 3 - SUBSEQUENT EVENTS

On April 1, 1998, Express Scripts, Inc. announced that it had consummated
the acquisition of the outstanding common stock of VHI and MPN, the sole assets
of which are various subsidiaries each now or formerly conducting business as a
pharmacy benefit management company, from Columbia/HCA Healthcare Corporation
for approximately $460 million in cash.

F-66
<PAGE> 148

[EXPRESS SCRIPTS LOGO]
<PAGE> 149

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

The expenses in connection with the issuance and distribution of the
securities being registered, other than underwriting discounts and commissions
(which are described in the prospectus), are estimated as follows:

<TABLE>
<S> <C>
Securities and Exchange Commission registration
fee............................................. $112,761.39
Legal fees and expenses........................... *
Accounting fees and expenses...................... *
Printing and engraving expenses................... *
Blue Sky filing fees and expenses................. *
NASD filing fee................................... $30,500.00
The Nasdaq National Market listing fee............ *
Miscellaneous expenses............................ *
Total........................................ $
===========
</TABLE>

- -------------------------

* To be included by amendment.

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

Section 102(b)(7) of the General Corporation Law of the State of Delaware
(the "Delaware Law") enables a corporation in its original certificate of
incorporation or an amendment to eliminate or limit the personal liability of a
director to a corporation or its stockholders for violations of the director's
fiduciary duty, except (1) for any breach of a director's duty of loyalty to the
corporation or its stockholders, (2) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (3) pursuant
to Section 174 of the Delaware Law (providing for liability of directors for
unlawful payment of dividends or unlawful stock purchases or redemptions) or (4)
for any transaction from which a director derived an improper personal benefit.
Our Amended and Restated Certificate of Incorporation provides for the
elimination of the liability of our directors to the extent permitted by Section
102(b)(7) of the Delaware Law.

Section 145 of the Delaware Law provides, in summary, that directors and
officers of Delaware corporations are entitled, under certain circumstances, to
be indemnified against all expenses and liabilities (including attorney's fees)
incurred by them as a result of suits brought against them in their capacity as
a director or officer, if they acted in good faith and in a manner they
reasonably believed to be in or not opposed to our best interests, and, with
respect to any criminal action or proceeding, if they had no reasonable cause to
believe their conduct was unlawful; provided, that no indemnification may be
made against expenses in respect of any claim, issue or matter as to which they
shall have been adjudged to be liable to us, unless and only to the extent that
the court in which such action or suit was brought shall determine upon
application that, despite the adjudication of liability but in view of all the
circumstances of the case, they are fairly and reasonably entitled to indemnity
for such expenses which the court shall deem proper. Any such indemnification
may be made by us only as authorized in each specific case upon a determination
by our stockholders or disinterested directors that indemnification is proper

II-1
<PAGE> 150

because the indemnitee has met the applicable standard of conduct. Article Seven
of our certificate of incorporation entitles our officers and directors to
indemnification to the fullest extent permitted by Section 145 of the Delaware
Law, as the same may be supplemented from time to time.

Article Eight of our certificate of incorporation provides that no director
shall have any personal liability to us or our stockholders for any monetary
damages for breach of fiduciary duty as a director, provided that such provision
does not limit or eliminate the liability of any director (1) for breach of such
director's duty of loyalty to us or our stockholders, (2) for acts or omissions
not in good faith or which involve international misconduct or knowing violation
of the law, (3) under Section 174 of the Delaware Law (involving certain
unlawful dividends or stock repurchases) or (4) for any transaction from which
such director derived an improper personal benefit.

ITEM 16. EXHIBITS

<TABLE>
<S> <C> <C>
1.1 -- Form of Underwriting Agreement+
4.0 -- Certificate of Class A Common Stock*
5.1 -- Opinion of Simpson Thacher & Bartlett+
23.1 -- Consent of PricewaterhouseCoopers LLP
23.2 -- Consent of Ernst & Young LLP, Minneapolis, Minnesota
23.3 -- Consent of Ernst & Young LLP, Pittsburgh, Pennsylvania
Consent of Simpson Thacher & Bartlett (included in Exhibit
23.4 -- 5.1)+
24.1 -- Powers of attorney++
</TABLE>

- -------------------------

* Incorporated by reference in our Registration Statement on Form 8-A dated May
12, 1992.

+ To be filed by amendment.

++ Filed previously.

