OXIS INTERNATIONAL INC
8-K/A, 1998-03-12
PHARMACEUTICAL PREPARATIONS
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D.C.  20549



                                  FORM 8-K/A

                                CURRENT REPORT
                        PURSUANT TO SECTION 13 OR 15(D)
                    OF THE SECURITIES EXCHANGE ACT OF 1934



Date of report (date of earliest event reported)    December 31, 1997
                                                    ----------------------------



                           OXIS INTERNATIONAL, INC.
- -------------------------------------------------------------------------------
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
                                        



 Delaware                             0-8092                    94-1620407
- --------------------------------------------------------------------------------
(State or Other Jurisdiction  (Commission File Number)   (IRS Employer
 of Incorporation)                                        Identification Number)
                  


6040 N. Cutter Circle, Suite 317       Portland, OR               97217-3935
- --------------------------------------------------------------------------------
(Address of Principal Executive Offices)


Registrant's telephone number, including area code.    (503) 283-3911
                                                   -----------------------------



- ------------------------------------------------------------------------------- 
         (Former Name or Former Address, if Changed Since Last Report)



                                                    Total number of sequentially
                                                  numbered pages:             23
                                                                           -----

                                                   Exhibit Index at page:      4
                                                                           -----
<PAGE>
 
ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS
         ---------------------------------

(a) and (b) Financial Statements and Pro Forma Financial Information
            --------------------------------------------------------

     On January 15, 1998 the Company filed a Report on Form 8-K reporting the
acquisition of Innovative Medical Systems Corp. ("IMS").  The Report on Form 8-K
indicated that additional financial information would be filed under cover of a
Form 8-K/A report.  The additional financial information is provided herewith,
as follows.


*  Financial statements of IMS as of, and for the years ended October 31, 1996
   and 1997.

*  Pro forma balance sheets for OXIS and IMS combined as of September 30, 1997.

*  Pro forma statements of operations for OXIS and IMS combined for the year
   ended December 31, 1996 and for the nine months ended September 30, 1997.


(c)  Exhibits
     --------

Exhibit 23(a)   Independent auditors consent.


Exhibit 99(a)   Audited financial statements of IMS as of, and for the two years
                ended October 31, 1997.


Exhibit 99(b)   Unaudited pro forma financial information including:

*  A pro forma balance sheet for the two companies combined as of September 30,
   1997.

*  A pro forma statement of operations for the two companies combined for the
   year ended December 31, 1996.

*  A pro forma statement of operations for the two companies combined for the
   nine months ended September 30, 1997.

                                       2
<PAGE>
 
                                   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.

March 12, 1998                          OXIS International, Inc.


                                            s/  Ray R. Rogers
                                         ----------------------
                                            Ray R. Rogers
                                            Chairman of the Board

                                       3
<PAGE>
 
                                 EXHIBIT INDEX


                                                   
                                                                  Page     
Exhibit                                                          Number
- -------                                                          ------


23(a)          Independent auditors consent                         5


99(a)          Audited financial statements of IMS as of, 
               and for the two years ended October 31, 1997         6 
               
99(b)          Unaudited pro forma financial information 
               including:                                           17 
               *  A pro forma balance sheet for the two 
                  companies combined as of September 30, 1997.
               *  A pro forma statement of operations for the 
                  two companies combined for the year ended 
                  December 31, 1996.  
               *  A pro forma statement of operations for the 
                  two companies combined for the nine months 
                  ended September 30, 1997. 

                                       4

<PAGE>
 
                                 Exhibit 23(a)
                         Independent Auditors' Consent

                        Albertjohn DePalantino & Co.
                      350 South Main Street, Suite 117
                            Doylestown, PA 18901 

We consent to the incorporation by reference in Registration Statement No 33-
64451 on Form S-8 of OXIS International, Inc and Registration Statement Nos. 33-
61087, 333-5921 and 333-18041 on Form S-3 of OXIS International, Inc of our
report dated January 31, 1998, on the financial statements of Innovative Medical
Systems Corp appearing in the Form 8-K/A Current Report of OXIS International
Inc, dated March 12, 1998.



