AMERICAN HOME PRODUCTS CORP
8-K, 1999-10-08
PHARMACEUTICAL PREPARATIONS
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT

                        PURSUANT TO SECTION 13 OR 15 (d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934



        DATE OF REPORT (Date of earliest event reported): October 7, 1999


                       AMERICAN HOME PRODUCTS CORPORATION
             (Exact name of registrant as specified in its charter)



               Delaware                     1-1225            13-2526821

      (State or other                     (Commission       (IRS Employer
      jurisdiction of incorporation)      File Number)      Identification No.)




         Five Giralda Farms, Madison, New Jersey                    07940
         (Address of Principal Executive Offices)                 (Zip Code)


         Registrant's telephone number, including area code: 973-660-5000


<PAGE>

Item 5.  Other Events.

     On October 7, 1999, American Home Products Corporation ("AHP") announced
that it reached a comprehensive, national settlement to resolve litigation
against AHP brought by people who used REDUX (dexfenfluramine) or PONDIMIN
(fenfluramine). AHP issued a press release concerning the settlement which is
attached hereto as Exhibit 99.1 and is incorporated herein by reference. Also
attached as Exhibit 99.2 is the "Memorandum of Understanding Concerning
Settlement of Diet Drug Litigation" which details the terms of the settlement
and is incorporated herein by reference.

Item 7.  Financial Statements and Exhibits.

         (c)  Exhibits

       (99.1) Press Release dated October 7, 1999.

       (99.2) Memorandum of Understanding Concerning Settlement of Diet Drug
              Litigation




                                    SIGNATURE


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                       AMERICAN HOME PRODUCTS CORPORATION

                                       By: /s/ Paul J. Jones
                                       Vice President and Comptroller
                                       (Duly Authorized Signatory and
                                       Chief Accounting Officer)
Dated: October 8, 1999






<PAGE>

                                  EXHIBIT INDEX



       (99.1) Press Release dated October 7, 1999.

       (99.2) Memorandum of Understanding Concerning Settlement of Diet Drug
              Litigation



<PAGE>

                                                                    Exhibit 99.1

FOR IMMEDIATE RELEASE

Media Contacts:                                           Investor Contact:
Lowell Weiner                                             Thomas Cavanagh
American Home Products                                    American Home Products
(973) 660-5013                                            (973) 660-5706

Douglas Petkus
Wyeth-Ayerst Laboratories
(973) 660-5034

                        AMERICAN HOME PRODUCTS ANNOUNCES
                            DIET DRUG SETTLEMENT PLAN

Madison, N.J., October 7, 1999 -- American Home Products Corporation (NYSE: AHP)
today announced a comprehensive, national settlement to resolve litigation
against the Company brought by people who used Redux-TM- (dexfenfluramine) or
Pondimin-Registered TradeMark- (fenfluramine).

This nationwide, class action settlement is open to all Redux or Pondimin users
in the U.S., regardless of whether they have lawsuits pending. It offers a range
of benefits depending on


<PAGE>

                                      - 2 -

a participant's particular circumstances, including:

     -    a refund program for the cost of the drugs;

     -    medical screening;

     -    additional medical services or cash payments; and

     -    substantial compensation in the event of serious heart valve problems.

Additional details are provided in the attached summary.

"This settlement provides fair and equitable terms for both diet drug claimants
and American Home Products," said John R. Stafford, Chairman, President and
Chief Executive Officer. The agreement was developed by attorneys for the
Company and by plaintiffs' attorneys involved in various federal and state
cases.

"Settling this matter was in the best interest of those who used Pondimin or
Redux as well as of the company," said Mr. Stafford. "We believe that this
agreement is a sound way to resolve the claims raised by diet drug users and
represents a prudent course for our company. It offers peace of mind to those
who used the drugs and permits the company to move beyond the uncertainty and
distractions of litigation."

                                    - more -


<PAGE>


                                      - 3 -

"We agreed to this settlement so that we can focus on the business of making
innovative pharmaceutical products. Today, we have in our research pipeline
products to help solve some of the world's most pressing health problems and
this settlement allows us to pursue and expand that effort," said Mr. Stafford.

"In designing the agreement with the plaintiffs' attorneys, we wanted to ensure
that the benefits are attractive to the claimants and provide a strong incentive
for participation," said Louis L. Hoynes, Jr., Senior Vice President and General
Counsel for American Home Products. "We are confident that well-informed
claimants will conclude that the range of benefits of this settlement is
preferable to lengthy and uncertain litigation. The scientific studies conducted
to date and clinical experience indicate that the health of the overwhelming
majority of people who took Redux or Pondimin has not been adversely affected.
The studies also show no increased risk of valvular heart disease among persons
who took the drugs for three months or less - more than 75% of those who took
the drugs. Yet this settlement provides a quality package of benefits for all
individuals who used the drugs and financial protection in the event a person
should develop serious heart valve disease."


                                    - more -

<PAGE>

                                      - 4 -

The settlement agreement is subject to judicial approval. A judicially-approved
notice program will provide potential participants with details regarding the
settlement procedures. This will be followed by hearings to obtain judicial
approval of the settlement.

Initial payments by American Home Products into the settlement funds are
anticipated to begin later this year. Payments will continue for approximately
16 years after final judicial approval if needed to provide settlement benefits
to members of the class. Payments to be made during the next two years are
anticipated to total $1.85 billion. In the aggregate, all payments under the
settlement cannot exceed $3.75 billion in present value. Future payments will be
made only as and if needed, and are subject to annual maximum amounts. In
addition, American Home Products will receive credits for future payments to
persons who opt out of the settlement under certain circumstances.

The Company will record a charge of $4.75 billion pretax ($3.29 billion after
tax, equal to $2.51 per share) to provide for expected payments to the
settlement funds, other judgments and settlements, and legal costs.


                                    - more -


<PAGE>

                                      - 5 -

The charge, which is net of available insurance, will be reflected in the 1999
third quarter financial results.

Redux and Pondimin were indicated for the treatment of obesity as part of a
broader weight management program, including diet and exercise. On September 15,
1997, Wyeth-Ayerst Laboratories, the pharmaceutical division of American Home
Products, voluntarily withdrew Redux and Pondimin from the market after the FDA
presented to the Company new and preliminary information about possible heart
valve abnormalities in some patients using these products.

More recent well-controlled clinical trials -- many of which have already been
published in peer-reviewed journals and presented at major medical meetings ---
indicate that serious heart valve disease among former diet drug users is rare
and the actual prevalence of heart valve regurgitation is far lower than was
suggested at the time of the products' withdrawal. These findings are consistent
with the clinical experience of cardiologists.

A toll-free telephone number (1-800-386-2070) has been established to provide
information on the settlement.



                                    - more -


<PAGE>

                                      - 6 -

Wyeth-Ayerst Laboratories is a major research-oriented pharmaceutical company
with leading products in the areas of women's health care, cardiovascular
disease therapies, central nervous system drugs, anti-inflammatory agents,
vaccines and generic pharmaceuticals. American Home Products is one of the
world's largest research-based pharmaceutical and health care products
companies. It is a leader in the discovery, development, manufacturing and
marketing of prescription drugs and over-the-counter medications. It is also a
global leader in vaccines, biotechnology, agricultural products and animal
health care.

The statements in this press release that are not historical facts are
forward-looking statements that involve risks and uncertainties including,
without limitation, court approval of the settlement agreement, the outcome of
any appeals, and the extent to which opt out rights are exercised, and other
risks and uncertainties, including those detailed from time to time in AHP's
periodic reports, including quarterly reports on Form 10-Q and the annual report
on Form 10-K, filed with the Securities and Exchange Commission. Actual results
may differ from forward-looking statements.


                                      # # #


<PAGE>

                                                                    Exhibit 99.2








                           MEMORANDUM OF UNDERSTANDING
                              CONCERNING SETTLEMENT
                             OF DIET DRUG LITIGATION












Dated: OCTOBER 7, 1999


<PAGE>



                                                 TABLE OF CONTENTS

<TABLE>
<S>                                                                                                             <C>
PREAMBLE..........................................................................................................1

I.       SETTLEMENT AMOUNTS AND PARTICIPANTS......................................................................3

         1.       DEFINITIONS.....................................................................................3

         2.       SCOPE OF THE SETTLEMENT CLASS...................................................................9

         3.       AHP'S PAYMENT OBLIGATIONS......................................................................11

                  A.       ESTABLISHMENT OF SETTLEMENT TRUST.....................................................11

                  B.       FUND A................................................................................12

                  C.       FUND B................................................................................13

                  D.       OTHER PROVISIONS......................................................................17

         4.       SECURITY ARRANGEMENTS..........................................................................18

II.      CLASS MEMBER RIGHTS AND BENEFITS........................................................................21

         1.       SCREENING/REFUND/MEDICAL SERVICES/CASH/RESEARCH BENEFITS
                  PAYABLE FROM FUND A............................................................................21

                  A.       BENEFITS FOR CLASS MEMBERS WHO INGESTED PONDIMIN
                           AND/OR REDUX FOR MORE THAN 60 DAYS ...................................................21

                  B.       BENEFITS FOR CLASS MEMBERS WHO INGESTED PONDIMIN
                           AND/OR REDUX FOR 60 DAYS OR LESS......................................................22

                  C.       BENEFITS FOR ALL CLASS MEMBERS........................................................23

         2.       COMPENSATION BENEFITS PAYABLE FROM FUND B......................................................24
                  A.       ELIGIBLE CLASS MEMBERS................................................................24
                  B.       BENEFITS AVAILABLE....................................................................25
                  C.       PAYMENT PROVISIONS....................................................................27
         3.       OPT-OUT RIGHTS.................................................................................28
         4.       ACCELERATED IMPLEMENTATION OPTION..............................................................33
</TABLE>


                                                                               2

<PAGE>


<TABLE>
<S>                                                                                                             <C>
III.     AHP RIGHTS AND BENEFITS.................................................................................35

         1.       CREDITS........................................................................................35
         2.       EFFECT ON CLAIMS...............................................................................36
         3.       PROTECTION OF AHP FROM CLAIMS BY NON-SETTLING DEFENDANTS.......................................37

         4.       PROTECTION OF AHP FROM POSSIBLE SUBROGATION CLAIMS.............................................38

         5.       WALKAWAY RIGHTS................................................................................38

         6.       LIMITATION ON FINANCIAL OBLIGATIONS ...........................................................39
IV.      SETTLEMENT IMPLEMENTATION...............................................................................39

         1.       GENERAL........................................................................................39

         2.       JURISDICTION...................................................................................39

         3.       APPROVAL PROCESS AND NOTICE PROVISIONS.........................................................40

         4.       CONDITIONS.....................................................................................41

         5.       ADMINISTRATION OF CLAIMS.......................................................................41

         6.       ATTORNEYS' FEES................................................................................43

         7.       OTHER PROVISIONS...............................................................................45
</TABLE>




                                                                               3

<PAGE>



                                TABLE OF EXHIBITS




EXHIBIT "A" FUND B MATRICES

                  A-1 - FUND B PAYMENT MATRICES
                  A-2 - CRITERIA FOR THE APPLICATION OF THE MATRICES
                  A-3 - MATRIX LEVELS OF VALVULAR HEART DISEASE

EXHIBIT "B"       CREDITS

EXHIBIT "C"       DEFINITION OF SETTLED CLAIMS

EXHIBIT "D"       LIST OF RELEASED PARTIES

EXHIBIT "E"       JUDGMENT REDUCTION FOR CLAIMS BY THIRD PARTIES




                                                                               4

<PAGE>



                     MEMORANDUM OF UNDERSTANDING CONCERNING
                       SETTLEMENT OF DIET DRUG LITIGATION

                                    PREAMBLE

         American Home Products Corporation ("AHP") and the undersigned
representatives of the purported class and subclasses defined herein (the "Class
Representatives") (together, the "Parties") hereby agree to propose a nationwide
class action settlement which would resolve, on the terms set forth in this
Memorandum of Understanding ("MOU"), "Settled Claims" against AHP and other
"Released Parties" arising from the marketing, sale, distribution and use of the
diet drugs Pondimin and Redux pending in various courts, including but not
limited to claims which have been made in the actions that have been transferred
for coordinated or consolidated pretrial proceedings to the United States
District Court for the Eastern District of Pennsylvania under Docket No. MDL
1203 (the "Federal District Court"), in the ongoing trial in VADINO ET AL. V.
AHP (Docket No. MID-L-425-98), and in the numerous other state courts around the
United States. The Parties to this MOU are aware of the following certified or
conditionally certified nationwide or statewide classes involving Pondimin and
Redux: United States District Court for the Eastern District of Pennsylvania, IN
RE DIET DRUG PRODUCTS LIABILITY LITIGATION, MDL 1203 (nationwide medical
monitoring class); West Virginia (BURCH ET AL. V. AHP, Civil Action No.
97-C-204(1-11)) (statewide personal injury and medical monitoring class);
Illinois (RHYNE V. AHP, 98 CH 4099) (statewide refund and monitoring
reimbursement class); New Jersey (VADINO ET AL. V. AHP, Docket No. MID-L-425-98)
(statewide Unfair and Deceptive Acts and Practices and medical monitoring
class); New York (NEW YORK DIET DRUG LITIGATION, Index No. 700000/98) (statewide
medical monitoring class); Pennsylvania (PENNSYLVANIA DIET DRUG LITIGATION,
Master Docket No. 9709-3162 C.C.P. Phila.) (statewide medical monitoring


                                                                               5
<PAGE>

class); Texas (EARTHMAN V. AHP, No. 97-10-03970 CV, Dist. Ct. Montgomery Co.
Texas) (statewide medical monitoring class); Washington (ST. JOHN V. AHP,
97-2-06368-4) (statewide medical monitoring class). The Parties are committed to
implementing this settlement in a manner that meets all legal requirements and
assures the appropriate participation of the various courts.

         This MOU outlines the terms on which the Parties have agreed. These
terms will be set forth in a formal settlement agreement (such final agreement,
when executed, being referred to herein as the "Settlement Agreement"). The
terms of this MOU shall be merged with and superseded by the Settlement
Agreement. The Parties shall negotiate in good faith to prepare the Settlement
Agreement, which shall be executed within 45 days from the date of this MOU.
Prior to execution of the Settlement Agreement, however, this MOU is binding on
the Parties.

         Neither this MOU nor the Settlement Agreement entered into pursuant to
this MOU shall be construed as evidence of or as an admission by AHP of any
liability or wrongdoing whatsoever or as an admission by the Class
Representatives or members of the Settlement Class as defined herein ("Class
Members") of any lack of merit in their claims.

         Accordingly, AHP and the Class Representatives hereby agree, subject to
judicial approval (except as to the Accelerated Implementation Option ("AIO")
described in Section II.4 below), compliance with applicable legal requirements,
and other conditions, all as set forth below, that settlement fund(s) shall be
established, from which the benefits outlined herein will be paid to the Class
Members of the proposed settlement class and subclasses, and that the Settled
Claims against AHP and other Released Parties, as defined herein, will be


                                                                               6
<PAGE>

settled, compromised and released, as outlined below:


                                                                               7

<PAGE>



I.       SETTLEMENT AMOUNTS AND PARTICIPANTS

         1.       DEFINITIONS

                  -        "Adjusted Maximum Annual Payment Amount," or
                           "Adjusted MAPA," shall mean the maximum amount that
                           AHP shall be obligated to deposit in Fund B during
                           any Fiscal Year beginning with the second Fiscal Year
                           after the Final Judicial Approval Date through the
                           sixteenth Fiscal Year after the Final Judicial
                           Approval Date. The Pre-Adjusted MAPA for each such
                           year is set forth in Section I.3.C below. The
                           Adjusted MAPA with regard to any Fiscal Year refers
                           to the amount of the Pre-Adjusted MAPA for that year,
                           as adjusted by increases due to Unused Adjusted
                           MAPAs, as defined in Section I.3.C, from prior years
                           and accretion thereon as set forth therein, and as
                           adjusted by decreases due to accumulated accreted
                           credits applied thereto as provided herein.

                  -        "AHP" means American Home Products Corporation, its
                           successors and assigns.

                  -        "AHP Released Parties" shall mean those Released
                           Parties set forth in paragraphs (a) and (b) of
                           Exhibit "D." "Non-AHP Released Parties" shall mean
                           those Released Parties set forth in Exhibit "D,"
                           other than the AHP Released Parties.

                  -        "Claims Administrator" shall mean a person or persons
                           to be appointed by the Trustees subject to approval
                           of the Court(s) to administer claims for benefits
                           pursuant to the settlement.

                  -        "Court(s)" refers, as to any judicial action
                           contemplated herein, to such court or courts that the
                           Parties mutually agree shall be asked to take such
                           action, as the Parties shall set forth in the
                           Settlement Agreement.

                  -        "Date 1" is the date after Final Judicial Approval,
                           to be agreed upon in the Settlement Agreement, by
                           which (i) Class Members in Subclasses 1(a) and 1(b)
                           must register to receive refund and/or Screening
                           Program benefits from Fund A, and (ii) Class Members
                           in Subclasses 2(a) and 2(b) must register to receive
                           refund benefits from Fund A.

                  -        "Date 2" is 120 days after the end of the Screening
                           Period.

                  -        "Diet Drug(s)" shall mean Fenfluramine marketed under
                           the brand name Pondimin and/or Dexfenfluramine
                           marketed under the brand name Redux.



                                                                               8

<PAGE>



                  -        "Endocardial Fibrosis" is defined as a condition (A)
                           diagnosed by (1) endomyocardial biopsy that
                           demonstrates fibrosis and cardiac catheterization
                           that demonstrates restrictive cardiomyopathy or (2)
                           autopsy that demonstrates endocardial fibrosis and
                           (B) other causes, including dilated cardiomyopathy,
                           myocardial infarction, amyloid, Loeffler's
                           endocarditis, endomyocardial fibrosis as defined in
                           Braunwald (involving one or both ventricles, located
                           in the inflow tracts of the ventricles, commonly
                           involving the cordae tendinea, with partial
                           obliteration of either ventricle commonly present),1
                           focal fibrosis secondary to valvular regurgitation,
                           E.G., "jet lesions," focal fibrosis secondary to
                           catheter instrumentation, and hypertrophic
                           cardiomyopathy with septal fibrosis, have been
                           excluded.

                  -        "FDA Positive" is defined as mild or greater
                           regurgitation of the aortic valve of the heart and/or
                           moderate or greater regurgitation of the mitral valve
                           of the heart as these levels are defined in Singh2
                           (1999) and measured by an echocardiographic
                           examination performed and evaluated by qualified
                           medical personnel following the protocol as outlined
                           in Feigenbaum3 (1994) or Weyman4 (1994). The degrees
                           of regurgitation are determined as follows:

                           -        Aortic Valve -- Mild or greater
                                    regurgitation, defined as regurgitant jet
                                    diameter in the parasternal long-axis view
                                    (or in the apical long-axis view, if the
                                    parasternal long-axis view is unavailable),
                                    equal to or greater than 10% of the outflow
                                    tract diameter (JH/LVOTH).

                           -        Mitral Valve -- Moderate or greater
                                    regurgitation, defined as regurgitant jet
                                    area in any apical view equal to or greater
                                    than 20% of the left atrial area (RJA/LAA).


- --------

1        Braunwald, E. HEART DISEASE. A TEXTBOOK OF CARDIOVASCULAR MEDICINE,
         Philadelphia, W.B. Saunders Co., pp. 1433-34 (1997).

2        Singh, J.P., ET AL., "Prevalence of Clinical Determinants of Mitral,
         Tricuspid and Aortic Regurgitation" (The Framingham Heart Study),
         AMERICAN J. CARDIOLOGY, 83: 897-902 (1999).

3        Feigenbaum, H., ECHOCARDIOGRAPHY, Williams & Wilkins, Baltimore, (5th
         ed. 1994).

4        Weyman, A.E., PRINCIPLES AND PRACTICE OF ECHOCARDIOGRAPHY,
         Philadelphia, Lea & Febiger, (1994).

                                                                               9

<PAGE>



                  -        "Final Judicial Approval" refers to the approval of
                           the Settlement Agreement as a whole by the Court(s)
                           and such approval(s) becoming final by the exhaustion
                           of all appeals without substantial modification of
                           the order or orders granting such approval(s). Final
                           Judicial Approval shall be deemed not to have been
                           obtained in the event that Trial Court Approval is
                           denied, and the period for appealing such denial has
                           expired without any such appeal having been taken.

                  -        "Final Judicial Approval Date" shall mean the date on
                           which Final Judicial Approval occurs.

                  -        "Fiscal Year" shall mean any twelve-month period
                           beginning on the first day of the month following the
                           month in which the Final Judicial Approval Date
                           occurs. In counting Fiscal Years, the first Fiscal
                           Year shall be the year which begins on the first day
                           of the month following the Final Judicial Approval
                           Date, the second Fiscal Year shall be the twelve-
                           month period beginning on the first day of the month
                           following the first anniversary of the Final Judicial
                           Approval Date, and so forth. This definition applies
                           only to the payment terms set forth herein and has no
                           effect on the tax or accounting year of the
                           Settlement Trust.

                  -        "Initial Opt-out Period" shall mean the period to be
                           established by the Court(s) during which Class
                           Members may exercise the initial opt-out right
                           described in Section II.3.

                  -        "Mild Mitral Regurgitation" refers to mitral valve
                           regurgitation as that level is defined in Singh5
                           (1999) and measured by an echocardiographic
                           examination performed and evaluated by qualified
                           medical personnel following the protocol as outlined
                           in Feigenbaum6 (1994) or Weyman7 (1994). That degree
                           of regurgitation is determined as follows: (1) either
                           the RJA/LAA ratio is more than 5% or the mitral
                           regurgitant jet height is greater than 1 cm from the
                           valve orifice, and (2) the RJA/LAA ratio is less than
                           20%.