ITEM 17. UNDERTAKINGS

We undertake that, for purposes of determining any liability under the
Securities Act, each filing of our annual report pursuant to Section 13(a) or
Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange
Act) that is incorporated by reference in this registration statement will be
deemed to be a new registration statement relating to the securities offered in
this registration statement, and the offering of such securities at that time
will be deemed to be the initial bona fide offering.

Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to our directors, officers and controlling persons pursuant to
the foregoing provisions, or otherwise, we have been advised that in the opinion
of the SEC such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by us of
expenses incurred or paid by our director, officer, or controlling person in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer, or controlling person in connection with the securities being
registered, we will, unless in the opinion of our counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such

II-2
<PAGE> 151

indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

We undertake that:

(1) For purposes of determining any liability under the Securities
Act, the information omitted from the form of prospectus filed as part of
this registration statement in reliance upon Rule 430A and contained in a
form of prospectus filed by us pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.

(2) For the purpose of determining any liability under the Securities
Act, each post-effective amendment that contains a form of prospectus shall
be deemed to be a new registration statement relating to the securities
offered in that registration statement, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering.

II-3
<PAGE> 152

SIGNATURES

Pursuant to the requirements of the Securities Act, we certify that we have
reasonable grounds to believe that we meet all of the requirements for filing on
Form S-3 and have duly caused this registration statement to be signed on our
behalf by the undersigned, thereunto duly authorized, in the City of Maryland
Heights, State of Missouri on May 24, 1999.

EXPRESS SCRIPTS, INC.

BY: *
------------------------------------
Barrett A. Toan, President and
Chief Executive Officer

Pursuant to the requirements of the Securities Act, this registration
statement has been signed below by the following persons in the capacities
indicated on May 24, 1999.

<TABLE>
<CAPTION>
SIGNATURE TITLE DATE
--------- ----- ----
<C> <S> <C>
(1) Principal Executive Officer:
President, Chief Executive
* Officer and Director May 24, 1999
- ---------------------------------------------------
Barrett A. Toan

(2) Principal Financial Officer:
Senior Vice President and
* Chief Financial Officer May 24, 1999
- ---------------------------------------------------
George Paz

(3) Principal Accounting Officer: Vice President, Chief Accounting
May 24, 1999
*
- --------------------------------------------------- Officer and Assistant Secretary
Joseph W. Plum

(4) Directors:
*
- --------------------------------------------------- Director May 24, 1999
Howard Atkins

*
- --------------------------------------------------- Director May 24, 1999
Judith E. Campbell

*
- --------------------------------------------------- Director May 24, 1999
Richard M. Kernan, Jr.

*
- --------------------------------------------------- Director May 24, 1999
Richard A. Norling

*
- --------------------------------------------------- Director May 24, 1999
Frederick J. Sievert
</TABLE>

II-4
<PAGE> 153

<TABLE>
<CAPTION>
SIGNATURE TITLE DATE
--------- ----- ----
<C> <S> <C>
*
- --------------------------------------------------- Director May 24, 1999
Stephen N. Steinig

*
- --------------------------------------------------- Director May 24, 1999
Seymour Sternberg

*
- --------------------------------------------------- Chairman, Director May 24, 1999
Howard L. Waltman

*
- --------------------------------------------------- Director May 24, 1999
Norman Zachary

*By: /s/ KEITH J. EBLING
---------------------------------------------
As attorney-in-fact for the
person indicated
</TABLE>

II-5
<PAGE> 154

EXHIBIT INDEX

<TABLE>
<CAPTION>
DESCRIPTION PAGE
<S> <C> <C> <C>
1.1 -- Form of Underwriting Agreement+.............................
4.0 -- Certificate of Class A Common Stock*........................
5.1 -- Opinion of Simpson Thacher & Bartlett.......................
23.1 -- Consent of PricewaterhouseCoopers LLP.......................
23.2 -- Consent of Ernst & Young LLP, Minneapolis, Minnesota........
23.3 -- Consent of Ernst & Young LLP, Pittsburgh, Pennsylvania......
Consent of Simpson Thacher & Bartlett (included in Exhibit
23.4 -- 5.1)........................................................
24.1 -- Powers of attorney++........................................
</TABLE>

- -------------------------

* Incorporated by reference in our Registration Statement on Form 8-A dated May
12, 1992.

+ To be filed by amendment.

++ Filed previously.

<PAGE> 1

EXHIBIT 5.1

May 24, 1999

Express Scripts, Inc.