/s/ DePalantino & Company
- -------------------------
DePalantino & Company

March 12, 1998



                                       5

<PAGE>
 
                                 Exhibit 99(a)
         Innovative Medical Systems Corp. Audited Financial Statements

                        Albertjohn DePalantino & Co.
                      350 South Main Street, Suite 117
                            Doylestown, PA 18901 


January 31, 1998


Board of Directors and Stockholders
INNOVATIVE MEDICAL SYSTEMS CORP
55 Steam Whistle Drive
Ivyland, PA  18974


We have audited the accompanying balance sheets of INNOVATIVE MEDICAL SYSTEMS
CORP as of October 31, 1997 and 1996, and the related statements of income,
changes in stockholders equity, and cash flows for the years then ended.  These
financial statements are the responsibility of the Company's management.  Our
responsibility is to express an opinion on these financial statements based on
our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of INNOVATIVE MEDICAL SYSTEMS CORP
as of October 31, 1997 and 1996, and the results of its operations and its cash
flows for the years then ended in conformity with generally accepted accounting
principles.


/s/ DePalantino & Company
- --------------------------
    DePalantino & Company

                                       6
<PAGE>
 

INNOVATIVE MEDICAL SYSTEMS CORP

Balance Sheet
October 31, 1997 and 1996

<TABLE>
<CAPTION>
ASSETS
                                                                   1997                       1996
                                                          ----------------------      ---------------------
<S>                                                       <C>                         <C>    
Current assets                                           
- --------------
Cash and cash equivalents                                    $           28,836         $              376
Accounts receivable, less allowance for doubtful         
  accounts of $13,891 and $14,477 respectively                          449,149                    709,379
Inventories                                                           1,022,660                    985,836
Prepaid expenses and other                                               21,804                     31,606
                                                               -----------------          -----------------
                                                                                           
  Total current assets                                                1,522,449                  1,727,197
                                                               -----------------          -----------------
                                                         
                                                         
Property, plant and equipment, at cost                   
- --------------------------------------
Land                                                                     77,648                     77,648
Building & improvements                                               1,780,213                  1,780,213
Machinery & equipment                                                 1,728,934                  1,746,667
                                                               -----------------          -----------------
                                                         
                                                                      3,586,795                  3,604,528
  Less: accumulated depreciation                                      1,784,736                  1,622,735
                                                               -----------------          -----------------
                                                         
                                                                      1,802,059                  1,981,793
                                                               -----------------          -----------------
                                                         
Other assets                                             
- ------------
Refinance cost, net of amortization of $4,677 and                        65,484                     70,161
     $0 respectively                                     
Covenant not-to-compete, net of amortization of                                            
    $225,000 and $175,000 respectively                                        0                     75,000
                                                               -----------------          -----------------
                                                         
  Total other assets                                                     65,484                    145,161
                                                               -----------------          -----------------
                                                         
                                                         
TOTAL ASSETS                                                 $        3,389,992         $        3,854,151
                                                               =================          =================
</TABLE>


See accompanying notes to financial statements.
 

                                       7
<PAGE>
 

INNOVATIVE MEDICAL SYSTEMS CORP

Balance Sheet
October 31, 1997 and 1996


LIABILITIES AND STOCKHOLDERS EQUITY
<TABLE>
<CAPTION> 
                                                              1997                       1996
                                                     ----------------------      ---------------------
<S>                                                  <C>                         <C>    
Current liabilities                                 
- -------------------
Revolving loan agreement                                $          389,345         $          535,138
Current portion of long-term debt                                  216,007                    123,129
Accounts payable                                                   375,198                    175,098
Payroll taxes due                                                    2,594                      1,758
Deferred income                                                    175,000                          0
Accrued expenses                                                   118,074                     50,270
                                                          -----------------          -----------------
                                                    
  Total current liabilities                                      1,276,218                    885,393
                                                          -----------------          -----------------
                                                    