- --------

5        Singh, J.P., ET AL., "Prevalence of Clinical Determinants of Mitral,
         Tricuspid and Aortic Regurgitation" (The Framingham Heart Study),
         AMERICAN J. CARDIOLOGY, 83: 897-902 (1999).

6        Feigenbaum, H., ECHOCARDIOGRAPHY, Williams & Wilkins, Baltimore, (5th
         ed. 1994).

7        Weyman, A.E., PRINCIPLES AND PRACTICE OF ECHOCARDIOGRAPHY,
         Philadelphia, Lea & Febiger, (1994).

                                                                              10

<PAGE>



         -        Primary Pulmonary Hypertension ("PPH") is defined as either or
                  both of the following:

                  1.       For a diagnosis based on symptoms and findings prior
                           to death:

                           A.       (i)      Mean pulmonary artery pressure by
                                             cardiac catheterization of
                                             GREATER THAN OR EQUAL TO 25 mm
                                             Hg at rest or GREATER THAN OR
                                             EQUAL TO  30 mm Hg with exercise
                                             with a normal pulmonary artery
                                             wedge pressure LESS THAN OR EQUAL
                                             TO 15 mm Hg8; or

                                    (ii)     A peak systolic pulmonary artery
                                             pressure of GREATER THAN OR EQUAL
                                             TO 60 mm Hg measured by Doppler
                                             Echocardiography; or

                                    (iii)    Administration of Flolan to the
                                             patient based on a diagnosis of PPH
                                             with cardiac catheterization not
                                             done due to increased risk in the
                                             face of severe right heart
                                             dysfunction; and

                           B.       Medical records which demonstrate that the
                                    following conditions have been excluded by
                                    the following results9:

                                    (i)      Echocardiogram demonstrating no
                                             primary cardiac disease including,
                                             but not limited to, shunts,
                                             valvular disease (other than
                                             tricuspid or pulmonary valvular
                                             insufficiency as a result of PPH or
                                             trivial, clinically insignificant
                                             left-sided valvular regurgitation),
                                             and congenital heart disease (other
                                             than patent foramen ovale); and

                                    (ii)     Left ventricular dysfunction
                                             defined as LVEF LESS THAN 40%
                                             defined by MUGA, echocardiogram or
                                             cardiac catheterization;

                                    (iii)    Pulmonary function tests
                                             demonstrating the absence of
                                             obstructive lung disease
                                             (FEV1/FVC GREATER THAN 50% of
                                             predicted) and the absence of
                                             GREATER THAN mild restrictive
                                             lung disease (total

- --------

8        Rubin, L.J., S. Rich, PRIMARY PULMONARY HYPERTENSION, Marcel Dekker,
         Inc., New York (1997).

9        Braunwald, E., ESSENTIAL ATLAS OF HEART DISEASES, Current Medicine,
         Philadelphia, 1997, pg. 10-9.


                                                                              11

<PAGE>

                                             lung capacity GREATER THAN 60%
                                             of predicted at rest); and

                                    (iv)     Perfusion lung scan ruling out
                                             pulmonary embolism; and

                                    (v)      If, but only if, the lung scan is
                                             indeterminate or high probability,
                                             a pulmonary angiogram or a high
                                             resolution angio computed
                                             tomography scan or demonstrating
                                             absence of thromboembolic disease;
                                             and

                           C.       Conditions known to cause pulmonary
                                    hypertension8,9,10 including connective
                                    tissue disease known to be causally related
                                    to pulmonary hypertension, toxin induced
                                    lung disease known to be causally related to
                                    pulmonary hypertension, portal hypertension,
                                    significant obstructive sleep apnea,
                                    interstitial fibrosis (such as silicosis,
                                    asbestosis, and granulomatous disease)
                                    defined as greater than mild patchy
                                    interstitial lung disease and familial
                                    causes have been ruled out by a
                                    Board-Certified Cardiologist or
                                    Board-Certified Pulmonologist as the cause
                                    of the person's pulmonary hypertension.

                                                 -OR-

                  2.       For a diagnosis made after the individual's death:

                           A.       Autopsy demonstrating histopathologic
                                    changes in the lung consistent with primary
                                    pulmonary hypertension and no evidence of
                                    congenital heart disease (other than a
                                    patent foramen ovale) with left-to-right
                                    shunt, such as ventricular septal defect as
                                    documented by a Board-Certified Pathologist;
                                    and

                           B.       Medical records which show no evidence of
                                    alternative causes as described above for
                                    living persons.

                  The foregoing definition of PPH ("the PPH Definition") is
                  intended solely for the purpose of describing claims excluded
                  from the definition of Settled Claims. The Parties agree that
                  the PPH Definition includes

- --------

10       Rich, S., Editor, Executive Summary from the Symposium on Primary
         Pulmonary Hypertension, Evian, France, co-sponsored by the World Health
         Organization, http://www.who.int/ncd/cvd/pph-html. September 6-10,
         1998.

                                                                              12

<PAGE>


                  but is broader than the rare and serious medical condition
                  suffered by the individuals described in the IPPHS study.11
                  The subjects in that study exhibited significantly elevated
                  pulmonary artery pressures with an average systolic pulmonary
                  artery pressure of 88 mm Hg and average mean pulmonary artery
                  pressure of 57 mm Hg. Two-thirds of the IPPHS patients
                  demonstrated NYHA Class III or IV symptoms. While the IPPHS
                  subjects would fall within the PPH Definition, the definition
                  also includes persons with a milder, less serious medical
                  condition.

         -        "Preliminary Approval" shall mean the granting, by order of
                  the appropriate trial Court(s), of the preliminary approval(s)
                  of the Settlement Agreement sought by the Parties pursuant to
                  Section IV.3 below, and the entry of an order or orders
                  directing the issuance of notice to the Settlement Class.

         -        "Preliminary Approval Date" shall mean the date on which
                  Preliminary Approval occurs.

         -        "Released Parties" refers to those persons or entities
                  described in Exhibit "D."

         -        "Screening Period" refers to the 12-month period (or such
                  longer period that shall be permitted by the Court(s) for good
                  cause shown, but in any case not to exceed 18 months) during
                  which benefits shall be available under the Screening Program.

         -        "Screening Program" refers to the program for providing
                  transthoracic echocardiograms and interpretive physician visit
                  benefits, as set forth in Section II.1.

         -        "Settled Claims" refers to those claims set forth in Exhibit
                  "C," and shall not include any claims based upon PPH,
                  including claims for compensatory, punitive, exemplary or
                  multiple damages arising from a PPH claim.

         -        "Transthoracic Echocardiogram" means a non-invasive, standard
                  echocardiogram which includes an M-Mode and 2D echocardiogram,
                  and Doppler and color Doppler evaluations of all four chambers
                  of the heart and all four heart valves.


- --------

11       Abenhaim, L., ET AL., Appetite-Suppressant Drugs and the Risk of
         Primary Pulmonary Hypertension. International Primary Pulmonary
         Hypertension Study Group, NEW ENGLAND JOURNAL OF MEDICINE, 1996,
         335(9): 606-616.

                                                                              13

<PAGE>

         -        "Trial Court Approval" shall mean the granting, by order, of
                  the approval(s) of the Settlement Agreement by the trial
                  Court(s).


         -        "Trial Court Approval Date" shall mean the date upon which
                  Trial Court Approval occurs.

         -        "Trust" or "Settlement Trust" shall mean a trust established
                  to receive funds to be paid by AHP as provided in this MOU and
                  the Settlement Agreement.

         -        "Trustees" shall mean those individuals approved by the
                  Court(s) to administer the Settlement Trust.

2.       SCOPE OF THE SETTLEMENT CLASS

         -        The Parties shall seek certification of a nationwide class
                  solely for settlement purposes (the "Settlement Class").

         -        The Settlement Class will consist of:

                  All persons in the United States, its possessions and
                  territories who ingested Pondimin and/or Redux ("Diet Drug
                  Recipients"), or their estates, administrators or other legal
                  representatives, heirs or beneficiaries ("Representative
                  Claimants"), and any other persons asserting the right to sue
                  AHP or any Released Party independently or derivatively by
                  reason of their personal relationship with a Diet Drug
                  Recipient, including without limitation, spouses, parents,
                  children, dependents, other relatives or "significant others"
                  ("Derivative Claimants").12 The Settlement Class does not
                  include any individuals who, on or before September 30, 1999,
                  have executed releases of AHP and/or the AHP Released Parties
                  relating to claims arising from the use of Diet Drugs.

         -        There will be five subclasses as follows:

- --------

12       Claims based upon PPH, as defined in Section I.1 above, are not Settled
         Claims and may be pursued by Class Members notwithstanding the
         settlement. The existing rights of such Class Members to litigate PPH
         claims, and the defenses of AHP to such claims shall not in any way be
         altered by this settlement.

                                                                              14

<PAGE>

         -        "Subclass 1(a)" shall consist of all Diet Drug Recipients in
                  the Settlement Class (1) who ingested Pondimin and/or Redux
                  for 60 days or less, and (2) who have not been diagnosed by a
                  qualified physician as FDA Positive by an echocardiogram
                  performed after the commencement of Diet Drug use and before
                  September 30, 1999, and all Representative and Derivative
                  Claimants in the Settlement Class whose claims are based on
                  their personal or legal relationship with a Diet Drug
                  Recipient (1) who ingested Pondimin and/or Redux for 60 days
                  or less, and (2) who has not been diagnosed by a qualified
                  physician as FDA Positive by an echocardiogram performed after
                  the commencement of Diet Drug use and before September 30,
                  1999.

         -        "Subclass 1(b)" shall consist of all Diet Drug Recipients in
                  the Settlement Class (1) who ingested Pondimin and/or Redux
                  for more than 60 days, and (2) who have not been diagnosed by
                  a qualified physician as FDA Positive by an echocardiogram
                  performed after the commencement of Diet Drug use and before
                  September 30, 1999, and all Representative and Derivative
                  Claimants in the Settlement Class whose claims are based on a
                  personal or legal relationship with a Diet Drug Recipient (1)
                  who ingested Pondimin and/or Redux for more than 60 days, and
                  (2) who has not been diagnosed by a qualified physician as FDA
                  Positive by an echocardiogram performed after the commencement
                  of Diet Drug use and before September 30, 1999.

         -        "Subclass 2(a)" shall consist of all Diet Drug Recipients in
                  the Settlement Class (1) who ingested Pondimin and/or Redux
                  for 60 days or less, and (2) who have been diagnosed by a
                  qualified physician as FDA Positive by an echocardiogram which
                  was performed after the commencement of Diet Drug use and
                  before September 30, 1999, and all Representative and
                  Derivative Claimants in the Settlement Class whose claims are
                  based on a personal or legal relationship with a Diet Drug
                  Recipient (1) who ingested Pondimin and/or Redux for 60 days
                  or less, and (2) who has been diagnosed by a qualified
                  physician as FDA Positive by an echocardiogram which was
                  performed after the commencement of Diet Drug use and before
                  September 30, 1999.

         -        "Subclass 2(b)" shall consist of all Diet Drug Recipients in
                  the Settlement Class (1) who ingested Pondimin and/or Redux
                  for more than 60 days, and (2) who have been diagnosed by a
                  qualified physician as FDA Positive by an echocardiogram which
                  was performed after the commencement of Diet Drug use and

                                                                              15

<PAGE>


                  before September 30, 1999, and all Representative and
                  Derivative Claimants in the Settlement Class whose claims are
                  based on a personal or legal relationship with a Diet Drug
                  Recipient (1) who ingested Pondimin and/or Redux for more than
                  60 days, and (2) who has been diagnosed by a qualified
                  physician as FDA Positive by an echocardiogram which was
                  performed after the commencement of Diet Drug use and before
                  September 30, 1999.

         -        "Subclass 3" (which may include persons also included in
                  Subclasses 1(a) and 1(b)) shall consist of all Diet Drug
                  Recipients in the Settlement Class who have been diagnosed by
                  a qualified physician, after the commencement of Diet Drug use
                  and by the end of the Screening Period, as having Mild Mitral
                  Regurgitation but who have not been diagnosed by a qualified
                  physician as FDA Positive by an echocardiogram performed after
                  the commencement of Diet Drug use and by the end of the
                  Screening Period, and all Representative and Derivative
                  Claimants in the Settlement Class whose claims are based on a
                  personal or legal relationship with a Diet Drug Recipient who
                  has been diagnosed by a qualified physician, after the
                  commencement of Diet Drug use and by the end of the Screening
                  Period, as having Mild Mitral Regurgitation but who has not
                  been diagnosed by a qualified physician as FDA Positive by an
                  echocardiogram performed after the commencement of Diet Drug
                  use and by the end of the Screening Period.

3.       AHP'S PAYMENT OBLIGATIONS

    A.   ESTABLISHMENT OF SETTLEMENT TRUST

         -        A Settlement Trust will be established to receive the funds to
                  be paid by AHP under the terms of this settlement.

         -        The Parties agree that the Trustees will be nominated by the
                  Parties and that each nomination will be subject to agreement
                  of the Parties and subject to approval by the Court(s),
                  consistent with the provisions stated in Section IV.2 below.

         -        The Settlement Trust will begin as a reversionary trust and
                  will become non-reversionary upon Final Judicial Approval. If
                  Final Judicial Approval is not obtained, or if the MOU or
                  Settlement Agreement is terminated in accordance with its
                  terms for any other reason, all amounts remaining in the
                  Settlement Trust after payment of any charges and expenses
                  which the MOU and/or the Settlement Agreement expressly
                  authorized or required to be incurred and expended prior to
                  the reversion date, including any


                                                                              16

<PAGE>

                  amounts expended to assist in seeking Final Judicial Approval,
                  shall be returned to AHP.

         -        AHP shall have no right to any of the funds previously
                  deposited, nor to any of the funds subsequently deposited into
                  the Settlement Trust, as of the date the Trust becomes
                  non-reversionary. AHP shall have no further claim to such
                  funds for any purpose.

     B.  FUND A

         -        AHP shall make payments into Fund A as follows:

                  -        $50 million five business days after the Preliminary
                           Approval Date.

                  -        $383 million five business days after the Trial Court
                           Approval Date.

                  -        $383 million 6 months after the preceding payment of
                           $383 million.

                  -        $184 million five business days after the Final
                           Judicial Approval Date.

         -        The monies held by Fund A shall be available and shall be used
                  to pay all benefits payable from Fund A, out-of-pocket
                  expenses of Plaintiffs' Counsel approved by the Court(s) for
                  reimbursement in relation to Fund A, and all proper
                  administration expenses associated with the administration of
                  the settlement and the Settlement Trust insofar as they relate
                  to Fund A.

         -        In addition to the foregoing, AHP shall pay $200 million five
                  business days after the Final Judicial Approval Date into an
                  escrow account under the supervision of the Court(s) for
                  payment in such manner and in such amounts as the Court(s) may
                  determine are appropriate as compensation to Plaintiffs'
                  Counsel relating to Fund A, as contemplated by Section IV.6
                  hereof. AHP shall take no position on the amount of such fees
                  to be awarded as attorneys' fees or the allocation thereof.
                  Any amount in that escrow account not awarded in attorneys'
                  fees shall be returned to AHP by order of the Court(s).

         -        When the Trustees decide that Fund A's purposes have been met,
                  the remaining balance, if any, in Fund A shall be transferred
                  to


                                                                              17
<PAGE>

                  Fund B.

         -        Any transfer from Fund A to Fund B will not reduce the
                  Adjusted MAPA for the year in which any unused portion of Fund
                  A is transferred, and said transfer will not reduce the
                  maximum obligation of AHP to make payments to Fund B.

    C.   FUND B

         -        AHP shall make payments into Fund B as follows:

                  -        $25 million five business days after the Preliminary
                           Approval Date.

                  -        $625 million five business days after the Final
                           Judicial Approval Date.

                  -        The $25 million which is paid to Fund B at the
                           Preliminary Approval Date and the $625 million which
                           is paid to Fund B at the Final Judicial Approval Date
                           shall be available and shall be used to pay all Class
                           Members who qualify to receive benefits from Fund B
                           through the end of the first Fiscal Year beginning
                           after the Final Judicial Approval Date and
                           thereafter, all common benefit fees and costs awarded
                           by the Court(s) in relation to Fund B, and all proper
                           administrative expenses associated with the
                           administration of the settlement and the Settlement
                           Trust insofar as they relate to Fund B.

                  -        Beginning in the second Fiscal Year after the Final
                           Judicial Approval Date, the Trustees may request in
                           writing on a quarterly basis an additional amount,
                           said amount being referred to herein as the "Fund B
                           Deposit," needed (i) to pay claims received which
                           qualify for payment, including claims for counsel
                           fees and administrative expenses, but which have not
                           been paid due to an insufficient cash balance in Fund
                           B, and/or (ii) to maintain a $50 million reserve in
                           Fund B for administrative expenses (the
                           "Administrative Reserve"). AHP shall pay the Fund B
                           Deposit so requested no later than 15 days after the
                           date on which the Trustees provide AHP with written
                           notice of a request for a Fund B Deposit. AHP's
                           obligation to make such Fund B Deposit, however,
                           shall at all times be subject to the Adjusted MAPA.



                                                                              18

<PAGE>



                           -        The Pre-Adjusted MAPA for each Fiscal Year
                                    shall be as set forth below:


<TABLE>
<CAPTION>
                        Fiscal Year                                         Fund B
                                                                     Pre-Adjusted Maximum
                                                                    Annual Payment Amount
  <S>                                                               <C>
  2nd Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  3rd Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  4th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  5th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  6th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  7th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  8th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  9th Fiscal Year after the Final Judicial Approval Date                 $182,863,500
  10th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  11th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  12th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  13th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  14th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  15th Fiscal Year after the Final Judicial Approval Date                $182,863,500
  16th Fiscal Year after the Final Judicial Approval Date                $480,000,000
</TABLE>

                  -        In the event that the Adjusted MAPA in any Fiscal
                           Year is not required to be paid in its entirety, the
                           difference between the Adjusted MAPA for that Fiscal
                           Year and the payment amounts actually made by AHP to
                           Fund B in that Fiscal Year (the "Unused Adjusted
                           MAPA") shall accrete as follows: an average shall be
                           taken of the Unused Adjusted MAPA at the end of each
                           Fiscal quarter; that average Unused Adjusted MAPA
                           shall accrete at 6% for that year; and the Unused
                           Adjusted MAPA at the end of the fourth quarter of
                           that Fiscal Year, plus the accretion as calculated in
                           accordance with the provisions set forth above, shall
                           be added to the Adjusted MAPA available to the
                           Settlement Trust in the following year. For example
                           and by way of explanation, assume that an Unused
                           Adjusted MAPA of $50 million was generated by the end
                           of the first quarter of the third Fiscal Year and
                           remains unchanged for the next two Fiscal quarters,
                           but is reduced to $40 million by the end of the
                           fourth quarter of the Fiscal year. The average
                           quarterly Unused Adjusted MAPA for the third Fiscal
                           Year would be $47.5 million. Accreting at 6%, a total
                           accretion of $2,850,000 would then be added to the
                           Unused Adjusted MAPA of $40,000,000 at the end of the
                           fourth quarter of that Fiscal Year, resulting in a
                           total of $42,850,000 of Unused Adjusted MAPA to be
                           added to

                                                                              19
<PAGE>

                           the Adjusted MAPA available to the Settlement Trust
                           in the following Fiscal Year (the fourth Fiscal
                           Year). Because the Pre-Adjusted MAPA for the fourth
                           Fiscal Year is $182,863,500, the Adjusted MAPA for
                           that year, assuming no other adjustments, would be
                           $225,713,500. If the Trustees did not require any
                           Fund B Deposit in the fourth Fiscal Year, the
                           quarterly average of the Unused Adjusted MAPA for the
                           fourth Fiscal Year would be $225,713,500, which would
                           accrete at 6%, and the accreted amount, $239,256,310,
                           would be added to the Pre-Adjusted MAPA for the fifth
                           Fiscal Year, so that the Adjusted MAPA at the
                           beginning of the fifth Fiscal Year will be
                           $422,119,810, provided there are no further
                           adjustments.

                  -        The credits referred to in Section III.1 shall
                           accrete at 6% per year, compounded annually,
                           commencing at the end of the Fiscal quarter during
                           which each credit is generated and ending on the date
                           of the Adjusted MAPA which is reduced by the
                           application of the credit, irrespective of the actual
                           passage of time. The determination of the amount of
                           such credits generated in any Fiscal Year shall be
                           made at the end of each Fiscal Year after the Final
                           Judicial Approval Date unless an earlier
                           determination is necessary to carry out the intention
                           of the Parties. Such accreted credits shall
                           accumulate and shall be applied to reduce the
                           Adjusted MAPAs in reverse order starting with the
                           first day of the sixteenth Fiscal Year after the
                           Final Judicial Approval Date. For example and by way
                           of explanation, assuming a $1 million credit were
                           generated during the last quarter of the first Fiscal
                           Year after the Final Judicial Approval Date, and
                           assuming no other adjustments to the Adjusted MAPA,
                           this credit would accrete until the first day of the
                           sixteenth Fiscal Year after the Final Judicial
                           Approval Date, would have an accreted value of
                           $2,260,904 and would be applied at that date to
                           reduce the Adjusted MAPA for that year. As a further
                           example by way of explanation, assuming that $300
                           million of credits were generated during the last
                           quarter of the third Fiscal Year after the Final
                           Judicial Approval Date, and assuming no other
                           adjustments to the Adjusted MAPA, $238,545,295 of
                           those credits would accrete until the first day of
                           the sixteenth Fiscal Year after the Final Judicial
                           Approval Date, at which time those credits would have
                           an accreted value of $480 million and would be
                           applied at that date to eliminate the full amount of
                           the Pre- Adjusted MAPA for that year; the remaining
                           $61,454,705 of those third year credits would accrete
                           until the first day of the fifteenth Fiscal Year
                           after the Final Judicial Approval Date, at which time
                           those credits would have an accreted value of
                           $116,659,378 and would be


                                                                              20
<PAGE>

                           applied at that date to reduce the Pre-Adjusted MAPA
                           for the fifteenth Fiscal Year by that amount; the
                           Pre-Adjusted MAPA for the fifteenth Fiscal Year would
                           therefore be $66,204,122 (namely, $182,863,500 minus
                           $116,659,378).