13900 Riverport Drive

Maryland Heights, MO 63043

Ladies and Gentlemen:

We have acted as counsel to Express Scripts, Inc., a Delaware corporation
(the "Company"), in connection with the Registration Statement on Form S-3 (the
"Registration Statement") filed by the Company with the Securities and Exchange
Commission (the "Commission") under the Securities Act of 1933, as amended (the
"Act"), relating to the issuance by the Company of 4,500,000 shares of Class A
Common Stock, par value $0.01 per share (together with any additional shares of
such stock that may be issued by the Company pursuant to Rule 462(b) (as
prescribed by the Commission pursuant to the Act) in connection with the
offering described in the Registration Statement, the "Shares").

We have examined the Registration Statement and a form of the Share
certificate, which has been filed with the Commission as an exhibit to the
Registration Statement. We also have examined the originals, or duplicates or
certified or conformed copies, of such records, agreements, instruments and
other documents and have made such other and further investigations as we have
deemed relevant and necessary in connection with the opinions expressed herein.
As to questions of fact material to this opinion, we have relied upon
certificates of public officials and of officers and representatives of the
Company.

In such examination, we have assumed the genuineness of all signatures, the
legal capacity of natural persons, the authenticity of all documents submitted
to us as originals, the conformity to original documents of all documents
submitted to us as duplicates or certified or conformed copies, and the
authenticity of the originals of such latter documents.

Based upon the foregoing, and subject to the qualifications and limitations
stated herein, we are of the opinion that (1) when the Board of Directors of the
Company (the "Board") has taken all necessary corporate action to authorize and
approve the issuance of the Shares and (2) upon payment and delivery in
accordance with the applicable definitive underwriting agreement approved by the
Board, the Shares will be validly issued, fully paid and nonassessable.

We are members of the Bar of the State of New York and we do not express
any opinion herein concerning any law other than the Delaware General
Corporation Law.

We hereby consent to the filing of this opinion letter as Exhibit 5.1 to
the Registration Statement and to the use of our name under the caption "Legal
Matters" in the Prospectus included in the Registration Statement.

Very truly yours,

/s/ SIMPSON THACHER & BARTLETT

<PAGE> 1

EXHIBIT 23.1

CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to:

- the use in the Prospectus constituting part of this Registration
Statement on Form S-3 of our report dated February 12, 1999 relating to
the financial statements of Express Scripts, Inc. and our report dated
February 26, 1999, except for Note 12, which is as of March 1, 1999,
relating to the financial statements of Diversified Pharmaceutical
Services, Inc. and subsidiary, which are included in such Prospectus;

- the incorporation by reference in the Prospectus constituting part of
this Registration Statement on Form S-3 of our report dated February 12,
1999 relating to the financial statements and financial statement
schedule, which appears in Express Scripts Inc.'s Annual Report on Form
10-K for the year ended December 31, 1998;

- the incorporation by reference in the Prospectus constituting part of
this Registration Statement on Form S-3 of our report dated April 30,
1998, on our audits of the combined financial statements of Value Health
Pharmacy Benefit Management as of December 31, 1996, and for the years
ended December 31, 1996 and 1995, appearing on page 24 of Express
Scripts, Inc.'s Form 8-K/A Amendment No. 1 dated June 12, 1998; and

- the references to us under the headings "Experts" and "Selected Financial
and Operating Data" in such Prospectus. However, it should be noted that
PricewaterhouseCoopers LLP has not prepared or certified such "Selected
Financial and Operating Data."

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
St. Louis, Missouri

May 24, 1999

<PAGE> 1

EXHIBIT 23.2

CONSENT OF ERNST & YOUNG LLP

We consent to the reference to our firm under the caption "Experts" and to
the use
of our reports dated June 4, 1998, with respect to the financial statements of
Value Health Pharmacy Benefit Management included in Express Scripts, Inc.'s
Current Report on Form 8-K/A dated June 12, 1998, and incorporated by reference
in this Registration Statement on Form S-3 and related Prospectus of Express
Scripts, Inc.

/s/ ERNST & YOUNG LLP

Minneapolis, Minnesota

May 24, 1999

<PAGE> 1

EXHIBIT 23.3

CONSENT OF ERNST & YOUNG LLP

We consent to the reference of our firm under the caption "Experts" and to
the
use of our reports dated June 1, 1998, with respect to the financial statements
of Managed Prescription Network, Inc. included in Express Scripts, Inc.'s
Current Report on Form
8-K/A dated June 12, 1998, and incorporated by reference in this Registration
Statement on Form S-3 and related Prospectus of Express Scripts, Inc.

/s/ ERNST & YOUNG LLP

Pittsburgh, Pennsylvania

May 24, 1999