                  -        Prior to the end of the first quarter of the
                           sixteenth Fiscal Year after the Final Judicial
                           Approval Date, the Trustees shall make a calculation
                           as to a Final Payment to be made by AHP to Fund B
                           (the "Final Payment"). The Final Payment, if any, by
                           AHP into Fund B, shall be the lesser of two amounts,
                           "X" or "Y," where:

                           -        Amount "X" refers to the projected amount of
                                    additional funds necessary to meet the
                                    obligations of Fund B. To make this
                                    projection, the Trustees shall cause an
                                    actuarial determination to be made, based on
                                    the experience of the Settlement Trust, as
                                    to the amount of additional funds, if any,
                                    which will be required to fund obligations
                                    to Class Members who have qualified or are
                                    likely in the future to qualify for benefits
                                    from Fund B and associated administrative
                                    expenses. In determining Amount "X," the
                                    Trustees shall also take into consideration
                                    the then cash balance in Fund B (including
                                    the Administrative Reserve), its projected
                                    future investment and other income, and an
                                    estimate of required future administrative
                                    expenses.

                           -        Amount "Y" refers to the difference between
                                    (i) the Adjusted MAPA computed as of the
                                    first day of the sixteenth Fiscal Year
                                    following the Final Judicial Approval Date,
                                    giving due credit for all Unused Adjusted
                                    MAPAs with 6% accretions thereon, and all
                                    credits to which AHP is entitled under the
                                    Settlement Agreement with 6% accretions
                                    thereon, and (ii) any amounts paid by AHP to
                                    Fund B during the first quarter of the
                                    sixteenth Fiscal Year.

                  -        After making the foregoing calculation, but prior to
                           payment thereof, the Trustees shall provide a report
                           to Class Counsel and to AHP setting forth the
                           Trustees' projection of the amount of additional
                           funds, if any, which will be necessary to meet the
                           obligations of Fund B, as described above. The report
                           shall contain all supporting information necessary to
                           allow Class Counsel and AHP to evaluate the accuracy
                           and reasonableness of the projection. Such supporting
                           information shall include, without limitation, the
                           Trustees' methodology for making the projection and
                           any assumptions used in making the projection. Either
                           AHP or Class Counsel shall have the right to seek any


                                                                              21
<PAGE>

                           additional information reasonably requested by them,
                           and to contest the Trustees' projections to the
                           Court(s), which shall modify such projection if it is
                           determined to be unreasonable or lacking in
                           substantial support. AHP shall make the Final Payment
                           within 15 days after a final determination of the
                           amount thereof. In the event AHP seeks a stay of such
                           determination pending appeal and posts adequate bond,
                           Class Counsel shall not oppose such a stay.

                  -        At such time as the accumulated accreted credits are
                           equal to or exceed the remaining payment obligations
                           of AHP, as calculated hereunder, the Final Payment
                           shall be deemed to have been made.

                  -        If no Final Payment is required pursuant to this
                           provision, or if a Final Payment is made or deemed to
                           have been made pursuant to the foregoing provisions,
                           AHP shall have no further obligation to make any
                           payments to Fund B under the Settlement Agreement.

                  -        The monies held by Fund B shall be available and
                           shall be used to pay all benefits payable from Fund
                           B, all common benefit fees and costs awarded by the
                           Court(s) in relation to Fund B, and all proper
                           administrative expenses associated with the
                           administration of the settlement and the Settlement
                           Trust insofar as they relate to Fund B.

         D.       OTHER PROVISIONS

                  -        The Settlement Trust shall be structured and managed
                           to qualify as a Qualified Settlement Fund under
                           Section 468B of the Internal Revenue Code and related
                           regulations and will contain customary provisions for
                           such trusts including obligations of the Settlement
                           Trust to make tax filings and to provide to AHP
                           information to permit AHP to report deductions
                           properly for tax purposes.

                  -        The Parties agree that all of the amounts being paid
                           pursuant to the terms of this MOU and the settlement
                           are being paid as damages (other than punitive
                           damages) on account of alleged physical personal
                           injuries or alleged physical sickness of the members
                           of the Settlement Class as described in Section
                           104(a)(2) of the Internal Revenue Code of 1986, as
                           amended (the "Code"). The Parties further agree that
                           the claims set forth in the definition of Settled
                           Claims in Exhibit "C" hereto have their origin in
                           such alleged physical personal injuries or physical
                           sickness.



                                                                              22

<PAGE>

                                                                              23
<PAGE>

                  -        AHP shall have no obligation to make any payments
                           pursuant to the settlement except as expressly set
                           forth herein. AHP shall have no responsibility for
                           the management of the Settlement Trust or any
                           liability to any Class Member arising from the
                           handling of claims by the Trustees.

                  -        Appropriate provisions for the termination of the
                           Settlement Trust will be agreed upon and set forth in
                           the Settlement Agreement.

4.       SECURITY ARRANGEMENTS

         -        AHP agrees that, during the period after the Trial Court
                  Approval Date and until those payments to be made five
                  business days after the Final Judicial Approval Date have been
                  made, AHP shall maintain credit facilities in an amount that
                  will at all times exceed, by not less than $1 billion, the sum
                  of (a) its outstanding commercial paper borrowings, (b) the
                  amount of any uses (other than the payments under this
                  agreement) for which such credit facilities have been
                  committed and (c) outstanding drawings under the credit
                  agreement.

         -        Fifteen days after the Final Judicial Approval Date, AHP shall
                  establish and thereafter maintain a fund (the "Security Fund")
                  consisting of high- grade marketable commercial securities (to
                  be defined in the Settlement Agreement), selected by AHP,
                  having a principal value equal to $370 million. If the credit
                  rating for AHP reported by both Moody's and Standard & Poor's
                  is below investment grade at any time during which the
                  Security Fund must be maintained hereunder, AHP shall deposit
                  additional securities as specified above having a principal
                  value of an additional $180 million.

         -        The Security Fund shall be terminated upon AHP's making, or
                  being deemed to have made, the Final Payment provided for in
                  Section I.3.C above.

         -        AHP shall be entitled to withdraw from the Security Fund all
                  income earned thereby. However, in the event that the credit
                  rating of AHP reported by both Moody's and Standard & Poors is
                  below investment grade at any time during which the Security
                  Fund must be maintained hereunder, AHP shall no longer be
                  entitled to withdraw from the Security Fund the income earned
                  thereby, except that AHP shall thereafter be entitled to
                  withdraw, at each tax payment date, such amount thereof as
                  shall equal all federal, state and local taxes payable by AHP
                  with respect to or on account of the whole amount of the
                  Security Fund. AHP shall be responsible for the payment of all
                  federal, state and

                                                                              24

<PAGE>

                  local taxes payable with respect to or on account of the
                  Security Fund.

         -        AHP shall grant to the Trustees a perfected security interest
                  in the Security Fund as collateral for AHP's obligations under
                  the Settlement Agreement. The assets in the Security Fund
                  shall at all times be owned by AHP, subject to the rights of
                  the Trust as a secured creditor.

         -        For purposes of this MOU and the Settlement Agreement, an
                  "Uncured Failure to Make Payment" is an event after the Final
                  Judicial Approval Date in which:

                  (1)      AHP fails to make a payment to Fund B which was due
                           and not timely paid and failure to make payment was
                           due to either a financial inability to pay or a
                           deliberate unwillingness to pay, such determinations
                           having been made by order of the Court(s) after an
                           evidentiary hearing; and

                  (2)      AHP fails to make that payment within thirty days
                           after such order becomes final after exhaustion of
                           all appeals, if any, or AHP fails to make that
                           payment thirty days after a trial court order
                           declaring an Uncured Failure to Make Payment and is
                           unable to obtain a stay of that order pending an
                           appeal from such order.

         -        At least thirty days prior to such an evidentiary hearing, AHP
                  and Class Counsel shall have the right to receive from the
                  Trustees such information as they reasonably request relating
                  to the Trustees' claim that such payment was due and owing, as
                  to which issue the Trustees shall have the burden of proof.

         -        In the event of an Uncured Failure to Make Payment, securities
                  and/or cash in the Security Fund having a principal value
                  equal to the entire amount of the Security Fund shall be
                  transferred to an escrow account under the supervision of the
                  Court(s), without impairing the security interest of the
                  Trust. The portion of the escrow account, if any, needed to
                  satisfy obligations of AHP under the Settlement Agreement
                  shall be paid to the Trust pursuant to order of the Court(s)
                  or on agreement of the Parties. Any unused amount of the
                  escrow account shall be returned to AHP at the time the Final
                  Payment is made or deemed to have been made. Any income earned
                  on the account shall remain the property of the account, and
                  all federal, state and local taxes payable with respect to the
                  escrow account shall be paid out of the account. Additional
                  conditions and procedures for the establishment, operation and
                  distribution of the escrow account shall be set forth in the
                  Settlement Agreement.


                                                                              25
<PAGE>


                  -        In the event of the following occurrences:

                    (1)  The occurrence of more than one Uncured Failure to Make
                         Payment within a two-year period; and

                    (2)  The depletion of the amount of the assets which AHP is
                         required to have on deposit in the Security Fund or in
                         the escrow account described above by more than fifty
                         per cent of the then-required amount of assets; and

                    (3)  A determination by the Court(s) after notice and an
                         opportunity to be heard by all interested parties that
                         the remaining assets in the Security Fund or in such
                         escrow account are not likely to be sufficient to pay
                         the remaining Fund B obligations to members of the
                         class as of that point in time;

                    then in such event all Diet Drug Recipients who (i) are
                    diagnosed as FDA Positive or as having Mild Mitral
                    Regurgitation by an echocardiogram performed after the
                    commencement of Diet Drug use and by the end of the
                    Screening Period and who have registered for settlement
                    benefits by Date 2, or (ii) are diagnosed as having
                    Endocardial Fibrosis by September 30, 2005, and have
                    registered for settlement benefits by January 31, 2006,
                    together with their associated Representative and/or
                    Derivative Claimants, if such Class Members have not
                    received Matrix-Level V benefits set forth in Exhibit "A,"
                    will have a right to opt out of the settlement and pursue
                    all of their Settled Claims (except for those claims set
                    forth in subparagraphs (5) and (7) of Exhibit "C"), against
                    AHP and the other Released Parties, including claims for
                    punitive and multiple damages. Specific procedures
                    pertaining to the exercise of such an opt-out shall be set
                    forth in the Settlement Agreement. In the event of such an
                    opt-out, neither the AHP Released Parties nor the Non-AHP
                    Released Parties may assert any defense based on any statute
                    of limitations or repose, the doctrine of laches, any other
                    defense predicated on the failure to timely pursue the
                    claim, or any defense based on "splitting" a cause of
                    action, any defense based on any release signed pursuant to
                    the Settlement Agreement, and/or any other defense based on
                    the existence of the Settlement Agreement, except to the
                    extent provided herein. In any legal action commenced by a
                    Class Member exercising a right of opt-out under these
                    circumstances, the Class Member shall reduce the amount of
                    his or her recovery by the amount of cash, if any, that the
                    Class Member has received from AHP and/or the Trust under
                    the terms of the settlement.

               -    Nothing contained in this section shall be construed to be a
                    waiver of or a limitation on rights which the Class Members,
                    Class Representatives or Trustees would otherwise have under
                    the law in the event of a breach


                                                                            26

<PAGE>


                    of the Settlement Agreement.


                                                                            27

<PAGE>



II.    CLASS MEMBER RIGHTS AND BENEFITS

     1.   SCREENING/REFUND/MEDICAL SERVICES/CASH/RESEARCH BENEFITS PAYABLE FROM
          FUND A

               A.   BENEFITS FOR CLASS MEMBERS WHO INGESTED PONDIMIN AND/OR
                    REDUX FOR MORE THAN 60 DAYS

                    -    SCREENING PROGRAM: Diet Drug Recipients in Subclass
                         1(b) will be eligible for one transthoracic
                         echocardiogram and an associated interpretive physician
                         visit. Eligible Class Members must register for this
                         benefit by Date 1. This Screening Program shall be
                         conducted for a 12-month period after Final Judicial
                         Approval, in accordance with the terms and conditions
                         set forth in the Settlement Agreement. This period may
                         be extended for up to an additional 6 months by the
                         Court(s) for good cause shown.

                    -    Diet Drug Recipients in Subclass 1(b) who do not accept
                         the Accelerated Implementation Option (SEE Section II.4
                         below) and who, independent of the Screening Program,
                         obtain a transthoracic echocardiogram after the end of
                         the Initial Opt-out Period but before the Final
                         Judicial Approval Date, may recover from Fund A the
                         lesser of (i) the Trust's cost of providing such an
                         echocardiogram and associated interpretive physician
                         visit under the Screening Program and (ii) the actual
                         amount paid for the echocardiogram by the Class Member,
                         net of amounts paid or reimbursed by an insurance
                         carrier or other third-party payor, but only in the
                         event that the settlement receives Final Judicial
                         Approval. Such a payment must be claimed by Date 2.
                         Class Members receiving such a payment may not also
                         participate in the Screening Program.

                    -    ADDITIONAL MEDICAL SERVICES OR CASH: All Diet Drug
                         Recipients in Subclass 2(b) and those Diet Drug
                         Recipients in Subclass 1(b) who have obtained an FDA
                         Positive diagnosis by a qualified physician after
                         Pondimin and/or Redux use but by the end of the
                         Screening Period, will be entitled to receive, at the
                         Class Member's election, either (i) valve-related
                         medical services up to $10,000 in value to be provided
                         by the Trust (with the services to be specified in the
                         Settlement Agreement) or (ii) $6,000 in cash. Such cash
                         payments and funds for such medical services will come
                         from Fund A. Eligible Class Members must register for
                         this benefit and make the affirmative election as to
                         whether they wish to receive cash or services by Date
                         2.



                                                                            28

<PAGE>

                                                                            29

<PAGE>


                    -    REFUND: Diet Drug Recipients in Subclasses 1(b) and
                         2(b), or their associated Representative Claimants,
                         will be eligible for a refund in the fixed amount
                         of $30 per month of use for Pondimin and $60 per
                         month of use for Redux, subject to a maximum of $500
                         per Class Member; provided, however, that such benefits
                         will be made available to members of Subclasses 1(b)
                         and 2(b) only if, and to the extent that, Fund A
                         possesses sufficient assets to pay such benefits after
                         paying or creating a reserve for payment of all other
                         authorized expenses and benefits to be provided by Fund
                         A. Eligible Class Members must register for this
                         benefit by Date 1.

            B. BENEFITS FOR CLASS MEMBERS WHO INGESTED PONDIMIN AND/OR REDUX FOR
60 DAYS OR LESS:

                    -    REFUND: Diet Drug Recipients in Subclasses 1(a) and
                         2(a) or their associated Representative Claimants will
                         be eligible for a refund in the fixed amount of $30 per
                         month of use for Pondimin and $60 per month of use for
                         Redux. Eligible Class Members must register for this
                         refund benefit by Date 1.

                    -    SCREENING PROGRAM:

                    -    In general, members of Subclass 1(a) are not entitled
                         to screening benefits.

                    -    If, however, during the Screening Period, a Diet Drug
                         Recipient in Subclass 1(a), independent of the
                         Screening Program, obtains an FDA Positive
                         transthoracic echocardiogram, he/she may recover from
                         Fund A the lesser of (i) the cost to the Trust of
                         providing such an echocardiogram and an associated
                         interpretive physician visit under the Screening
                         Program, and (ii) the actual amount paid for the
                         transthoracic echocardiogram and associated
                         interpretive physician visit by the Class Member, net
                         of amounts paid or reimbursed by an insurance carrier
                         or other third-party payor, but only in the event that
                         the settlement receives Final Judicial Approval.
                         Eligible Subclass 1(a) members must register for this
                         benefit by Date 2.

                    -    In addition, the Trustees may, in their discretion in
                         appropriate cases for compassionate and humanitarian
                         reasons, provide a transthoracic echocardiogram and
                         associated interpretive physician visit during the
                         Screening Period for members of Subclass 1(a) who are
                         Diet Drug Recipients where the Trustees determine that
                         such persons are in need of such services and otherwise



                                                                            30
<PAGE>


                         unable to obtain them or where there fare other
                         compelling reasons to provide such services to such
                         persons. Total disbursements for such services shall
                         not exceed $20 million. Eligible Subclass 1(a) members
                         must apply for such benefits by Date 1.

                    -    ADDITIONAL MEDICAL SERVICES OR CASH. All members of
                         Subclass 2(a) who are Diet Drug Recipients as well as
                         those members of Subclass 1(a) who are Diet Drug
                         Recipients and who have obtained an FDA Positive
                         diagnosis by a qualified physician after drug use but
                         by the end of the Screening Period, will be entitled to
                         receive, at the Class Member's election, either (i)
                         valve-related medical services up to $5,000 in value to
                         be provided by the Trust (with the services to be
                         specified in the Settlement Agreement) or (ii) $3,000
                         in cash. Such cash payments and funds for such medical
                         services will come from Fund A. Eligible Class Members
                         must register for this benefit and make the affirmative
                         election as to whether they wish to receive cash or
                         services by Date 2.

          C.   BENEFITS FOR ALL CLASS MEMBERS

                    -    MEDICAL RESEARCH AND EDUCATION FUND. An amount in Fund
                         A not to exceed $25 million may be used to finance
                         medical research and education related to heart
                         disease, in accordance with standards and procedures to
                         be specified in the Settlement Agreement.

                         The  Medical Research and Education Fund will be funded
                         by the transfer of up to $25 million from Fund A to an
                         organization formed for that purpose and described in
                         Subsection (c) of Section 501 of the Internal Revenue
                         Code. The management of the Medical Research and
                         Education Fund will be by an independent Board of
                         Trustees, to be appointed by the Court(s). The Parties
                         agree that the Trustees will be nominated by the
                         Parties and that each nominee will be subject to
                         agreement of the Parties and subject to Court approval.

                    -    MEDICAL/LEGAL REGISTRY. The Trustees shall apply a
                         portion of Fund A to establish, operate and maintain a
                         "Registry" to track the medical condition of Class
                         Members, both for purposes of processing claims for
                         benefits under the terms of the settlement and for
                         purposes of medical research and education. The
                         Settlement Agreement shall contain appropriate
                         provisions to assure that the identity of each such
                         Class Member shall be maintained in confidence. The
                         funds expended to create,


                                                                            31
<PAGE>


                         maintain and operate this Registry shall be considered
                         administrative expenses of Fund A and shall not reduce
                         the $25 million which is available for medical
                         education and research. The terms and conditions under
                         which the Registry is to operate shall be defined in
                         the Settlement Agreement.

                    -    In addition, the Trustees may, in their discretion, for
                         members of Subclasses 1(a) and 1(b), in cases of true
                         financial hardship provide a transthoracic
                         echocardiogram and associated interpretive physician
                         visit to such persons upon Trial Court Approval. Total
                         disbursements for such services shall not exceed $10
                         million.

               2.   COMPENSATION BENEFITS PAYABLE FROM FUND B
                    A. ELIGIBLE CLASS MEMBERS

               -    The following Class Members, and only such Class Members,
                    shall be entitled to the compensation benefits set forth on
                    the matrices in Exhibit "A" in accordance with the criteria
                    and definitions set forth in this MOU, Exhibit "A," and the
                    Settlement Agreement:

                    (1)  Diet Drug Recipients who have been diagnosed by a
                         qualified physician as FDA Positive or as having Mild
                         Mitral Regurgitation by an echocardiogram performed
                         after the commencement of Diet Drug use and by the end
                         of the Screening Period and have registered for further
                         settlement benefits by Date 2;

                    (2)  The Representative Claimants of Diet Drug Recipients
                         who have been diagnosed by a qualified physician as FDA
                         Positive or as having Mild Mitral Regurgitation by an
                         echocardiogram performed after the commencement of Diet
                         Drug use and by the end of the Screening Period, where
                         either the Diet Drug Recipient or the Representative
                         Claimant(s) for the Diet Drug Recipient has registered
                         for further settlement benefits by Date 2;

                    (3)  The Derivative Claimants of Diet Drug Recipients who
                         have been diagnosed by a qualified physician as FDA
                         Positive or as having Mild Mitral Regurgitation by an
                         echocardiogram performed after the commencement of Diet
                         Drug use and by the end of the Screening Period, where
                         the Derivative Claimants have registered for



                                                                            32
<PAGE>


                         settlement benefits by Date 2, to the extent that such
                         persons have a legally recognized claim for loss of
                         services, consortium, support, or the like, arising
                         from injury to the associated Diet Drug Recipient.

                    (4)  Diet Drug Recipients who have been diagnosed by a
                         qualified physician as having Endocardial Fibrosis by
                         September 30, 2005 and have registered for Fund B
                         benefits by January 31, 2006.

                    (5)  The Representative Claimants of Diet Drug Recipients
                         who have been diagnosed by a qualified physician as
                         having Endocardial Fibrosis by September 30, 2005,
                         where either the Diet Drug Recipient or the
                         Representative Claimant(s) of the Diet Drug Recipient
                         has registered for Fund B benefits by January 31, 2006.

                    (6)  The Derivative Claimants of Diet Drug Recipients who
                         have been diagnosed by a qualified physician as having
                         Endocardial Fibrosis by September 30, 2005, where the
                         Derivative Claimants have registered for Fund B
                         benefits by January 31, 2006, to the extent that such
                         persons have a legally recognized claim for loss of
                         services, consortium, support, or the like, arising
                         from injury to the associated Diet Drug Recipient.

               B.   BENEFITS AVAILABLE

                    -    If a Diet Drug Recipient qualifies for matrix payments
                         due to more than one condition, such Class Member shall
                         be entitled to receive only the higher of such
                         payments, but not both such payments.

                    -    Matrices A-1 and B-1 in Exhibit "A" set forth the
                         maximum aggregate amount to which the Diet Drug
                         Recipient or his or her Representative Claimants are
                         collectively entitled. Where there is more than one
                         Representative Claimant associated with any particular
                         Diet Drug Recipient eligible for such matrix benefits,
                         the Trustees and/or Claims Administrator shall allocate
                         this amount among all of the Representative Claimants.
                         Matrices A-2 and B-2 in Exhibit "A" set forth the
                         maximum aggregate amount to which all Derivative
                         Claimants associated with any particular Diet Drug
                         Recipient are collectively entitled. Where there is
                         more than one Derivative Claimant associated with any
                         particular Diet Drug Recipient eligible for such matrix
                         benefits, the Trustees and/or Claims Administrator
                         shall allocate the matrix amount among all of the
                         Derivative Claimants.



                                                                            33
<PAGE>




                                                                           34
<PAGE>



                    -    Diet Drug Recipients who have been diagnosed by a
                         qualified physician as FDA Positive (but not also as
                         having Mild Mitral Regurgitation) by the end of the
                         Screening Period and have registered for settlement
                         benefits by Date 2, and their associated Representative
                         and Derivative Claimants who have registered (or who
                         are deemed to have registered) for settlement benefits
                         by Date 2, shall be eligible for matrix payments for
                         Matrix-Level conditions resulting from the valve or
                         valves for which there was an FDA Positive diagnosis by
                         a qualified physician by the end of the Screening
                         Period, subject to the above provision that if he/she
                         qualifies for more than one benefit, he/she shall be
                         entitled to the higher benefit, but not both.

                    -    Diet Drug Recipients who have been diagnosed by a
                         qualified physician as having Mild Mitral Regurgitation
                         (but not also as FDA Positive) by the end of the
                         Screening Period and have registered for settlement
                         benefits by Date 2, and their associated Representative
                         and Derivative Claimants who have registered (or who
                         are deemed to have registered) for settlement benefits
                         by Date 2, shall be eligible for matrix payments only
                         for claims based upon the mitral valve, subject to the
                         above provision that if he/she qualifies for more than
                         one benefit, he/she shall be entitled to the higher
                         benefit, but not both.

                    -    Diet Drug Recipients who have been diagnosed by a
                         qualified physician both as FDA Positive (due to mild
                         or greater aortic regurgitation) and as having Mild
                         Mitral Regurgitation by the end of the Screening Period
                         and have registered for settlement benefits by Date 2,
                         and their associated Representative and Derivative
                         Claimants who have registered (or who are deemed to
                         have registered) for settlement benefits by Date 2,
                         shall be eligible for matrix payments based upon either
                         the aortic or the mitral valve.

                    -    Diet Drug Recipients who have been diagnosed by a
                         qualified physician as having Endocardial Fibrosis by
                         September 30, 2005, and have registered for Fund B
                         benefits by January 31, 2006, and their associated
                         Representative and Derivative Claimants who have
                         registered (or who are deemed to have registered) for
                         settlement benefits by January 31, 2006, shall be
                         entitled to the Endocardial Fibrosis benefits set forth
                         in the matrices in Exhibit "A," regardless of whether
                         or not the Diet Drug Recipient had valvular
                         regurgitation.



                                                                            35
<PAGE>


                    -    A Representative Claimant is "deemed" to have
                         registered for settlement benefits either when the
                         Representative Claimant registers for benefits or, if
                         applicable, as of the date when the Diet Drug Recipient
                         to which the claim relates has registered for
                         settlement benefits.

               C.   PAYMENT PROVISIONS

                    -    The matrix payment amounts set forth in Exhibit "A"
                         will be increased by 2% per year, compounded annually,
                         beginning one year after the Final Judicial Approval
                         Date.

                    -    A "Matrix Payment Cut-off Date" is established for
                         purposes of this settlement. The Matrix Payment Cut-off
                         Date shall be a date which is 14 years from the Final
                         Judicial Approval Date or December 31, 2015, whichever
                         is earlier. Those Class Members who fail to qualify for
                         payment on the matrices in Exhibit "A" by the Matrix
                         Payment Cut-off Date shall have no further right to
                         claim benefits under Fund B or to exercise a back-end
                         opt-out (discussed in Section II.3 below). However,
                         where a Diet Drug Recipient does qualify for payment on
                         the matrices in Exhibit "A" by the Matrix Payment
                         Cut-off Date, the Diet Drug Recipient and/or the
                         associated Representative and Derivative Claimants may
                         continue to receive higher amounts of matrix benefits,
                         if any, if the condition of the Diet Drug Recipient
                         which qualified such person for such payment progresses
                         to a more severe condition after the Matrix Payment
                         Cut-Off Date.

                    -    Once a Diet Drug Recipient has reached a matrix-level
                         of severity before the Matrix Payment Cut-off Date, the
                         Diet Drug Recipient and any associated Representative
                         and/or Derivative Claimants can step up to higher
                         matrix levels and will be paid the incremental dollar
                         amount, if any, by which the higher severity level
                         matrix payment exceeds the matrix payment previously
                         received. Notwithstanding the foregoing, Class Members
                         who seek benefits for Endocardial Fibrosis must qualify
                         for payment on the matrices for that condition by
                         September 30, 2005 and register (or be deemed to have
                         registered) for benefits by January 31, 2006.

                    -    To receive matrix benefits, the Class Member must
                         provide the Trustees or Claims Administrator with
                         appropriate documentation of the condition of the Diet
                         Drug Recipient that forms the basis for the claim,
                         including among other things, appropriate medical
                         records, a declaration under penalty of perjury from
                         the Diet Drug Recipient that, to the best of his/her
                         knowledge, such condition was not present prior to
                         usage of Pondimin and/or


                                                                            36
<PAGE>


                         Redux; and a declaration on penalty of perjury from a
                         Board-certified Cardiologist or Cardiothoracic Surgeon
                         setting forth an opinion to a reasonable degree of
                         medical certainty that (i) the Diet Drug Recipient has
                         the condition which qualifies the Class Member for a
                         particular matrix payment, including, where applicable,
                         that the causation requirements applicable to
                         conditions (b)(v) and (c) of Matrix-Level V, as defined
                         in Exhibit "A" at A-3, either are or are not present;
                         (ii) to the best of such physician's knowledge, such
                         condition was not present prior to usage of Pondimin
                         and/or Redux; and (iii) all the conditions set forth in
                         Exhibit "A" at A-2 which determine whether Matrix A-1
                         or B-1 is applicable, either are present or are not
                         present.

                    -    If the Class Member seeking a matrix payment is unable
                         to obtain the documentation described above through the
                         exercise of reasonable efforts, the Trustees and/or
                         Claims Administrator shall have the right to consider
                         other supporting documentation (as shall be further
                         specified in the Settlement Agreement) to establish the
                         Class Member's condition, subject to review by the
                         Court(s) pursuant to procedures to be set forth in the
                         Settlement Agreement. If this evidence establishes the
                         Class Member's condition, the Class Member shall be
                         entitled to receive the appropriate matrix benefits.

          3.   OPT-OUT RIGHTS
                    -    As to all opt-outs, where there is both a Diet Drug
                         Recipient or a Representative Claimant and one or more
                         Derivative Claimants, the Diet Drug Recipient's or the
                         Representative Claimant's exercise or failure to
                         exercise an opt-out right shall be binding on the
                         associated Derivative Claimant(s).

                    -    INITIAL OPT-OUT:

                           -        ELIGIBLE: All Class Members.

                           -        METHOD OF EXERCISE: Each Class Member
                                    wishing to opt out from this settlement must
                                    sign and submit timely written notice to the
                                    Court(s), to the Trustees and/or Claims
                                    Administrator and to AHP, by the expiration
                                    of the Initial Opt-out Period. The Parties
                                    will recommend that the Court(s) approve an
                                    Initial Opt-out Period of 90 days from the
                                    date on which class notice commences.



                                                                            37
<PAGE>



                           -        EFFECT OF EXERCISE: Any Class Member who
                                    timely and properly exercises an initial
                                    opt-out right may initiate, continue with,
                                    or otherwise prosecute any legal claim
                                    against AHP and the Released Parties without
                                    any limitation, impediment or defense
                                    arising from the terms of the Settlement
                                    Agreement and subject to all defenses and
                                    rights which AHP and the Released Parties
                                    would otherwise have in the absence of the
                                    Settlement Agreement. AHP agrees that it
                                    will not use this MOU or this settlement to
                                    cause delay to any Class Member who timely
                                    and properly exercises his/her initial
                                    opt-out right and initiates, continues with,
                                    or otherwise prosecutes a claim against AHP.

                           -        REVOCATION OF EXERCISE: Any Class Member may
                                    revoke an election to exercise a right of
                                    initial opt-out and thereby receive the
                                    benefits of the settlement, provided that
                                    the revocation takes place with the written
                                    consent of AHP, which shall not be
                                    unreasonably withheld.

                  -        INTERMEDIATE OPT-OUT

                           -        ELIGIBLE: All Diet Drug Recipients who are
                                    not members of Subclasses 2(a), 2(b) or 3,
                                    and who have been diagnosed by a qualified
                                    physician as FDA Positive by an
                                    echocardiogram performed after the
                                    commencement of Diet Drug use and by the end
                                    of the Screening Period, and their
                                    associated Representative and/or Derivative
                                    Claimants.

                           -        METHOD OF EXERCISE: Each Class Member
                                    wishing to exercise a right of intermediate
                                    opt-out must do so by submitting timely
                                    written notice of the Class Member's desire
                                    to exercise such right to the Court(s), to
                                    the Trustees and/or Claims Administrator and
                                    to AHP, not later than Date 2. A Class
                                    Member who wishes to exercise an
                                    intermediate opt-out right must sign a
                                    document acknowledging an understanding of
                                    the settlement rights and benefits that will
                                    be relinquished by exercise of the
                                    intermediate opt-out right. A Class Member
                                    may not exercise an intermediate opt-out
                                    right after making election to receive
                                    either $6,000 in cash or $10,000 in medical
                                    services in the case of members of Subclass
                                    1(b), pursuant to Section II.1.A above, or
                                    $3,000 in cash or $5,000 in medical benefits
                                    in the case of members of the Subclass 1(a),
                                    pursuant to Section II.1.B above.



                                                                            38
<PAGE>



                           -        EFFECT OF EXERCISE: The intermediate opt-out
                                    is subject to the following provisions. A
                                    Class Member who timely and properly
                                    exercises an intermediate opt-out right may
                                    pursue all of his or her Settled Claims
                                    (except for those claims set forth in
                                    subparagraphs (5) and (7) of Exhibit "C"),
                                    against the AHP Released Parties and/or the
                                    Non-AHP Released Parties, but may only
                                    assert a claim therein based on the heart
                                    valve of the relevant Diet Drug Recipient
                                    which was diagnosed by a qualified physician
                                    as FDA Positive by an echocardiogram
                                    performed after the commencement of Diet
                                    Drug use and by the end of the Screening
                                    Program. With respect to each Class Member
                                    who exercises the intermediate opt- out
                                    right and who initiates a lawsuit against
                                    any of the Released Parties within one year
                                    from the date on which the intermediate
                                    opt-out right is exercised, the AHP Released
                                    Parties shall not assert any defense based
                                    on any statute of limitations or repose, the
                                    doctrine of laches, any other defense
                                    predicated on the failure to timely pursue
                                    the claim, any defense based on "splitting"
                                    a cause of action, any defense based on any
                                    release signed pursuant to the Settlement
                                    Agreement, and/or any other defense based on
                                    the existence of the Settlement Agreement,
                                    except to the extent provided herein. A
                                    Class Member exercising an intermediate opt-
                                    out right may not seek punitive, exemplary,
                                    or any multiple damages against the AHP
                                    Released Parties or the Non-AHP Released
                                    Parties; provided, however, as consideration
                                    for being a Non-AHP Released Party and for
                                    receiving the benefit of this waiver of
                                    punitive, exemplary, and multiple damages,
                                    the Non- AHP Released Party must agree not
                                    to assert any defense based on any statute
                                    of limitations or repose, the doctrine of
                                    laches, or any other defense predicated on
                                    the failure to timely pursue the claim, any
                                    defense based on "splitting" a cause of
                                    action, any defense based on any release
                                    signed pursuant to the Settlement Agreement,
                                    and/or any other defense based on the
                                    existence of the Settlement Agreement,
                                    except to the extent provided herein; and
                                    provided further that if the Non-AHP
                                    Released Party so agrees, then the Class
                                    Member may not recover more than the total
                                    amount of compensatory damages he or she is
                                    entitled to from all persons or entities in
                                    connection with any claimed injury arising
                                    from his/her use of Diet Drugs. A Class
                                    Member exercising an intermediate opt-out
                                    right may not use any previous verdicts or
                                    judgments against the AHP Released Parties,
                                    or factual findings necessary to such
                                    verdicts or judgments, for purposes of
                                    establishing claims or facts in order to
                                    obtain a verdict or judgment against the AHP
                                    Released Parties under the doctrines of res
                                    judicata, collateral estoppel or other
                                    doctrines of claim or


                                                                            39
<PAGE>


                                    issue preclusion. Nor may a Class Member
                                    exercising an intermediate opt-out right
                                    seek to introduce into evidence against the
                                    AHP Released Parties, for any purpose, such
                                    a verdict, judgment, or factual finding.
                           -        SUPPLEMENTAL NOTICE: The Trustees shall give
                                    Class Members a supplemental advance notice
                                    of Date 2 which shall explain, among other
                                    things, the importance of that date.

                  -        BACK-END OPT-OUT

                           -        ELIGIBLE: As to Matrix-Level claims based
                                    upon valvular regurgitation, all Diet Drug
                                    Recipients who have been diagnosed by a
                                    qualified physician as FDA Positive or as
                                    having Mild Mitral Regurgitation by an
                                    echocardiogram performed after the
                                    commencement of Diet Drug use and by the end
                                    of the Screening Period, and who reach a
                                    matrix-level of severity after September 30,
                                    1999 but before the Matrix Payment Cut-off
                                    Date, and their associated Representative
                                    and/or Derivative Claimants, provided that
                                    the Class Member has registered or is deemed
                                    to have registered for settlement benefits
                                    by Date 2. Class Members who knew prior to
                                    September 30, 1999, that they have injury to
                                    one or more of their heart valves and a
                                    condition which would entitle them to
                                    payments on the matrices in Exhibit "A," may
                                    not exercise a back-end opt-out.

                                    As to Matrix-Level claims based upon
                                    Endocardial Fibrosis, all Diet Drug
                                    Recipients who have not received the
                                    diagnosis of Endocardial Fibrosis from a
                                    qualified physician by September 30, 1999,
                                    and who have subsequently been diagnosed by
                                    a qualified physician as having Endocardial
                                    Fibrosis by September 30, 2005, and their
                                    associated Representative and/or Derivative
                                    Claimants.

                                    Class Members who are not eligible for
                                    Matrix-Level benefits may not exercise the
                                    back-end opt-out right provided by this
                                    settlement.

                           -        METHOD OF EXERCISE: The back-end opt-out
                                    must be exercised by timely written notice
                                    to the Court(s), to the Trustees and/or
                                    Claims Administrator and to AHP, within 120
                                    days after the date on which the Class
                                    Member first knows or should have known in
                                    the exercise of reasonable diligence that
                                    the relevant Diet Drug Recipient has
                                    developed a condition which qualifies for
                                    payment on the matrices appended hereto as
                                    Exhibit "A." A Class Member who wishes to
                                    exercise a back-end opt-out right must sign
                                    a document acknowledging an understanding of
                                    the


                                                                            40
<PAGE>


                                    settlement rights and benefits that will be
                                    relinquished by exercise of the back-end
                                    opt-out. A Class Member may not exercise a
                                    back-end opt-out right after claiming any
                                    matrix payment.



                                                                            41
<PAGE>



                           -        EFFECT OF EXERCISE: The back-end opt-out is
                                    subject to the following provisions. A Class
                                    Member who timely and properly exercises a
                                    back-end opt-out may pursue all of his or
                                    her Settled Claims (except for those claims
                                    set forth in subparagraphs (5) and (7) of
                                    Exhibit "C"), against the AHP Released
                                    Parties and/or the Non-AHP Released Parties,
                                    but may only assert a claim therein as
                                    follows: (i) if such person has opted out by
                                    reason of a matrix- level of severity of a
                                    condition of one or more heart valves
                                    diagnosed by a qualified physician as FDA
                                    Positive or Mild Mitral Regurgitation by an
                                    echocardiogram performed after the
                                    commencement of Diet Drug use and by the end
                                    of the Screening Period, such lawsuit may
                                    only assert a claim based on that heart
                                    valve or valves and condition; and (ii) if
                                    such person has opted out by reason of
                                    Endocardial Fibrosis, such lawsuit may only
                                    assert a claim based on Endocardial
                                    Fibrosis. With respect to each Class Member
                                    who exercises the back-end opt-out right and
                                    who initiates a lawsuit against any of the
                                    Released Parties within one year from the
                                    date on which the back-end opt-out right is
                                    exercised, the AHP Released Parties shall
                                    not assert any defense based on any statute
                                    of limitations or repose, the doctrine of
                                    laches, any other defense predicated on the
                                    failure to timely pursue the claim, any
                                    defense based on "splitting" a cause of
                                    action, any defense based on any release
                                    signed pursuant to the Settlement Agreement,
                                    and/or any other defense based on the
                                    existence of the Settlement Agreement,
                                    except to the extent provided herein. A
                                    Class Member exercising a back-end opt-out
                                    may not seek punitive, exemplary, or any
                                    multiple damages against the AHP Released
                                    Parties or the Non- AHP Released Parties;
                                    provided, however, as consideration for
                                    being a Non-AHP Released Party and for
                                    receiving the benefit of this waiver of
                                    punitive, exemplary, and multiple damages,
                                    the Non-AHP Released Party must agree not to
                                    assert any defense based on any statute of
                                    limitations or repose, the doctrine of
                                    laches, or any other defense predicated on
                                    the failure to timely pursue the claim, any
                                    defense based on "splitting" a cause of
                                    action, any defense based on any release
                                    signed pursuant to the Settlement Agreement,
                                    and/or any other defense based on the
                                    existence of the Settlement Agreement,
                                    except to the extent provided herein; and
                                    provided further that if the Non-AHP
                                    Released Party so agrees, then the Class
                                    Member may not recover more than the total
                                    amount of compensatory damages he or she is
                                    entitled to from all persons or entities in
                                    connection with any claimed injury arising
                                    from his/her use of Diet Drugs. A Class
                                    Member exercising a back-end opt-out may not
                                    use any previous verdicts or judgments
                                    against the AHP Released Parties,



                                                                            42
<PAGE>


                                    or factual findings necessary to such
                                    verdicts or judgments, for purposes of
                                    establishing claims or facts in order to
                                    obtain a verdict or judgment against the AHP
                                    Released Parties under the doctrines of res
                                    judicata, collateral estoppel or other
                                    doctrines of claim or issue preclusion. Nor
                                    may a Class Member exercising a back-end
                                    opt- out right seek to introduce into
                                    evidence against the AHP Released Parties,
                                    for any purpose, such a verdict, judgment,
                                    or factual finding.

                  4.       ACCELERATED IMPLEMENTATION OPTION
                           -        All Class Members shall be offered, through
                                    the class notice (and may be offered through
                                    other means), the option of obtaining
                                    settlement benefits prior to the Final
                                    Judicial Approval Date (the "Accelerated
                                    Implementation Option" or "AIO") subject to
                                    the conditions defined below and those that
                                    will be set forth more fully in the
                                    Settlement Agreement.

                           -        Any Class Member may elect the AIO at any
                                    time from the Preliminary Approval Date
                                    until the Final Judicial Approval Date or,
                                    unless AHP elects to extend the offer date
                                    thereafter, the date on which it is
                                    determined that the Settlement Agreement
                                    will not receive Final Judicial Approval.
                                    Persons electing the AIO may begin receiving
                                    benefits thereunder at such time as the
                                    trial Court(s) rule on the approval or non-
                                    approval of the settlement.

                           -        Each person electing the AIO will enter into
                                    an individual agreement with AHP (the
                                    "Individual Agreements"), separate from
                                    AHP's agreement with the Settlement Class.
                                    Such Individual Agreements shall be
                                    effective prior to the Final Judicial
                                    Approval Date and, if the Settlement
                                    Agreement with the Settlement Class does not
                                    receive Final Judicial Approval or is
                                    terminated for any reason, such Individual
                                    Agreements shall nevertheless continue to be
                                    effective and binding.

                           -        The Individual Agreements shall provide that
                                    the parties thereto shall have all the same
                                    rights and obligations to one another as the
                                    benefits and rights accorded to Class
                                    Members and to AHP under the Settlement
                                    Agreement, except as provided below. Class
                                    Members will have all the rights and
                                    benefits provided in Sections II.1 and II.2,
                                    and AHP will have all the rights and
                                    benefits provided in Section III, except
                                    subsection 5 thereof. The Parties hereto
                                    will agree upon, and set forth in the
                                    Settlement Agreement, provisions
                                    establishing dates of implementation
                                    applicable to such Individual Agreements.

                           -        No persons exercising an initial opt-out
                                    will be eligible to enter into an


                                                                            43
<PAGE>


                                    Individual Agreement, unless such initial
                                    opt-out has been revoked with AHP's consent
                                    pursuant to Section II.3. Persons signing
                                    Individual Agreements will, by entering into
                                    such Individual Agreements, knowingly and
                                    affirmatively waive all intermediate and
                                    back-end opt-out rights otherwise provided
                                    by the Settlement Agreement. In addition,
                                    such persons will agree not to object to
                                    approval of the settlement by the Court(s)
                                    and will agree not to appeal from Trial
                                    Court Approval thereof.

                                    - Prior to the Final Judicial Approval Date,
                                    Fund A benefits for individuals accepting
                                    this AIO will be paid out of Fund A; Fund B
                                    benefits for eligible individuals accepting
                                    the AIO will be paid out of Fund B, and AHP
                                    shall deposit in Fund B any additional
                                    amounts needed to pay such Fund B benefits
                                    for individuals accepting the AIO.

                                    - In the event of Final Judicial Approval,
                                    all benefits due under the AIO shall be paid
                                    from Fund A or Fund B, as applicable, and
                                    AHP shall have no further obligation to make
                                    payments to Fund B for the payment of such
                                    AIO benefits, except as set forth in Section
                                    I.3.C above. In that event, AHP will receive
                                    a credit for the payment, prior to Final
                                    Judicial Approval, of such Fund B benefits
                                    pursuant to the preceding provision. That
                                    credit will be applied against the earliest
                                    payment(s) to Fund B required to be made by
                                    AHP. All Individual Agreements shall be
                                    administered after Final Judicial Approval
                                    in all respects as if they were part of the
                                    settlement, other than the fact that parties
                                    to such Individual Agreements shall have no
                                    intermediate or back-end opt-out rights.

                                    - In the Settlement Agreement, the Parties
                                    shall provide for appropriate security for
                                    the payment of benefits due under the AIO in
                                    the event that the settlement does not
                                    receive Final Judicial Approval in lieu of
                                    those set forth in Section I.4 above.

                                    - In the event that the settlement does not
                                    receive Final Judicial Approval or that the
                                    Settlement Agreement is terminated, AHP
                                    shall be obligated to pay AIO benefits
                                    directly to persons who accepted the AIO.
                                    AHP's obligations to make such payments
                                    shall be subject to the same limitation on
                                    AHP's maximum obligations as would have been
                                    applicable to its Fund A and Fund B
                                    obligations had the Settlement Agreement
                                    received Final Judicial Approval.

                                    - If the settlement fails to receive Final
                                    Judicial Approval for any reason, an
                                    agreed-upon share of the non-individual
                                    components of Fund A (including medical
                                    research, and costs of administration) will
                                    be provided by AHP, through a mechanism to
                                    be agreed upon, for the benefit of persons
                                    accepting the AIO, in accordance with terms
                                    and conditions to be specified in the
                                    Settlement Agreement, provided that
                                    administrative costs will be incurred only
                                    to the extent reasonable in light of the
                                    number of Individual Agreements in effect
                                    and the extent of


                                                                            44
<PAGE>


                                    administration required therefor.



                                                                            45
<PAGE>


                           -        If AHP exercises its "walkaway" right under
                                    Section III.5 of this MOU, the Individual
                                    Agreements previously entered into shall
                                    nevertheless be binding and effective on AHP
                                    and the other parties thereto. The exercise
                                    of the walkaway right by AHP will not affect
                                    its obligations to those Class Members who
                                    have accepted the AIO prior to AHP's
                                    exercise of its walkaway right.

                           -        The Parties shall ask the Court(s) to
                                    supervise the award of attorneys' fees
                                    relating to the Individual Agreements, as
                                    set forth in Section IV.6 below, whether or
                                    not the settlement receives Final Judicial
                                    Approval.

         III.     AHP RIGHTS AND BENEFITS

                  1.       CREDITS

                           -        For initial, intermediate, and/or back-end
                                    opt-outs, AHP shall receive credits against
                                    its Fund B obligations in the event that
                                    these individuals subsequently receive
                                    payments from AHP pursuant to judgments or
                                    settlements. The material terms of the
                                    credits are outlined in Exhibit "B" and
                                    shall be set forth in full in the Settlement
                                    Agreement.

                           -        In order to qualify for the credits set
                                    forth in Exhibit "B," AHP must provide the
                                    Trustees or Claims Administrator with
                                    appropriate documentation of the condition
                                    of the Diet Drug Recipient for which a
                                    payment was made and for which credit is
                                    claimed, including, among other things,
                                    appropriate medical records and a
                                    declaration on penalty of perjury from a
                                    Board-certified Cardiologist or
                                    Cardiothoracic Surgeon setting forth an
                                    opinion to a reasonable degree of certainty
                                    that (i) the Diet Drug Recipient has the
                                    condition which would otherwise qualify a
                                    Class Member for a particular matrix
                                    payment, including, where applicable, that
                                    the causation requirements applicable to
                                    conditions (b)(v) and (c) of Matrix-Level V,
                                    as defined in Exhibit "A" at A-3, either are
                                    or are not present; (ii) to the best of such
                                    physician's knowledge, such condition was
                                    not present prior to usage of Pondimin
                                    and/or Redux; and (iii) all the conditions
                                    set forth in Exhibit "A" at A-2 which
                                    determine whether Matrix A-1 or B-1 are
                                    applicable, either are present or are not
                                    present.

                           -        If AHP is unable to obtain the documentation
                                    described above in the exercise of
                                    reasonable diligence, the Trustees and/or
                                    Claims Administrator shall have the right to
                                    consider other supporting documentation (as
                                    shall be further specified in the Settlement
                                    Agreement) to establish the Class Member's
                                    condition, subject to review by the Court(s)
                                    pursuant to procedures to be set forth in
                                    the Settlement Agreement. If this evidence
                                    establishes the Class Member's condition,


                                                                            46
<PAGE>



                                    AHP shall be entitled to the claimed credit.



                                                                            47
<PAGE>


         2.       EFFECT ON CLAIMS

                           -        Upon Final Judicial Approval, the Settlement
                                    Agreement and any order(s) approving the
                                    Settlement will release all Settled Claims
                                    on behalf of all Class Members against AHP
                                    and other Released Parties, except those
                                    claims asserted by Class Members upon a
                                    timely and proper exercise of any applicable
                                    opt-out right granted by the settlement. In
                                    addition, each Class Member who accepts
                                    benefits pursuant to this settlement shall
                                    execute an individual release of all his/her
                                    Settled Claims against AHP and other
                                    Released Parties. This individual release
                                    will be ineffective, null and void as to
                                    those claims which, under the terms of this
                                    settlement, may be asserted by the Class
                                    Member upon a timely and proper exercise of
                                    any applicable opt-out right granted by the
                                    settlement.

                           -        Settled Claims are those described in
                                    Exhibit "C" hereto. Settled Claims do not
                                    include claims based on PPH.

                           -        For purposes of any statute of limitations
                                    or similar time bar, the AHP Released
                                    Parties shall not assert that a Class Member
                                    actually had PPH unless and until the
                                    condition of the Class Member meets the
                                    definition of PPH set forth in this MOU and
                                    in the Settlement Agreement.

                           -        In the event that a Class Member initiates a
                                    claim based on PPH, the AHP Released Parties
                                    shall not assert a defense based on
                                    "splitting" of claims, causes of action
                                    and/or parties by virtue of the fact that
                                    the Class Member is included in the
                                    Settlement, but the claim based on PPH is
                                    not a Settled Claim.

                           -        The Settlement Agreement shall set forth the
                                    form(s) of release necessary to effectuate
                                    this settlement and effectively to provide
                                    AHP all the relief contemplated hereby. Such
                                    release shall contain, INTER ALIA, a
                                    covenant not to sue AHP or other Released
                                    Parties on any Settled Claim.

                           -        The Released Parties are those described in
                                    Exhibit "D" hereto.

                           -        Complaints asserting all Settled Claims on
                                    behalf of the Settlement Class will be
                                    dismissed with prejudice upon Trial Court
                                    Approval. Such dismissals would be vacated
                                    in the event that the settlement does not
                                    receive Final Judicial Approval.

                           -        After Date 2, the following persons shall
                                    have no further right to any benefits under
                                    the settlement and shall have no right to
                                    pursue any Settled Claims against AHP or any
                                    Released Party, except to the extent such
                                    person timely and properly exercises, or has
                                    exercised, an initial,


                                                                            48
<PAGE>


                                    intermediate or back-end opt-out:

                                    (1)      with respect to all Settled Claims
                                             other than those based on
                                             Endocardial Fibrosis, any Class
                                             Member asserting a claim based on a
                                             Diet Drug Recipient who: (a) has
                                             not been diagnosed by a qualified
                                             physician as FDA Positive nor as
                                             having Mild Mitral Regurgitation by
                                             an echocardiogram performed after
                                             the commencement of Diet Drug use
                                             and by the end of the Screening
                                             Period, or (b) has been diagnosed
                                             by a qualified physician as FDA
                                             Positive or as having Mild Mitral
                                             Regurgitation by an echocardiogram
                                             performed after the commencement of
                                             Diet Drug use and by the end of the
                                             Screening Period, but the Class
                                             Member has not registered or been
                                             deemed to have registered for
                                             settlement benefits by Date 2.

                                    (2)      with respect to Settled Claims
                                             based on Endocardial Fibrosis, any
                                             Class Member asserting a claim
                                             based on a Diet Drug Recipient who:
                                             (a) has not been diagnosed by a
                                             qualified physician as having
                                             Endocardial Fibrosis by September
                                             30, 2005, or (b) has been diagnosed
                                             by a qualified physician as having
                                             Endocardial Fibrosis by September
                                             30, 2005, but the Class Member has
                                             not registered or been deemed to
                                             have registered for settlement
                                             benefits by January 31, 2006.

         3.       PROTECTION OF AHP FROM CLAIMS BY NON-SETTLING DEFENDANTS

                           -        "Non-Settling Defendants" (as defined in
                                    Exhibit "E") in any present or future
                                    litigation involving Pondimin and/or Redux
                                    shall be enjoined and barred from commencing
                                    or prosecuting any claim against AHP or any
                                    other Released Party, including claims for
                                    contribution and/or non- contractual
                                    indemnity, to the extent consistent with the
                                    terms of Exhibit "E."

                           -        All such claims pending against AHP or any
                                    other Released Party in any court shall be
                                    dismissed with prejudice upon Trial Court
                                    Approval. Such dismissals would be vacated
                                    in the event that the settlement does not
                                    receive Final Judicial Approval.

                           -        The Settlement Agreement shall contain
                                    protection for Non-Settling Defendants as
                                    provided in Exhibit "E" hereto, which shall
                                    be set forth in full in the Settlement
                                    Agreement.




                                                                            49
<PAGE>




         4.       PROTECTION OF AHP FROM POSSIBLE SUBROGATION CLAIMS

                           -        To the extent that any person has rights of
                                    subrogation by virtue of a payment or
                                    payments made to or for the benefit of any
                                    specific Class Member who has not properly
                                    and timely exercised a right of opt-out,
                                    such rights of subrogation may be asserted
                                    with respect to the Trustees' obligation to
                                    make payments to that Class Member from Fund
                                    B but shall not be asserted directly against
                                    AHP and/or the Released Parties except to
                                    the extent required by applicable Federal or
                                    State law. AHP will promptly notify the
                                    Trustees and/or Claims Administrator and the
                                    affected Class Member of the assertion of
                                    such a subrogation claim against AHP. The
                                    Court(s) shall enter a bar order to preclude
                                    the assertion of such subrogation claims
                                    against AHP and/or the Released Parties,
                                    except to the extent that it would be
                                    impermissible to bar such claims under
                                    provisions of applicable law.

                           -        The Trustees and/or Claims Administrator
                                    shall provide notice of subrogation claims
                                    received by the Trustees to affected Class
                                    Members and afford them an opportunity to
                                    contest, otherwise object to or compromise
                                    any such claims. In making distribution of
                                    any amounts to which Class Members are
                                    entitled from Fund B, the Trustees shall
                                    recognize and pay subrogation claims from
                                    the amount otherwise payable to such Class
                                    Member, but only to the extent that the
                                    subrogation claim is recognized by
                                    applicable law. Unless the law clearly sets
                                    forth different principles, the Trustees
                                    shall not recognize a subrogation claim
                                    unless: (1) it is affirmatively brought to
                                    their attention prior to distribution of
                                    Funds to a Class Member; (2) it is based on
                                    a positive provision of law or a valid
                                    enforceable contract; (3) the putative
                                    subrogee clearly establishes that the
                                    subrogee actually made a payment or payments
                                    to or for the benefit of the Class Member
                                    which is of a type that the putative
                                    subrogee would be entitled to recover
                                    against AHP and/or the Released Parties, and
                                    then (4) only to the extent of the actual
                                    payment made less an equitable debit for
                                    attorneys' fees, and any other allowable or
                                    appropriate charges against the putative
                                    subrogee.

         5.       WALKAWAY RIGHTS
                           -        AHP shall have the option to terminate and
                                    withdraw from the Settlement Agreement, in
                                    its sole discretion, based upon the number
                                    of persons who have timely and properly
                                    elected during the Initial Opt-Out Period to
                                    be excluded from the Settlement Class. If
                                    AHP elects to exercise this walkaway right,
                                    it shall do so within 60 days of the close
                                    of the Initial Opt-out Period.





                                                                            50
<PAGE>




                           -        The exercise of this walkaway right by AHP
                                    will not affect its obligation to provide
                                    the benefits to those Class Members who have
                                    accepted the Accelerated Implementation
                                    Option prior to AHP's exercise of its
                                    walkaway right.

         6.       LIMITATION ON FINANCIAL OBLIGATIONS

                           -        The maximum amount that AHP shall be
                                    obligated to pay under this MOU and under
                                    the Settlement Agreement shall be AHP's
                                    obligation to make the payments to Fund A
                                    and the associated escrow agent as specified
                                    in Section I.3.B and AHP's obligation to
                                    make payments to Fund B in accordance with
                                    Section I.3.C. These limitations shall also
                                    apply to AHP's obligations under Individual
                                    Agreements entered into pursuant to the
                                    Accelerated Implementation Option.

IV.      SETTLEMENT IMPLEMENTATION

         1.       GENERAL

                           -        In order to become effective, the settlement
                                    must receive Final Judicial Approval, except
                                    as to the Accelerated Implementation Option
                                    and as otherwise expressly provided herein.

                           -        The Parties recommend that the Court(s)
                                    establish an Advisory Committee of Class
                                    Counsel, which would consist of counsel
                                    actively involved in State and Federal Diet
                                    Drug Litigation. The purpose of the Advisory
                                    Committee of Class Counsel would be to
                                    advise the Trustees concerning the proper
                                    operation and implementation of the
                                    Settlement Agreement.

                           -        The Parties recommend that, as part of the
                                    process of administering the settlement, the
                                    Court(s) shall appoint one or more
                                    individuals to provide information to Class
                                    Members and their counsel concerning the
                                    terms and implementation of the Settlement
                                    Agreement, subject to such guidelines as the
                                    Court(s) shall set forth. The sums expended
                                    for the activities of such persons shall be
                                    considered administrative expenses of the
                                    Trust which will be paid by Fund A as
                                    incurred, even if prior to Final Judicial
                                    Approval.

         2.       JURISDICTION

                           -        Beginning with the execution of this MOU,
                                    the Parties shall confer with the Federal
                                    Court and the State Courts which, as of the
                                    date of this MOU, have issued orders
                                    certifying or conditionally certifying
                                    statewide class actions involving Pondimin
                                    and/or Redux and recommend that such Courts
                                    confer with one another in an effort to
                                    establish a jurisdictional and
                                    administrative mechanism or mechanisms to
                                    effectuate this


                                                                            51
<PAGE>
<PAGE>

                           settlement.

                  -        A trust shall be established and maintained to
                           receive and administer Fund A and Fund B. During the
                           period of time that the benefits of the Screening
                           Program are being provided to Class Members, the
                           majority of the Trustees or Administrators shall be
                           appointed and/or approved by the state courts which
                           have certified statewide medical monitoring classes
                           as of the date of this MOU.

         3.       APPROVAL PROCESS AND NOTICE PROVISIONS

                  -        Promptly after executing this MOU, the Parties shall
                           jointly move the New Jersey Court for a stay of
                           further proceedings in VADINO.

                  -        Within 45 days after executing this MOU, the Parties
                           shall use their best efforts and negotiate in good
                           faith to prepare and execute a Settlement Agreement
                           which shall set forth in full all terms and
                           conditions of this settlement.

                  -        Within 10 days after executing the Settlement
                           Agreement, the Parties shall jointly move the
                           Court(s) for conditional certification of the
                           Settlement Class, Preliminary Approval of the
                           settlement, authorization to disseminate the class
                           notice and the designation of an Initial Opt-out
                           Period to terminate 90 days after the date on which
                           class notice commences in accordance with applicable
                           orders granting Preliminary Approval of the
                           settlement.

                  -        The proposed form of the notice and proposed methods
                           of distribution shall be mutually agreed upon by the
                           Parties and jointly proposed to the Court(s). Fund A
                           will pay 50% and Fund B will pay 50% of the total
                           costs of printing, publishing and otherwise
                           disseminating the notice. In the event that the
                           settlement does not receive Final Judicial Approval,
                           the costs of printing, publishing or otherwise
                           disseminating notice shall be borne by AHP, and none
                           of the Funds will therefore have any obligation to
                           return or refund such costs to AHP.

                  -        The additional procedures for effectuating and
                           obtaining Final Judicial Approval of the settlement
                           will be set forth in detail in the Settlement
                           Agreement.

                  -        The Parties shall cooperate in all of these filings
                           and proceedings and in any related appeals.

                  -        AHP shall retain its right to contest class
                           certification for litigation purposes.


                                                                              52
<PAGE>


         4.       CONDITIONS

                  -        AHP's obligations under the MOU and the Settlement
                           Agreement, other than its obligations to Class
                           Members who accept its AIO, will be subject to
                           conditions to be specified in the Settlement
                           Agreement, including:

                           -        Final Judicial Approval of the Settlement
                                    Agreement.

                           -        The Parties' agreement as to the Court(s) to
                                    which the settlement shall be submitted for
                                    approval, the aspects of the settlement to
                                    be submitted to each such court, the
                                    Court(s) to be requested to take each of the
                                    judicial actions contemplated herein, and
                                    the Court(s) which are to supervise
                                    subsequent implementation of the settlement.

                           -        Entry of the stays described in Section IV.3
                                    above.

                           -        Entry of an order of the Court(s) barring
                                    subrogation claims against AHP and barring
                                    third-party claims for contribution and
                                    indemnity against AHP and the Released
                                    Parties, in accordance with Section III.3
                                    and III.4 and Exhibit "E" hereto,
                                    respectively.

                           -        Filing and dismissal with prejudice of the
                                    Class Representatives' complaint(s)
                                    asserting all Settled Claims on behalf of
                                    the Settlement Class and exhaustion of all
                                    appeals therefrom.

                           -        Prior approval of the MOU and the Settlement
                                    Agreement by AHP's Board of Directors, and
                                    by the Plaintiffs' Management Committee in
                                    MDL 1203.

                           -        Entry of such other orders as are needed to
                                    effectuate the terms of the settlement.

                  -        The Parties may waive any of the foregoing
                           conditions, but may otherwise terminate this MOU
                           and/or the Settlement Agreement if these conditions
                           are not satisfied in any respect.

         5.       ADMINISTRATION OF CLAIMS
                  -        Provisions will be agreed upon and set forth in the
                           Settlement Agreement which assure to the reasonable
                           satisfaction of AHP and the Class Representatives
                           that the settlement benefits and rights shall be
                           administered in a manner which reasonably ensures
                           that Class Members who claim benefits are actually
                           entitled to receive them and that payments are not
                           made to Class Members who are not entitled to receive


                                                                              53
<PAGE>

                           them. Accordingly, the Settlement Agreement
                           (including attachments thereto) will set forth
                           provisions including, but not limited to:

                           -        Qualifications for persons administering
                                    echocardiograms or other diagnostic
                                    procedures.

                           -        Qualifications for health care professionals
                                    who interpret the echocardiograms or other
                                    diagnostic procedures.

                           -        Protocols to be followed in the
                                    administration of these diagnostic
                                    procedures.

                           -        Information to be obtained from registering
                                    Class Members and claimants (including
                                    verification of drug use and medical
                                    condition).

                           -        Qualifications of Trustees and Claims
                                    Administrator.

                           -        Ability of Trustees to obtain expert medical
                                    advice or other analyses in connection with
                                    claims for benefits, if appropriate and
                                    necessary.

                           -        Penalties of perjury for false claims.

                           -        AHP's right to obtain, at its expense, an
                                    independent transthoracic echocardiogram of
                                    any Class Member or any party to an
                                    Individual Agreement seeking any benefits,
                                    pursuant to the Settlement Agreement or
                                    pursuant to such Individual Agreement.

                           -        Review and auditing procedures, including by
                                    the Parties, for all elements of the claims
                                    process (including but not limited to
                                    registration, echocardiogram, diagnostic
                                    reports and claim forms, claims evaluation
                                    and claims determination process).

                           -        Periodic reporting of claims receipt,
                                    processing, classification, payment, and
                                    auditing.

                           -        Resolution of any factual or other disputes
                                    which arise in administration of claims.

                           -        Supervision of the implementation of the
                                    settlement by the Court(s).



                                                                              54
<PAGE>

         6.       ATTORNEYS' FEES

                  -        In the event that the settlement receives Final
                           Judicial Approval, the Court(s) shall award counsel
                           fees and litigation expenses from the settlement
                           funds to those attorneys who contributed to the
                           creation of the settlement fund through work devoted
                           to the "common benefit" of Class Members, including
                           any attorney who believes that he or she conferred
                           benefits upon the class through state court
                           litigation ("Common Benefit Attorneys") in accordance
                           with applicable principles of law and subject to the
                           following provisions.

                           -        AHP agrees to pay Class Counsel and Common
                                    Benefit Attorneys an attorney's fee in an
                                    amount of up to $200,000,000 for the
                                    services related to Fund A, subject to
                                    approval of the appropriate Court(s). To the
                                    extent that such fees are awarded by the
                                    Court(s), they shall be paid by the escrow
                                    agent from the escrow account into which AHP
                                    is required to deposit said amounts for that
                                    purpose, as set forth above in Section
                                    I.3.B.

                           -        For purposes of awarding attorneys' fees
                                    from Fund B, AHP agrees that attorneys' fees
                                    should be awarded and paid as a percentage
                                    of or otherwise based on the net present
                                    value, as of the Final Judicial Approval
                                    Date, of the maximum amounts which AHP may
                                    be legally obligated to pay to Fund B for
                                    the benefit of the class, regardless of the
                                    amount of claims actually paid at any given
                                    point in time, pursuant to the principle
                                    expressed in the case law, SEE BOEING V. VAN
                                    GEMERT, 444 U.S. 472 (1980). The Parties
                                    stipulate that for purposes of calculating
                                    payment of attorneys' fees only, the net
                                    present value, as of the Final Judicial
                                    Approval Date, of the maximum amounts which
                                    AHP may be legally obligated to pay to Fund
                                    B for the benefit of the class is
                                    $2,550,000,000. The Parties further agree
                                    that the attorneys' fees payable from Fund B
                                    to counsel for the Settlement Class ("Class
                                    Counsel") and Common Benefit Attorneys from
                                    Fund B shall not exceed $229 million, which
                                    is 9% of the $2,550,000,000 dollar amount,
                                    and that the actual amount of attorneys'
                                    fees shall be as determined by the Court(s).
                                    Attorneys representing individual Class
                                    Members who receive a matrix payment from
                                    Fund B shall be entitled to receive an
                                    attorneys' fee in that percentage of the
                                    amount due to the Class Member which is
                                    determined by subtracting 9% from the
                                    percentage amount of the contingent fee to
                                    which the attorney is entitled under any
                                    valid written contingent fee agreement with
                                    the Class Member. Attorneys may also recover
                                    reimbursement of reasonable out-of-pocket
                                    costs out of matrix payments from Fund B, to
                                    the extent authorized in the document
                                    evidencing the attorney's retention and the
                                    attorney's fee agreement with the Class
                                    Member. It is expected that the Trustees
                                    will not honor contingent fee agreements
                                    with private counsel which were



                                                                              55
<PAGE>

                                    entered into in violation of applicable law.

                  -        In the event that the settlement does not receive
                           Final Judicial Approval, AHP shall make a payment for
                           attorneys' fees for Fund A benefits paid or provided
                           under the AIO to an account to be established as
                           shall be set forth in the Settlement Agreement and
                           supervised by the Court(s). The first such payment
                           shall be in the amount of 20% of the dollar value of
                           all Fund A benefits paid or provided to individuals
                           under the AIO as of the date of such fee payment. At
                           quarterly intervals thereafter, AHP shall pay into
                           the account an amount equal to 20% of the dollar
                           value of all Fund A benefits paid or provided to
                           individuals under the AIO during the preceding
                           quarter. Any amounts paid into this account which are
                           not awarded in attorneys' fees shall be returned to
                           AHP by order of the Court(s). Any attorney, including
                           any attorney who believes that he or she conferred
                           benefits upon individuals electing the AIO through
                           state court litigation, may apply to the Court(s) for
                           a portion of the amount deposited in such account and
                           shall be entitled to payment of such common benefit
                           fees in accordance with applicable provisions of law.
                           Those accepting the AIO must expressly agree to this
                           provision regarding fees as a condition to exercising
                           the option.

                  -        Prior to the time that the settlement receives Final
                           Judicial Approval or in the event that the settlement
                           does not receive Final Judicial Approval, AHP shall
                           deduct from any Fund B benefits paid to those
                           accepting the AIO an amount equal to 9% of the
                           aggregate amount being paid and shall deposit such
                           amounts in the account to be established as shall be
                           set forth in the Settlement Agreement and supervised
                           by the Court(s). Any attorney, including any attorney
                           who believes that he or she conferred benefits upon
                           individuals electing the AIO through state court
                           litigation, may apply to the Court(s) for a portion
                           of the amount deposited in such account and shall be
                           entitled to payment of such common benefit fees and
                           costs in accordance with applicable provisions of
                           law. Attorneys representing individual Class Members
                           who receive Fund B benefits under the AIO shall be
                           entitled to receive from such Class Members, and not
                           from the account supervised by the Court(s),
                           attorneys' fees in that percentage of the amount due
                           to the Class Member which is determined by
                           subtracting 9% from the percentage amount of the
                           contingent fee to which the attorney is otherwise
                           entitled under any valid written contingent fee
                           arrangement with the Class Member. Those accepting
                           the AIO must expressly agree to this provision
                           regarding fees as a condition to exercising the
                           option.

                  -        In the event that the settlement receives Final
                           Judicial Approval, no additional attorneys' fees or
                           litigation expenses shall be paid for benefits
                           conferred on those individuals who accepted the AIO .


                                                                              56
<PAGE>

         7.       OTHER PROVISIONS

                  -        This MOU and the Settlement Agreement shall be
                           binding on the successors and assigns of the Parties.

                  -        None of the Parties to the settlement, including AHP,
                           the Released Parties, or any Class Member, shall
                           offer the terms of this MOU or the Settlement
                           Agreement into evidence or otherwise rely on the
                           terms of this settlement in any judicial proceeding,
                           except insofar as it is necessary to enforce the
                           terms of the settlement or insofar as it is
                           appropriate under the terms of Section IV.3 above or
                           as otherwise contemplated hereby.

                  -        As soon as practicable after the execution of the
                           MOU, the Parties shall take all steps which are
                           reasonably necessary to enable the Trust promptly to
                           provide Fund A benefits upon Final Judicial Approval
                           to all Class Members not exercising initial opt-out
                           rights. This includes reasonable and necessary steps
                           to establish the Settlement Trust, to establish a
                           mechanism to operate the Settlement Trust and
                           administer claims, to solicit, receive and process
                           claims from Class Members which will be necessary to
                           provide benefits to Class Members, to establish a
                           mechanism to provide medical screening, services and
                           cash to members of the class, to communicate with
                           Class Members and like activities. These expenses
                           shall not exceed $25 million. In the event that the
                           settlement is not approved, AHP will not be entitled
                           to a refund of any of the money spent for these
                           purposes.

                  -        The Parties shall address in the Settlement Agreement
                           how disputes between the Parties and/or between Class
                           Members and the Trust shall be resolved.

                  -        No provision of this MOU or any Exhibit thereto is
                           intended to create any third-party beneficiary to
                           this MOU.

                  -        Upon execution of this MOU, AHP and Class Counsel
                           shall jointly establish a toll-free telephone number
                           and web site for persons requesting additional
                           information regarding the settlement. This number
                           shall be used to record the names and addresses of
                           such individuals and other information, so that
                           individual notice concerning the settlement may be
                           provided to them. These names and addresses shall be
                           kept strictly confidential and shall not be disclosed
                           to any person or used for any purpose other than for
                           issuance of settlement notice upon prior order of the
                           Court(s). AHP shall pay all costs relating to the
                           toll-free telephone line. In the event that the
                           settlement receives Final Judicial Approval, all
                           expenditures made by AHP in relation to the toll-free


                                                                              57
<PAGE>

                           telephone line shall be considered administrative
                           expenses of Fund A, and AHP shall receive a credit in
                           the amount of all such expenditures in calculating
                           its next payment to Fund A.

         IN WITNESS WHEREOF, the Parties have duly executed this Memorandum of
Understanding Concerning Settlement of Diet Drug Litigation on this 7th day of
October, 1999.

AMERICAN HOME PRODUCTS CORPORATION



BY:
   ----------------------------------
       LOUIS HOYNES, GENERAL COUNSEL


                                 CLASS COUNSEL


- ---------------------------------
ARNOLD LEVIN, ESQUIRE
LEVIN, FISHBEIN, SEDRAN & BERMAN
510 WALNUT STREET, SUITE 500
PHILADELPHIA, PA  19106
215-592-1500


- ---------------------------------
MICHAEL D. FISHBEIN, ESQUIRE
LEVIN, FISHBEIN, SEDRAN & BERMAN
510 WALNUT STREET, SUITE 500
PHILADELPHIA, PA  19106
215-592-1500


- ---------------------------------
STANLEY CHESLEY, ESQUIRE
WAITE, SCHNEIDER, BAYLESS & CHESLEY
1513 CENTRAL TRUST TOWER
FOURTH & VINE STREETS
CINCINNATI, OH  45202
513-621-0267


- ---------------------------------
JOHN J. CUMMINGS, ESQUIRE
CUMMINGS, CUMMINGS & DUDENHEFER
416 GRAVIER STREET
NEW ORLEANS, LA  70130
1-504-586-0000

FOR THE
PLAINTIFFS' MANAGEMENT COMMITTEE
- ---------------------------------
GENE LOCKS, ESQUIRE
GREITZER & LOCKS
1500 WALNUT STREET, 20TH FLOOR
PHILADELPHIA, PA  19102
800-828-3489


- ---------------------------------
SOL H. WEISS, ESQUIRE
ANAPOL, SCHWARTZ, WEISS, COHAN,
         FELDMAN & SMALLEY, P.C.
1900 DELANCEY PLACE
PHILADELPHIA, PA  19103
215-735-2098


- ---------------------------------
CHRISTOPHER PLACITELLA, ESQUIRE
WILENTZ, GOLDMAN & SPITZER
90 WOODBRIDGE CENTER DRIVE
SUITE 900, BOX 10



                                       58

<PAGE>

WOODBRIDGE, NJ  07095-0958
732-636-8000


FOR SUBCLASS 1(a):



- ---------------------------------
DIANNE NAST, ESQUIRE
RODA & NAST
801 ESTELLE DRIVE
LANCASTER, PA  17601
717-892-3000




FOR SUBCLASS 1(b):



- ---------------------------------
RICHARD LEWIS, ESQUIRE
COHEN, MILSTEIN, HAUSFELD & TOLL
1100 NEW YORK AVENUE, N.W.
SUITE 500, WEST TOWER
WASHINGTON, DC  20005-3934
202-408-4600



FOR SUBCLASS 2(a):



- ---------------------------------
MARK W. TANNER, ESQUIRE
FELDMAN, SHEPHERD & WOHLGELERNTER
1845 WALNUT STREET, 25TH FLOOR
PHILADELPHIA, PA 19103
215-567-8300
FOR SUBCLASS 2(b):



- ---------------------------------
R. ERIC KENNEDY, ESQUIRE
WEISMAN, GOLDBERG, WEISMAN & KAUFMAN
1600 MIDLAND BUILDING
101 PROSPECT AVENUE WEST
CLEVELAND, OH  44115
216-781-1111



FOR SUBCLASS 3:



- ---------------------------------
RICHARD WAYNE, ESQUIRE
STRAUSS & TROY
THE FEDERAL RESERVE BUILDING
150 EAST 4TH
CINCINNATI, OH  45202-4018
513-621-2120




                                       59

<PAGE>


                             FUND B PAYMENT MATRICES


This Exhibit contains (1) the matrices that are used to determine the amount of
matrix benefits under Fund B, (2) criteria for the application of the matrices,
and (3) definitions of the levels of severity contained on the matrices.



EXHIBIT "A" TO MOU                  PAGE 1 OF 1                  ORIGINAL 4 OF 4

<PAGE>





                             FUND B PAYMENT MATRICES

Matrix A-1*                 AGE AT DIAGNOSIS/EVENT

<TABLE>
<CAPTION>

<S>          <C>                        <C>                <C>                 <C>                <C>                <C>
Severity     LESS THAN OR EQUAL TO 24           25-29              30-34             35-39              40-44            45-49
- ------------------------------------------------------------------------------------------------------------------------------------
I       $       123,750                 $       117,563    $       111,685     $       106,100    $       100,795    $      95,755
II      $       643,500                 $       611,325    $       580,759     $       551,721    $       524,135    $     497,928
III     $       940,500                 $       893,475    $       848,801     $       806,361    $       766,043    $     727,741
IV      $     1,336,500                 $     1,269,675    $     1,206,191     $     1,145,881    $     1,088,587    $   1,034,158
V       $     1,485,000                 $     1,410,750    $     1,340,213     $     1,273,202    $     1,209,542    $   1,149,065
        ----------------------------------------------------------------------------------------------------------------------------
</TABLE>



<TABLE>
<CAPTION>

<S>      <C>                <C>                <C>               <C>                <C>
Severity     50-54               55-59              60-64             65-69              70 - 79
- ---------------------------------------------------------------------------------------------------
I        $        90,967    $        86,419    $       82,098     $      73,888     $       36,944
II       $       473,032    $       449,381    $      426,912     $     384,221     $      192,111
III      $       691,354    $       656,786    $      623,947     $     561,552     $      280,776
IV       $       982,450    $       933,327    $      886,661     $     797,995     $      398,998
V        $     1,091,612    $     1,037,031    $      985,180     $     886,662     $      443,331
        -------------------------------------------------------------------------------------------
</TABLE>






MATRIX A-2*                                    AGE AT DIAGNOSIS/EVENT

<TABLE>
<CAPTION>
<S>       <C>                          <C>                <C>                 <C>                <C>                <C>
Severity      LESS THAN OR EQUAL TO 24         25-29              30-34             35-39              40-44              45-49
- ---------------------------------------------------------------------------------------------------------------------------------
I        $         1,250                $         1,187   $        1,128      $         1,072    $        1,018     $         967
II       $         6,500                $         6,175   $        5,866      $         5,573    $        5,294     $       5,030
III      $         9,500                $         9,025   $        8,574      $         8,145    $        7,738     $       7,351
IV       $        13,500                $        12,825   $       12,184      $        11,575    $       10,996     $      10,446
V        $        15,000                $        14,250   $       13,537      $        12,861    $       12,218     $      11,607
        -------------------------------------------------------------------------------------------------------------------------
</TABLE>


<TABLE>
<CAPTION>
<S>     <C>                <C>                <C>               <C>                <C>
Severity      50-54               55-59              60-64             65-69              70 - 79
- --------------------------------------------------------------------------------------------------
I       $          919     $           873    $          829    $          739     $          500
II      $        4,778     $         4,539    $        4,312    $        3,842     $        1,921
III     $        6,983     $         6,634    $        6,302    $        5,616     $        2,808
IV      $        9,924     $         9,428    $        8,956    $        7,980     $        3,990
V       $       11,026     $        10,475    $        9,951    $        8,867     $        4,433
        ------------------------------------------------------------------------------------------
</TABLE>





MATRIX B-1*                                AGE AT DIAGNOSIS/EVENT

<TABLE>
<CAPTION>
<S>      <C>                            <C>                <C>                 <C>                <C>                <C>
Severity     LESS THAN OR EQUAL TO 24           25-29              30-34             35-39              40-44              45-49
- ------------------------------------------------------------------------------------------------------------------------------------
I        $        24,750                $        23,513    $        22,337     $        21,221    $        20,159    $       19,152
II       $       128,700                $       122,265    $       116,152     $       110,344    $       104,827    $       99,586
III      $       188,100                $       178,695    $       169,760     $       161,272    $       153,208    $      145,548
IV       $       267,300                $       253,935    $       241,238     $       229,176    $       217,717    $      206,831
V        $       297,000                $       282,150    $       268,043     $       254,641    $       241,908    $      229,813
        ----------------------------------------------------------------------------------------------------------------------------
</TABLE>


<TABLE>
<CAPTION>
<S>        <C>                <C>                <C>               <C>                <C>
Severity         50-54               55-59              60-64             65-69              70 - 79
- -----------------------------------------------------------------------------------------------------
I          $        18,194    $        17,284    $        16,420   $       14,778     $        7,389
II         $        94,606    $        89,876    $        85,383   $       76,844     $       38,422
III        $       138,270    $       131,357    $       124,790   $      112,310     $       56,155
IV         $       196,489    $       186,665    $       177,332   $      159,599     $       79,800
V          $       218,322    $       207,406    $       197,036   $      177,332     $       88,666
        ---------------------------------------------------------------------------------------------
</TABLE>



MATRIX B-2*                                        AGE AT DIAGNOSIS/EVENT

<TABLE>
<CAPTION>
<S>      <C>                               <C>                <C>                 <C>                <C>                <C>
Severity     LESS THAN OR EQUAL TO 24           25-29              30-34             35-39              40-44              45-49
- ----------------------------------------------------------------------------------------------------------------------------------
I        $           500                $           500    $           500     $           500    $           500    $         500
II       $         1,300                $         1,235    $         1,173     $         1,115    $         1,059    $       1,006
III      $         1,900                $         1,805    $         1,715     $         1,629    $         1,548    $       1,470
IV       $         2,700                $         2,565    $         2,437     $         2,315    $         2,199    $       2,089
V        $         3,000                $         2,850    $         2,707     $         2,572    $         2,444    $       2,321
        --------------------------------------------------------------------------------------------------------------------------
</TABLE>


<TABLE>
<CAPTION>
<S>        <C>                <C>                <C>               <C>                <C>
Severity         50-54               55-59              60-64             65-69              70 - 79
- -----------------------------------------------------------------------------------------------------
I          $           500    $           500    $           500   $          500     $          500
II         $           956    $           908    $           862   $          768     $          500
III        $         1,397    $         1,327    $         1,260   $        1,123     $          562
IV         $         1,985    $         1,885    $         1,791   $        1,596     $          798
V          $         2,205    $         2,095    $         1,990   $        1,773     $          886
        ---------------------------------------------------------------------------------------------
</TABLE>












*        Matrix payments will be increased 2% per year compounded annually
         beginning one year after the Final Judicial Approval Date.

A-1 TO MOU                                     PAGE 1 OF 1

<PAGE>








         A-2. CRITERIA FOR THE APPLICATION OF THE MATRICES

The following criteria will be applied to assign Settlement Class Members to the
matrices set forth in Section A-1 of this Exhibit:

(1)      Matrix A-1:

         Diet Drug Recipients who ingested Pondimin and/or Redux for more than
         60 days, who were diagnosed by a qualified physician as FDA Positive by
         an echocardiogram performed after the commencement of Diet Drug use and
         by the end of the Screening Program, whose conditions are eligible for
         matrix payments and who do not have any condition or circumstance which
         makes Matrix B-1 applicable, together with their associated
         Representative Claimants, provided that such persons have registered or
         have been deemed to have registered for settlement benefits by Date 2.

         The amounts specified in Matrix A-1 set forth the maximum aggregate
         amount to which the Diet Drug Recipient or his or her Representative
         Claimants are collectively entitled. Where there is more than one
         Representative Claimant associated with any particular Diet Drug
         Recipient eligible for such matrix benefits, the Trustees and/or Claims
         Administrator shall allocate this amount among all of the
         Representative Claimants.

(2)      Matrix A-2:

         Derivative Claimants of Diet Drug Recipients who are eligible for
         Matrix A-1 payments, to the extent that applicable state law recognizes
         that they have a claim for loss of consortium, services or support.

         A Derivative Claimant entitled to Matrix A-2 payments will be paid at
         the same Matrix Level as the Diet Drug Recipient whose ingestion of
         Pondimin and/or Redux forms the basis of the claim for loss of
         consortium, services or support under applicable state law.

         The amounts specified on Matrix A-2 are the maximum aggregate amounts
         payable to all Derivative Claimants. Therefore, where there is more
         than one Derivative Claimant, the amount of the Matrix A-2 payments to
         which the Derivative Claimants are entitled shall be apportioned by the
         Trustees and/or Claims Administrator among all Derivative Claimants who
         are entitled to such payment.

(3)      Matrix B-1:

         Diet Drug Recipients eligible for matrix payments to whom one or more
         of the following conditions apply, or their Representative Claimants:





A-2 TO MOU                                        PAGE 1 OF 4

<PAGE>



         (a)                        For claims as to the mitral valve, Diet Drug
                                    Recipients who were diagnosed by a qualified
                                    physician as having Mild Mitral
                                    Regurgitation by an echocardiogram performed
                                    after the commencement of Diet Drug use and
                                    by the end of the Screening Period
                                    (regardless of the duration of ingestion of
                                    Pondimin and/or Redux) and their associated
                                    Representative Claimants, provided that such
                                    persons have registered or have been deemed
                                    to have registered for settlement benefits
                                    by Date 2.

         (b)                        Diet Drug Recipients who ingested Pondimin
                                    and/or Redux for 60 days or less, who were
                                    diagnosed by a qualified physician as FDA
                                    Positive by an echocardiogram performed
                                    after the commencement of Diet Drug use and
                                    by the end of the Screening Period and their
                                    associated Representative Claimants,
                                    provided that such persons have registered
                                    or have been deemed to have registered for
                                    settlement benefits by Date 2.

         (c)                        Diet Drug Recipients who ingested Pondimin
                                    and/or Redux for more than 60 days, who were
                                    diagnosed by a qualified physician as FDA
                                    Positive by an echocardiogram performed
                                    after the commencement of Diet Drug use and
                                    by the end of the Screening Period and their
                                    associated Representative Claimants,
                                    provided that such persons have registered
                                    or have been deemed to have registered for
                                    settlement benefits by Date 2.

                  With respect to an aortic valve claim:

                           (i)      The following congenital aortic valve
                                    abnormalities: unicuspid, bicuspid or
                                    quadricuspid valves, ventricular septal
                                    defect associated with aortic regurgitation;

                           (ii)     Aortic dissection involving the aortic root
                                    and/or aortic valve;

                           (iii)    Aortic sclerosis in people who are GREATER
                                    THAN 60 years
                                    old as of the time they are
                                    first diagnosed as FDA Positive;

                           (iv)     Aortic root dilatation GREATER THAN 5.0 cm;

                           (v)      Aortic stenosis with an aortic valve area
                                    LESS THAN 1.0 square centimeter by the
                                    Continuity Equation.



A-2 TO MOU                                        PAGE 2 OF 4

<PAGE>



                  With respect to a mitral valve claim:

                           (vi)     The following congenital mitral valve
                                    abnormalities: parachute valve, cleft of the
                                    mitral valve associated with atrial septal
                                    defect;

                           (vii)    Mitral valve prolapse as determined by
                                    echocardiogram;

                           (viii)   Chordae tendinae rupture or papillary muscle
                                    rupture; or acute myocardial infarction
                                    associated with acute mitral regurgitation;

                           (ix)     Mitral annular calcification;

                           (x)      M-Mode and 2-D echo evidence of rheumatic
                                    mitral valves (doming of the anterior
                                    leaflet and/or anterior motion of the
                                    posterior leaflet and/or commissural
                                    fusion).

                  With respect to claims for the aortic and/or mitral valve(s):

                           (xi)     Heart valve surgery prior to Pondimin and/or
                                    Redux use on the valve that is the basis of
                                    claim;

                           (xii)    Bacterial endocarditis prior to Pondimin and
                                    /or Redux use;

                           (xiii)   FDA Positive regurgitation (confirmed by
                                    echocardiogram) prior to Pondimin and/or
                                    Redux use for the valve that is the basis of
                                    claim;

                           (xiv)    Systemic Lupus Erythematosus or Rheumatoid
                                    Arthritis;

                           (xv)     Carcinoid tumor of a type associated with
                                    aortic and/or mitral valve lesions;

                           (xvi)    History of daily use of methysergide or
                                    ergotamines for a continuous period of
                                    longer than 120 days.

         The amounts specified in Matrix B-1 set forth the maximum aggregate
         amount to which the Diet Drug Recipient or his or her Representative
         Claimants are collectively entitled. Where there is more than one
         Representative Claimant associated with any particular Diet Drug
         Recipient eligible for such matrix benefits, the Trustees and/or Claims
         Administrator shall allocate this amount among all of the
         Representative Claimants.



A-2 TO MOU                                        PAGE 3 OF 4

<PAGE>



(4)      Matrix B-2:

         Derivative Claimants of Diet Drug Recipients who are eligible for
         Matrix B-1 payments, to the extent that applicable state law recognizes
         that these Derivative Claimants have a claim for loss of consortium,
         services or support.

         A Derivative Claimant entitled to Matrix B-2 payments will be paid at
         the same Matrix Level as the Diet Drug Recipients whose ingestion of
         Pondimin and/or Redux forms the basis of the claim for loss of
         consortium, services or support under applicable state law.

         The amounts specified on Matrix B-2 are the maximum aggregate amounts
         payable to all Derivative Claimants. Therefore, where there is more
         than one Derivative Claimant, the amount of the Matrix B-2 payments to
         which Derivative Claimants are entitled shall be apportioned by the
         Trustees and/or Claims Administrator among all Derivative Claimants who
         are entitled to such payment.

A-2 TO MOU                                        PAGE 4 OF 4


<PAGE>


                  A-3. MATRIX LEVELS OF VALVULAR HEART DISEASE


The following provisions define the levels of valvular heart disease occurring
after Pondimin and/or Redux use on the payment matrices set forth in Section A-1
of this Exhibit:

1.       MATRIX LEVEL I is severe left sided valvular heart disease without
         complicating factors, and is defined as one of the following:

         a.       Severe aortic regurgitation (AR) GREATER THAN 50% jet
                  height/left ventricular outflow tract height (JH/LVOTH)1
                  and/or severe mitral regurgitation (MR) GREATER THAN 40%
                  regurgitant jet area/left atrial area (RJA/LAA) (1, 2) and
                  no complicating factors as defined below;

         b.       FDA Positive valvular regurgitation(3) with bacterial
                  endocarditis contracted post- Pondimin and/or Redux use.

2.       MATRIX LEVEL II is left sided valvular heart disease with complicating
         factors, and is defined as:

         a.       Moderate AR (25% - 49% JH/LVOTH)(1) or Severe AR (GREATER THAN
                  50% JH/LVOTH)1 with one or more of the following:

                  i.       Pulmonary hypertension secondary to severe aortic
                           regurgitation with a peak systolic pulmonary artery
                           pressure GREATER THAN 40 mm Hg measured by cardiac
                           catheterization or with a peak systolic pulmonary
                           artery pressure GREATER THAN 45 mm Hg(4) measured by
                           Doppler echocardiography utilizing standard
                           procedures(5,6) assuming a right atrial pressure of
                           10 mm Hg;

                  ii.      Abnormal left ventricular end-systolic dimension
                           GREATER THAN 50 mm(7) by M-mode or 2-D
                           echocardiography or abnormal left ventricular
                           end-diastolic dimension GREATER THAN 70 mm(7) as
                           measured by M-mode or 2-D echocardiography;

                  iii.     Ejection fraction of LESS THAN 50%7; and/or

         b.       Moderate MR (20% - 40% RJA/LAA)(1) or Severe MR (GREATER THAN
                  40% RJA/LAA)(1) with one or more of the following:

                  i.       Pulmonary hypertension secondary to valvular heart
                           disease with peak systolic pulmonary artery pressure
                           GREATER THAN 40 mmHg measured by cardiac
                           catheterization or with a peak systolic pulmonary
                           artery pressure GREATER THAN 45 mm Hg(4) measured by
                           Doppler echocardiography utilizing the procedures
                           described in section 2.a.i;


A-3 TO MOU                                        PAGE 1 OF 6

<PAGE>



                  ii.      Abnormal left atrial supero-inferior systolic
                           dimension GREATER THAN 5.3 cm(8) (apical four chamber
                           view) or abnormal left atrial antero-posterior
                           systolic dimension GREATER THAN 4.0 cm (parasternal
                           long axis view) measured by 2-D directed M-mode or
                           2-D echocardiography with normal sinus rhythm using
                           sites of measurement recommended by the American
                           Society of Echocardiography(9);

                  iii.     Abnormal left ventricular end-systolic dimension
                           GREATER THAN 45 mm(10) by M-mode or 2-D
                           echocardiogram;

                  iv.      Ejection fraction of LESS THAN OR EQUAL TO 60%(10);

                  v.       Arrhythmias, defined as chronic atrial
                           fibrillation/flutter that cannot be converted to
                           normal sinus rhythm, or atrial fibrillation/flutter
                           requiring ongoing medical therapy, either of which
                           are associated with left atrial enlargement; as
                           defined in section 2.b.ii.

3.       MATRIX LEVEL III is left sided valvular heart disease requiring surgery
         or conditions of equal severity, and is defined as:

         a.       Surgery to repair or replace the aortic and/or mitral valve(s)
                  following the use of Redux and/or Pondimin; or

         b.       Severe regurgitation and the presence of ACC/AHA Class I
                  indications for surgery to repair or replace the aortic(7)
                  and/or mitral(10) valve(s) and a statement from the attending
                  Board Certified Cardiothoracic surgeon or Board Certified
                  Cardiologist supported by medical records regarding the
                  recommendations made to the patient concerning valvular
                  surgery, with the reason why the surgery is not being
                  performed; or

         c.       Qualification for payment at Matrix Level I(b) or II and, in
                  addition, a stroke due to bacterial endocarditis contracted
                  after use of Pondimin and/or Redux or as a consequence of
                  chronic atrial fibrillation with left atrial enlargement as
                  defined in section 2.b.ii which results in a permanent
                  condition which meets the criteria of AHA Stroke Outcome
                  Classification11 Functional Level II, determined six months
                  after the event.

4.       MATRIX LEVEL IV is defined as follows:

         a.       Qualification for payment at Matrix Level I(b), II or III and,
                  in addition, a stroke due to bacterial endocarditis contracted
                  after use of Pondimin and/or Redux or as a consequence of
                  chronic atrial fibrillation with left atrial enlargement as
                  defined
A-3 TO MOU                                        PAGE 2 OF 6

<PAGE>


                  in section 2.b.ii which results in a permanent condition which
                  meets the criteria of AHA Stroke Outcome Classification(11)
                  Functional Level III, determined six months after the event;
                  or

         b. The individual has the following:

                  i.       Qualification for payment at Matrix Level III; and

                  ii.      New York Heart Association Functional Class I or
                           Class II symptoms as documented by the attending
                           Board Certified Cardiothoracic surgeon or Board
                           Certified Cardiologist; and

                  iii.     Valvular repair and replacement surgery or
                           ineligibility for surgery due to medical reasons as
                           documented by the attending Board Certified
                           Cardiothoracic surgeon or Board Certified
                           Cardiologist; and

                  iv.      Significant damage to the heart muscle, defined as:
                           (a) a left ventricular ejection fraction LESS THAN
                           30% with aortic regurgitation or a left ventricular
                           ejection fraction LESS THAN 35% with mitral
                           regurgitation in patients who have not had surgery
                           and meet the criteria of section 3.b or (b) a left
                           ventricular ejection fraction LESS THAN 40% six
                           months after valvular repair or replacement surgery
                           in patients who have had such surgery; or

         c.       The individual has had valvular repair or replacement surgery
                  and has one or more of the following complications which occur
                  either during surgery, within 30 days after surgery, or during
                  the same hospital stay as the surgery:

                  i.       Renal failure, defined as chronic, severe renal
                           failure requiring regular hemodialysis or Continuous
                           Abdominal Peritoneal Dialysis (CAPD) for greater than
                           six months following aortic and/or mitral valve
                           replacement surgery;

                  ii.      Peripheral embolus following surgery resulting in
                           severe permanent impairment to the kidneys, abdominal
                           organs, or extremities;

                  iii.     Stroke which produces a permanent condition which
                           meets the criteria of the AHA Stroke Outcome
                           Classification(11) Functional Levels II or III
                           determined six months after the event;

                  iv.      Quadriplegia or paraplegia resulting from cervical
                           spine injury during valvular heart surgery; or



A-3 TO MOU                                        PAGE 3 OF 6

<PAGE>



         d.       The individual has had valvular repair or replacement surgery
                  and suffers from post operative endocarditis, mediastinitis or
                  sternal osteomyelitis, either of which requires reopening the
                  median sternotomy for treatment, or a post-operative serious
                  infection defined as HIV or Hepatitis C within six months of
                  surgery as a result of blood transfusion associated with the
                  heart valve surgery.

5.       MATRIX LEVEL V is defined as:

         a.       Endocardial fibrosis (A) diagnosed by (1) endomyocardial
                  biopsy that demonstrates fibrosis and cardiac catheterization
                  that demonstrates restrictive cardiomyopathy or (2) autopsy
                  that demonstrates endocardial fibrosis and (B) other causes
                  including dilated cardiomyopathy, myocardial infarction,
                  amyloid, Loeffler's endocarditis, endomyocardial fibrosis as
                  defined in Braunwald (involving one or both ventricles,
                  located in the inflow tracts of the ventricles, commonly
                  involving the cordae tendinea, with partial obliteration of
                  either ventricle commonly present)(12), focal fibrosis
                  secondary to valvular regurgitation, e.g., "jet lesions",
                  focal fibrosis secondary to catheter instrumentation, and
                  hypertrophic cardiomyopathy with septal fibrosis have been
                  excluded; or

         b.       Left sided valvular heart disease with severe complications,
                  defined as Matrix Levels I(b), III or IV above with one or
                  more of the following:

                  i.       A severe stroke following aortic and/or mitral valve
                           surgery, due to bacterial endocarditis contracted
                           after use of Pondimin and/or Redux or as a
                           consequence of chronic atrial fibrillation with left
                           atrial enlargement as defined in section 2.b.ii and
                           the severe stroke has resulted in a permanent
                           condition which meets the criteria of AHA Stroke
                           Outcome Classification(13) Functional Levels IV or V,
                           determined six months after the event;

                  ii. The individual has the following:

                           (a)      Qualification for payment at Matrix Levels
                                    III or IV; and

                           (b)      New York Heart Association Functional Class
                                    III or Class IV symptoms as documented by
                                    the attending Board Certified Cardiothoracic
                                    surgeon or Board Certified Cardiologist; and

                           (c)      Valvular repair or replacement surgery or
                                    ineligibility for surgery due to medical
                                    reasons as documented by the attending Board
                                    Certified Cardiothoracic surgeon or Board
                                    Certified Cardiologist; and



A-3 TO MOU                                        PAGE 4 OF 6

<PAGE>


A-3 TO MOU                                        PAGE 5 OF 6

<PAGE>

                           (d)      Significant damage to the heart muscle,
                                    defined as: (i) a left ventricular ejection
                                    fraction LESS THAN 30% with aortic
                                    regurgitation or a left ventricular ejection
                                    fraction LESS THAN 35% with mitral
                                    regurgitation, in patients who have not had
                                    surgery and meet the criteria of section 3.b
                                    or (ii) a left ventricular ejection fraction
                                    LESS THAN 40% six months after valvular
                                    repair or replacement surgery in patients
                                    who have had such surgery; or

                  iii.     Heart transplant;

                  iv.      Irreversible pulmonary hypertension (PH) secondary to
                           valvular heart disease defined as peak-systolic
                           pulmonary artery pressure >50 mm Hg(4) (by cardiac
                           catheterization) following repair or replacement
                           surgery of the aortic and/or mitral valve(s);

                  v.       Persistent non-cognitive state(13) caused by a
                           complication of valvular heart disease (e.g., cardiac
                           arrest) or valvular repair/replacement surgery
                           supported by a statement from the attending Board
                           Certified Cardiothoracic surgeon or Board Certified
                           Cardiologist, supported by medical records; or

         c.       Death resulting from a condition caused by valvular heart
                  disease or valvular repair/replacement surgery which occurred
                  post-Pondimin and/or Redux use supported by a statement from
                  the attending Board Certified Cardiothoracic surgeon or Board
                  Certified Cardiologist, supported by medical records; or

         d.       The individual otherwise qualifies for payment at Matrix Level
                  II, III, or IV and suffers from ventricular fibrillation or
                  sustained ventricular tachycardia which results in hemodynamic
                  compromise.


A-3 TO MOU                                        PAGE 6 OF 6

<PAGE>


REFERENCES

1.       Singh JP, ET AL., Prevalence and Clinical Determinants of Mitral,
         Tricuspid and Aortic Regurgitation (The Framingham Heart Study),
         AMERICAN J CARDIOLOGY; 83:897-902 (1999).

2.       Helmcke, F., Nanda, N. C., Hsiung, M. C., Soto, B., Adey, C. K., Goyal,
         R. G., Gatewood, R.P., Jr., "Color Doppler Assessment of Mitral
         Regurgitation with Orthogonal Planes," CIRCULATION, 75(1):175-183
         (1987).

3.       Centers for Disease Control and Prevention. Cardiac Valvulopathy
         Associated with Exposure to Fenfluramine or Dexfenfluramine: US
         Department of Health and Human Services Interim Public Health
         Recommendations, November, 1997. MMWR MORB MORTAL WKLY REP.
         46:1061-1066 (1997).

4.       Braunwald, E., HEART DISEASE. A TEXTBOOK OF CARDIOVASCULAR MEDICINE,
         Philadelphia, W.B. Saunders Co., pp. 796-98 (1997).

5.       Feigenbaum, J. ECHOCARDIOGRAPHY, Baltimore, Williams&Wikins, pp. 201-02
         (5th ed. 1994).

6.       Chan, K-L., ET AL., Comparison of Three Doppler Ultrasound Methods in
         the Prediction of Pulmonary Artery Disease, J. AM. COLL. CARDIOL.,
         9:549-554 (1987).

7.       Bonow RO, Carabello B, de Leon Jr A, Edmunds Jr LH, Fedderly BJ, Freed
         MD, ET AL., Guidelines for the Management of Patients With Valvular
         Heart Disease: A Report of the American College of Cardiology/American
         Heart Association Task Force on Practice Guidelines (Committee on
         Management of Patients With Valvular Heart Disease), J AM COLL.
         CARDIOL., 32:1510-14 (1998).

8.       Weyman, A. E. PRINCIPLES AND PRACTICE OF ECHOCARDIOGRAPHY,
         Philadelphia, Lea & Febiger. pp. 1290-1292 (1994).

9.       Henry, W.L. ET. AL., Report of the American Society of Echocardiography
         Committee on Nomenclature and Standards in Two-dimensional
         Echocardiography, CIRCULATION, 62:212-21 (1980).

10.      Bonow RO, Carabello B, de Leon Jr A, Edmunds Jr LH, Fedderly BJ, Freed
         MD, ET AL. Guidelines for the Management of Patients With Valvular
         Heart Disease: A Report of the American College of Cardiology/American
         Heart Association Task Force on Practice Guidelines (Committee on
         Management of Patients With Valvular Heart Disease). J AM COLL.
         CARDIOL., 32:1533-35 (1998).

11.      The American Heart Association Stroke Outcome Classification approved
         by the American Heart Association Science Advisory and Coordinating
         Committee, p. 1275 (Dec. 1997).

12.      Braunwald, E. HEART DISEASE. A TEXTBOOK OF CARDIOVASCULAR MEDICINE,
         Philadelphia, W. B. Saunders Co., pp. 1433-34 (1997).

13.      Adelman, G., ENCYCLOPEDIA OF NEUROSCIENCE, Birkhauser; Boston, MA, p.
         268 (1987).

A-3 TO MOU                                        PAGE 7 OF 6


<PAGE>

                                     CREDITS


<TABLE>
<CAPTION>
                                       INDIVIDUALS WHO OPT-OUT                       INDIVIDUALS WHO OPT-OUT WITH AN
                                    WITH A MATRIX-LEVEL CONDITION                     FDA POSITIVE, BUT NOT MATRIX-
                                       AT THE TIME OF OPT-OUT                               LEVEL, CONDITION

OPT-OUTS                  JUDGMENTS*               PRE-JUDGMENT             JUDGMENTS*               PRE-JUDGMENT
                                                   SETTLEMENTS                                       SETTLEMENTS

<S>                       <C>                      <C>                      <C>                      <C>
INITIAL                   Full credit**            Full credit**            No credit                No credit

INTERMEDIATE              N/A                      N/A                      Partial credit           Opportunity to
                                                                            subject to an            seek court
                                                                            aggregate cap***         approval of
                                                                                                     partial credit
                                                                                                     subject to an
                                                                                                     aggregate cap***
BACK-END                  Full credit**            Full credit**            N/A                      N/A
</TABLE>

*        Includes post-judgment settlements

**       "Full credit" is defined as a credit in the amount of the lesser of (i)
         the amount of payment to the individual (by judgment or settlement) or
         (ii) the matrix payment for which an individual would qualify (as
         determined by age and level of severity either at the time of opt-out
         or at the time of payment of judgment or settlement, whichever is
         higher) less Class Counsel fees (up to 9% of that amount).

***      The cap on intermediate opt-out, non-matrix-level credits is $300
         million, but the amount of that cap shall accrete at an annual rate of
         6%, compounded annually, commencing on the Final Judicial Approval
         Date. In the event of a judgment or settlement after judgment, such
         intermediate opt-out credits shall be an amount which is the lesser of
         (i) the amount of payment to the individual or (ii) the amount of the
         matrix payment for a person at Level III payment and at the age of the
         individual at the time of payment, less Class Counsel fees (up to 9% of
         such amounts). In the case of prejudgment settlements with individuals
         who have exercised the intermediate opt-out where the Court has
         approved credit for the settlement, such credit shall be an amount
         which is the lesser of (i) the amount of the payment to the individual
         or (ii) 75% of the amount of the matrix payment for a person at Level
         III and at the age of the individual at the time of payment, less Class
         Counsel fees (up to 9% of such amounts).

EXHIBIT "B" TO MOU                                PAGE 1 OF 1

<PAGE>






<PAGE>

                          DEFINITION OF SETTLED CLAIMS

         "Settled Claims" shall be defined for purposes of the MOU and the
Settlement Agreement as:

         Any and all claims, including assigned claims, whether known or
unknown, asserted or unasserted, regardless of the legal theory, existing now or
arising in the future by any or all members of the Settlement Class against AHP
and/or any Released Parties arising out of or relating to the purchase, use,
manufacture, sale, dispensing, distribution, promotion, marketing, clinical
investigation, administration, regulatory approval, prescription, ingestion, and
labeling of Pondimin and/or Redux, alone or in combination with any other
substance, including, without limitation, any other drug, dietary supplement,
herb, or botanical. These "Settled Claims" include, without limitation and by
way of example, all claims for damages or remedies of whatever kind or
character, known or unknown, that are now recognized by law or that may be
created or recognized in the future by statute, regulation, judicial decision,
or in any other manner, for:

                  (1)      personal injury and/or bodily injury, damage, death,
                           fear of disease or injury, mental or physical pain or
                           suffering, emotional or mental harm, or loss of
                           enjoyment of life;

                  (2)      compensatory damages, punitive, exemplary, statutory
                           and other multiple damages or penalties of any kind;

                  (3)      loss of wages, income, earnings, and earning
                           capacity, medical expenses, doctor, hospital,
                           nursing, and drug bills;

                  (4)      loss of support, services, consortium, companionship,
                           society or affection, or damage to familial
                           relations, by spouses, parents, children, other
                           relatives or "significant others" of Settlement Class
                           Members;

                  (5)      consumer fraud, refunds, unfair business practices,
                           deceptive trade practices, Unfair and Deceptive Acts
                           and Practices ("UDAP"), and other similar claims
                           whether arising under statute, regulation, or
                           judicial decision;

                  (6)      wrongful death and survival actions;

                  (7)      medical screening and monitoring, injunctive and
                           declaratory relief;

                  (8)      economic or business losses or disgorgement of
                           profits arising out of personal injury; and

                  (9)      prejudgment or post-judgment interest.

EXHIBIT "C" TO MOU                                PAGE 1 OF 3

<PAGE>




Notwithstanding the foregoing, Settled Claims do not include claims based on
Primary Pulmonary Hypertension ("PPH"), including claims based on PPH for
compensatory, punitive, exemplary or multiple damages.

         For purposes of this MOU, the Settlement Agreement and this Exhibit
"C," PPH shall mean either or both of the following:

I.       For a diagnosis based on symptoms and findings prior to death:

         A.       (i)      Mean pulmonary artery pressure by cardiac
                           catheterization of GREATER THAN OR EQUAL TO 25 mm Hg
                           at rest or GREATER THAN OR EQUAL TO 30 mm Hg with
                           exercise with a normal pulmonary artery wedge
                           pressure LESS THAN OR EQUAL TO 15 mm Hg(1); or

                  (ii)     A peak systolic pulmonary artery pressure of GREATER
                           THAN OR EQUAL TO 60 mm Hg measured by Doppler
                           Echocardiography; or

                  (iii)    Administration of Flolan to the patient based on a
                           diagnosis of PPH with cardiac catheterization not
                           done due to increased risk in the face of severe
                           right heart dysfunction; and

         B.       Medical records which demonstrate that the following
                  conditions have been excluded by the following results(2):

                  (i)      Echocardiogram demonstrating no primary cardiac
                           disease including, but not limited to, shunts,
                           valvular disease (other than tricuspid or pulmonary
                           valvular insufficiency as a result of PPH or trivial,
                           clinically insignificant left-sided valvular
                           regurgitation), and congenital heart disease (other
                           than patent foramen ovale); and

                  (ii)     Left ventricular dysfunction defined as LVEF LESS
                           THAN 40% defined by MUGA, echocardiogram or cardiac
                           catheterization;

                  (iii)    Pulmonary function tests demonstrating the absence of
                           obstructive lung disease (FEV1/FVC GREATER THAN 50%
                           of predicted) and the absence of greater than mild
                           restrictive lung disease (total lung capacity GREATER
                           THAN 60% of predicted at rest); and

                  (iv)     Perfusion lung scan ruling out pulmonary embolism;
                           and

- --------

(1)      Rubin, L.J., S. Rich, PRIMARY PULMONARY HYPERTENSION, Marcel Dekker,
         Inc., New York (1997).

(2)      Braunwald, E., ESSENTIAL ATLAS OF HEART DISEASES, Current Medicine,
         Philadelphia, 1997, pg. 10-9.

EXHIBIT "C" TO MOU                                PAGE 2 OF 3

<PAGE>


                  (v)      If, but only if, the lung scan is indeterminate or
                           high probability, a pulmonary angiogram or a high
                           resolution angio computed tomography scan or
                           demonstrating absence of thromboembolic disease; and

         C.       Conditions known to cause pulmonary hypertension(1), (2), (3)
                  including connective tissue disease known to be causally
                  related to pulmonary hypertension, toxin induced lung disease
                  known to be causally related to pulmonary hypertension, portal
                  hypertension, significant obstructive sleep apnea,
                  interstitial fibrosis (such as silicosis, asbestosis, and
                  granulomatous disease) defined as greater than mild patchy
                  interstitial lung disease and familial causes have been ruled
                  out by a Board- Certified Cardiologist or Board-Certified
                  Pulmonologist as the cause of the person's pulmonary
                  hypertension.

                                                       -OR-

II. For a diagnosis made after the individual's death:

         A.       Autopsy demonstrating histopathologic changes in the lung
                  consistent with primary pulmonary hypertension and no evidence
                  of congenital heart disease (other than a patent foramen
                  ovale) with left-to-right shunt, such as ventricular septal
                  defect as documented by a Board-Certified Pathologist; and

         B.       Medical records which show no evidence of alternative causes
                  as described above for living persons.

         The foregoing definition of PPH ("the PPH Definition") is intended
solely for the purpose of describing claims excluded from the definition of
Settled Claims. The Parties agree that the PPH Definition includes but is
broader than the rare and serious medical condition suffered by the individuals
described in the IPPHS study.(4) The subjects in that study exhibited
significantly elevated pulmonary artery pressures with an average systolic
pulmonary artery pressure of 88 mm Hg and average mean pulmonary artery pressure
of 57 mm Hg. Two-thirds of the IPPHS patients demonstrated NYHA Class III or IV
symptoms. While the IPPHS subjects would fall within the PPH Definition, the
definition also includes persons with a milder, less serious medical condition.
- --------

(3)      Rich, S., Editor, Executive Summary from the Symposium on Primary
         Pulmonary Hypertension, Evian, France, co-sponsored by the World Health
         Organization, http://www.who.int/ncd/cvd/pph-html. September 6-10,
         1998.

(4)      Abenhaim, L., ET AL., Appetite-Suppressant Drugs and the Risk of
         Primary Pulmonary Hypertension. International Primary Pulmonary
         Hypertension Study Group, NEW ENGLAND JOURNAL OF MEDICINE, 1996,
         335(9): 606-616.

EXHIBIT "C" TO MOU                                PAGE 3 OF 3

<PAGE>


                            LIST OF RELEASED PARTIES

         The Settlement Agreement will provide that the Released Parties shall
be deemed to include:

         (a)      American Home Products Corporation ("AHP") and each of its
                  subsidiaries, affiliates, and divisions, including, but not
                  limited to, Wyeth-Ayerst Laboratories Division, Wyeth-Ayerst
                  Laboratories Co., Wyeth-Ayerst Pharmaceuticals Inc., and
                  American Cyanamid Corporation, along with each of their
                  respective current and former officers, directors, employees,
                  attorneys, agents, and insurers.

         (b)      Any and all predecessors, successors, and/or shareholders of
                  AHP and each of its subsidiaries, affiliates, and divisions;
                  provided, however, that any such person or entity shall be
                  considered a Released Party only to the extent that such
                  person or entity is sued in its capacity as a predecessor,
                  successor, and/or shareholder of AHP or its subsidiaries,
                  affiliates, and divisions.

         (c)      Any and all suppliers of materials, components, and services
                  used in the manufacture of Redux and/or Pondimin, including
                  the labeling and packaging thereof, along with each such
                  person's or entity's predecessors, successors, parents,
                  subsidiaries, affiliates, and divisions, and each of their
                  respective current and former shareholders, officers,
                  directors, employees, attorneys, agents, and insurers;
                  provided, however, that no person or entity described in this
                  subsection shall be a Released Party with respect to any
                  claims based upon his, her or its own independent negligence
                  or culpable conduct.

         (d)      All distributors of Pondimin and/or Redux, including wholesale
                  distributors, private label distributors, retail distributors,
                  hospitals and clinics, and their respective predecessors,
                  successors, parents, subsidiaries, affiliates, and divisions,
                  and their respective current and former shareholders,
                  officers, directors, employees, attorneys, agents, and
                  insurers; provided that (1) such persons and entities
                  described in this section shall be a Released Party only as to
                  claims as to which such persons would have a statutory or
                  common-law right of indemnity against AHP and (2) no person or
                  entity described in this section shall be a Released Party to
                  the extent that any claim is based upon his, her or its own
                  independent negligence or culpable conduct, including, without
                  limitation, negligence or professional malpractice asserted
                  against hospitals, clinics, and diet centers.

         (e)      All physicians who prescribed, and all pharmacists and
                  pharmacies who dispensed, Pondimin and/or Redux to the extent
                  that liability against such physicians, pharmacists or
                  pharmacies is based on:

                  (i)      the prescription or dispensing of Pondimin and/or
                           Redux in a manner consistent with the product
                           labeling; and/or

EXHIBIT "D" TO MOU                                PAGE 1 OF 2

<PAGE>


                  (ii)     the prescription or dispensing of Pondimin for any
                           period longer than a "few weeks"; and/or

                  (iii)    the prescription or dispensing of Pondimin and/or
                           Redux for concomitant use with Phentermine
                           hydrochloride or Phentermine resin; and/or

                  (iv)     a claim that the physician's or pharmacist's
                           liability stems solely from having prescribed or
                           dispensed Pondimin and/or Redux; and/or

                  (v)      a claim that the physician's or pharmacist's
                           liability stems solely from the prescription or
                           dispensing of a defective or unreasonably dangerous
                           product.

                  Physicians, pharmacists and pharmacies are not Released
                  Parties with respect to any claims based on their independent
                  negligence or culpable conduct.

         Notwithstanding the foregoing, Les Laboratoires Servier S.A. and all of
its affiliates and subsidiaries, including, without limitation, Servier S.A.S.,
Oril, Orsem, Servier Amerique, Science Union et Cie, Institut de Recherches
Internationales Servier, Servier Research, Interneuron Pharmaceuticals, Inc.,
and any manufacturer, seller, wholesaler, or distributor of any Phentermine
hydrochloride or Phentermine resin pharmaceutical product are not Released
Parties.

EXHIBIT "D" TO MOU                                PAGE 2 OF 2

<PAGE>


                 JUDGMENT REDUCTION FOR CLAIMS BY THIRD PARTIES

         The Settlement Agreement will contain the following provisions:

         1.       It is the intent of this Settlement Agreement that no
                  Settlement Class Member shall recover, directly or indirectly,
                  any sums for Settled Claims from AHP or any Released Party
                  other than those received under the Settlement Agreement and
                  that AHP shall make no payments to any third party defined
                  herein as a Non-Settling Defendant for any amounts arising out
                  of a Settled Claim brought by a class member against such
                  Non-Settling Defendant, except to the extent that Class
                  Members timely and properly exercise an initial, intermediate,
                  or back-end opt-out right provided by the MOU. It is the
                  further intent of this Settlement Agreement that Settlement
                  Class Members agree to reduce any judgments against
                  Non-Settling Defendants to the extent necessary, under
                  applicable law, to relieve AHP and the Released Parties of
                  liability for contribution or non-contractual indemnity to any
                  Non-Settling Defendant. In particular:

                  (a)      Nothing in this Agreement is intended to adversely
                           affect any Non-Settling Defendant's right, if any, to
                           set-off or judgment reduction under any state
                           contribution among tortfeasors act or other
                           applicable law. Non-Settling Defendants will be
                           entitled, at a minimum, to whatever set-off or
                           judgment reduction is afforded them by operation of
                           applicable law. Settlement Class Members who do not
                           exercise initial, intermediate or back-end opt- out
                           rights agree that all defendants are joint
                           tortfeasors in cases in which Settlement Class
                           Members have joined Non-Settling Defendants, AHP,
                           and/or the Released Parties or in any other case in
                           which a Settled Claim is asserted.

                  (b)      The Parties recognize that, under the law of some
                           states, claims for contribution or non-contractual
                           indemnity against a settling defendant survive a
                           settlement unless the settlement provides set-off or
                           judgment reduction rights that go beyond those that
                           would otherwise exist by operation of applicable law.
                           In those cases, the Parties intend that Non- Settling
                           Defendants shall be entitled to the additional
                           set-off or judgment reduction necessary under
                           applicable law to extinguish Non-Settling Defendants'
                           claims, if any, for contribution or non-contractual
                           indemnity against AHP and the Released Parties
                           arising from Settled Claims only. Settlement Class
                           Members, however, reserve their right to contend
                           that, due to the nature of the theories of liability
                           alleged or presented against the Non-Settling
                           Defendants (I.E., conspiracy or concert of action),
                           Non- Settling Defendants have no right to
                           contribution or non-contractual indemnity from AHP or
                           the Released Parties as a matter of law even though
                           they are joint tortfeasors.


EXHIBIT "E" TO MOU                                PAGE 1 OF 5

<PAGE>



                  (c)      In the event that any claim that a Non-Settling
                           Defendant would have for contribution or
                           non-contractual indemnity against AHP or the Released
                           Parties in the absence of this Settlement Agreement
                           with respect to a Settled Claim would not be
                           extinguished under applicable law by the set- off or
                           judgment reduction to which the Non-Settling
                           Defendant would be entitled by operation of law, any
                           Settlement Class Member who recovers a judgment
                           against any Non-Settling Defendant with respect to a
                           Settled Claim for which AHP and/or any Released Party
                           would be liable by a claim for contribution or
                           non-contractual indemnity but for the provisions of
                           this Settlement Agreement, shall reduce his judgment
                           against the Non- Settling Defendant by the amount,
                           percentage, or share of such judgment necessary,
                           under applicable law, to relieve AHP and the Released
                           Parties of liability for contribution or
                           non-contractual indemnity. By way of example, under a
                           statute modeled on the 1939 version of the Uniform
                           Contribution Among Tortfeasors Act, Settlement Class
                           Members would reduce their judgments against
                           Non-Settling Defendants in the situation described in
                           this Section to the extent of the pro rata shares (as
                           determined under applicable law) of AHP and any
                           relevant Released Party. In the absence of a statute,
                           Settlement Class Members would reduce their judgments
                           against Non-Settling Defendants in the situation
                           described in this Section by the amount, percentage,
                           or share of such judgment that would lawfully be
                           attributable to AHP and/or the Released Party or
                           Parties but for the provisions of this Settlement
                           Agreement.

                  (d)      To avoid inconvenience and expense to AHP, the
                           Released Parties, and the Settlement Class Members,
                           and to eliminate the objection that certain states'
                           law requires that AHP and the Released Parties remain
                           as parties in a lawsuit to facilitate the
                           adjudication of Non-Settling Defendants' set-off or
                           judgment reduction rights with respect to a Settled
                           Claim, the releases provided under this Settlement
                           Agreement shall incorporate, to the extent required
                           by applicable law, what is known in Pennsylvania as a
                           "GRIFFIN release" and/or what is known in Wisconsin
                           and elsewhere as a "PIERRINGER release." By this
                           provision, Settlement Class Members agree that the
                           lack of a judicial determination that the settling
                           defendant is a joint tortfeasor does not preclude
                           Non-Settling Defendants from obtaining set-off or
                           judgment reduction rights they would otherwise have
                           under applicable law in the absence of this
                           Agreement. SEE GRIFFIN V. UNITED STATES, 500 F.2d
                           1059 (3d Cir. 1974); PIERRINGER V. HOGER, 124 N.W.2d
                           106 (Wis. 1963). By this provision, Settlement Class
                           Members further agree to waive any rights that they
                           might have against Non-Settling Defendants, the
                           assertion of which would, under applicable law, allow
                           Non-Settling Defendants to add or retain AHP and/or
                           the Released Parties as defendants in actions brought
                           by Settlement Class Members against Non-Settling
                           Defendants with respect to Settled Claims for the
                           purpose of adjudicating Non-Settling Defendants'

EXHIBIT "E" TO MOU                                PAGE 2 OF 5

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                           rights, if any, to set-off or judgment reduction.
                           This provision is intended to obviate the necessity
                           and expense of having AHP and the Released Parties
                           added or remain as parties on the record and obliged
                           to participate in a trial merely for the purpose of
                           determining if in fact they were tortfeasors so as to
                           entitle other tortfeasors to a reduction of any
                           verdict. This provision, however, in no way
                           constitutes an admission of liability by AHP and the
                           Released Parties or an admission by Settlement Class
                           Members that any Non-Settling Defendant is entitled
                           to contribution or non-contractual indemnity from AHP
                           or a Released Party.

                  (e)      The Parties intend that this Settlement Agreement
                           result in the termination or bar of all claims for
                           contribution and/or non-contractual indemnity against
                           AHP and the Released Parties with respect to Settled
                           Claims. To the extent that the Parties' intent is not
                           fully realized, and a Non-Settling Defendant obtains
                           a judgment for contribution or non-contractual
                           indemnity against AHP and/or a Released Party with
                           respect to Settled Claims, Settlement Class Members
                           agree to reduce their judgments against Non-Settling
                           Defendants by the amount, percentage, or share of
                           such judgment necessary to satisfy any such judgment
                           or non-contractual indemnity for the benefit of AHP
                           and/or the Released Party. If, despite the provisions
                           of this section, AHP or any Released Party incurs any
                           judgments due to a claim for contribution or
                           non-contractual indemnification arising out of a
                           claim brought by a Settlement Class Member against a
                           Non-Settling Defendant, such Settlement Class Member
                           shall indemnify AHP and the Released Parties for such
                           amount, provided that AHP and the Released Parties
                           shall have made all reasonable efforts to avoid
                           liability for contribution and/or non-contractual
                           indemnity to Non- Settling Defendants under the
                           Settlement Agreement.

                  (f)      If, despite the provisions of this section, AHP or
                           any Released Party makes a payment of any judgment
                           due to a claim for contribution and/or non-
                           contractual indemnity arising out of a Claim brought
                           by a Settlement Class Member against a Non-Settling
                           Defendant with respect to a Settled Claim, such
                           Settlement Class Member shall indemnify AHP and the
                           Released Parties for such amount, and AHP shall make
                           reasonable efforts to reduce such indemnity
                           obligations to judgment in the underlying litigation
                           involving the Non-Settling Defendant. To the extent
                           that, for any reason, a Settlement Class Member has
                           failed to satisfy an indemnity obligation arising
                           under this paragraph within 90 days after AHP makes
                           any such payment, AHP shall assign its indemnity
                           rights against the Class Member to the Trustees and
                           receive a credit against its Fund B obligations in
                           the amount of the unsatisfied portion of the
                           indemnity. The credit shall accrete with a 6% factor,
                           compounded annually, commencing in the year it is
                           generated. Accreted

EXHIBIT "E" TO MOU                                PAGE 3 OF 5

<PAGE>


                           credits shall accumulate and shall be applied in the
                           same manner as credits are applied pursuant to
                           Section III.1 of the MOU.

         2.       To further protect the Non-Settling Defendants' interests, the
                  Parties have agreed that the bar order shall incorporate the
                  following provisions:

                  (a)      If, despite the provisions of Section 1, (i)
                           applicable law precludes a Non- Settling Defendant
                           from obtaining a set-off or judgment reduction to
                           which a Non-Settling Defendant would otherwise be
                           entitled under applicable law in an individual case
                           brought by a Settlement Class Member with respect to
                           a Settled Claim without naming AHP or a Released
                           Party as a party in the lawsuit and (ii) the
                           Non-Settling Defendant and the Settlement Class
                           Member cannot reach agreement on this issue
                           sufficient to eliminate the Non-Settling Defendant's
                           alleged need to name AHP or a Released Party in the
                           lawsuit, the Non-Settling Defendant may apply to the
                           Court(s) for relief from the bar order.

                  (b)      The Non-Settling Defendant's application to the
                           Court(s) shall set forth with specificity (i) the
                           facts and law that would give rise to a claim for
                           contribution and/or non-contractual indemnity but for
                           the provisions of this Settlement Agreement; (ii) the
                           efforts that the Non-Settling Defendant has made to
                           reach an accommodation with the Settlement Class
                           Member with respect to the need to name AHP or a
                           Released Party as a defendant in the case; and (iii)
                           the factual and legal bases for the Non-Settling
                           Defendant's claim that, under the particular facts of
                           the case and the particular provisions of applicable
                           law, the Non-Settling Defendant must be permitted to
                           name AHP or a Released Party in the case despite the
                           bar order.

                  (c)      A copy of the Non-Settling Defendant's application(s)
                           to the Court(s) shall be served on the PMC and
                           counsel for AHP.

                  (d)      The Court(s) shall modify the bar order to permit a
                           Non-Settling Defendant to name AHP or a Released
                           Party in a particular case brought against a
                           Non-Settling Defendant by a Settlement Class Member
                           with respect to a Settled Claim, only where doing so
                           is essential to protect set-off or judgment reduction
                           rights to which the Non-Settling Defendant would be
                           entitled under applicable law but for the provisions
                           of this Settlement Agreement. Any order modifying the
                           bar order will contain provisions that protect the
                           interests of AHP and the Released Parties in finality
                           under this Settlement Agreement, including, among
                           other things, provisions affirming that the
                           Settlement Class Member has agreed (i) to forego any
                           direct or indirect recovery from AHP or the Released
                           Parties of sums over and above those received under
                           this Settlement Agreement and (ii) to give up any
                           portion of any judgment

EXHIBIT "E" TO MOU                                PAGE 4 OF 5

<PAGE>


                           obtained against a Non-Settling Defendant that is
                           attributed to AHP or any Released Party with respect
                           to a Settled Claim.

                  (e)      Applications made by Non-Settling Defendants for
                           modification of the bar order will be subject to the
                           provisions of Fed.R.Civ.P. 11 and/or the state law
                           equivalent.

         3.       "Non-Settling Defendant" shall mean any person or entity that
                  is not AHP or a Released Party as defined herein, against whom
                  or which any claim, suit, action or other proceeding has been
                  or is hereafter made, asserted or commenced alleging injury or
                  damage as a result of a Settled Claim. A physician or other
                  Released Party may be a Non-Settling Defendant as to any claim
                  with respect to which he, she, or it is not a Released Party.
                  The term Non-Settling Defendant is not limited to persons or
                  entities who are sued in an action in which AHP or another
                  Released Party is also a party.

         4.       "Non-Contractual Indemnity" or "Non-Contractual
                  Indemnification" means a right of indemnity based upon the
                  relationship between or conduct of the parties. These terms
                  include, and the protections provided AHP and the Released
                  Parties herein apply to, a contractual obligation of
                  indemnification voluntarily assumed by AHP to the extent AHP
                  would have been liable to such claimant for indemnity in the
                  absence of such contractual indemnification.

         5.       "Settlement Class Member" referred to in this Exhibit "E"
                  shall mean any member of the Settlement Class who has not
                  timely exercised an initial opt-out right, an intermediate
                  opt-out right, or a back end opt-out right pursuant to the
                  terms of the Settlement Agreement. Upon the exercise of any
                  such opt-out rights, the provisions of this Exhibit shall
                  become ineffective in connection with any action brought by
                  each class member who has exercised any right of opt-out.

         6.       A Settled Claim is defined as set forth in Exhibit "C" to the
                  MOU.

         7.       The Settlement Agreement shall contain other specific terms
                  and provisions to implement, with respect to specific third
                  parties, the Parties' intention that no Settlement Class
                  Member shall recover, directly or indirectly, any sums for
                  Settled Claims from AHP or any Released Party other than
                  amounts received under this Settlement Agreement, and that AHP
                  shall make no payments to such third parties for any amounts
                  arising out of a Settled Claim brought against such third
                  parties by any Class Member, except to the extent that a Class
                  Member timely and properly exercises an initial, intermediate
                  or back-end opt-out right provided by the MOU.

EXHIBIT "E" TO MOU                                PAGE 5 OF 5

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