Long-term liabilities                               
- ---------------------
Long-term debt, net of current portion                           1,486,204                  1,539,371
                                                          -----------------          -----------------
                                                    
  Total long-term liabilities                                    1,486,204                  1,539,371
                                                          -----------------          -----------------
                                                    
                                                    
TOTAL LIABILITIES                                                2,762,422                  2,424,764
                                                          -----------------          -----------------
                                                    
Stockholders' equity                                
- --------------------
Common stock, no par value, 1,000,000 shares        
  authorized; 627,600                                               21,087                     21,087
Additional paid-in capital                                         717,795                    717,795
Retained earnings                                                1,388,688                  2,190,505
  Less: treasury stock, 176,500 shares at cost                  (1,500,000)                (1,500,000)
                                                          -----------------          -----------------
                                                    
Total stockholders' equity                                         627,570                  1,429,387
                                                          -----------------          -----------------
                                                    
                                                    
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY              $        3,389,992         $        3,854,151
                                                          =================          =================
</TABLE>


See accompanying notes to financial statements.


                                       8
<PAGE>
 
<TABLE>
<CAPTION>

INNOVATIVE MEDICAL SYSTEMS CORP
Statement of retained earnings
October 31, 1997 and 1996


                                                  1997                       1996
                                         ----------------------      ---------------------
<S>                                         <C>                        <C>               
Balance - beginning                         $        2,190,505         $        2,393,333
                                        
Net loss for years ended                
     October 31, 1997 and 1996                        (801,817)                  (202,828)
                                              -----------------          -----------------
                                        
Balance - ending                            $        1,388,688         $        2,190,505
                                              =================          =================
                                                                                                         
</TABLE>

See accompanying notes to financial statements.


                                       9

<PAGE>
 
<TABLE>
<CAPTION>
INNOVATIVE MEDICAL SYSTEMS CORP
Statement of cash flows
Years ended October 31, 1997 and 1996

                                                         1997                       1996
                                                ----------------------          -----------------
                                                
                                                
<S>                                             <C>                           <C>
Net loss after tax                                 $         (801,817)        $         (202,828)
Depreciation and amortization                                 259,411                    291,210
Accounts receivable                                           260,230                    205,281
Inventory                                                     (36,824)                   263,158
Other current assets                                            9,802                     15,010
Accounts payable                                              200,100                    (12,036)
Accrued expenses                                               68,640                    (25,377)
Income tax payable and deferred income taxes                        0                   (215,321)
Deferred income                                               175,000                          0
                                                     -----------------          -----------------
   Operating cash flow                                        134,542                    319,097
                                                     -----------------          -----------------
                                                
Gross fixed assets                                                  0                    (33,418)
Intangible and other noncurrent assets                              0                    (70,161)
                                                     -----------------          -----------------
   Investing cash flow                                              0                   (103,579)
                                                     -----------------          -----------------
                                                
Cash flow before financing                                    134,542                    215,518
                                                     -----------------          -----------------
                                                
Short-term debt                                               (52,915)                  (237,954)
Long-term debt                                                (53,167)                    22,147
                                                     -----------------          -----------------
   Financing cash flow                             $         (106,082)        $         (215,807)
                                                     -----------------          -----------------
                                                
                                                
Comprehensive cash flow                         
- -----------------------                         
Beginning cash                                     $              376         $              665
Plus:  Operating Cash Flow                                    134,542                    319,097
          Investing cash flow                                       0                   (103,579)
          Financing cash flow                                (106,082)                  (215,807)
                                                     -----------------          -----------------
Ending cash                                        $           28,836         $              376
                                                     =================          =================


</TABLE>

See accompanying notes to financial statements.


                                      10
<PAGE>

<TABLE>
<CAPTION>
INNOVATIVE MEDICAL SYSTEMS CORP
Income statement
Years ended October  31, 1997 and 1996


                                                             1997                                 1996
                                                            AMOUNT                               AMOUNT
                                                  --------------------------            --------------------------
<S>                                               <C>                                   <C>
Net sales                                         $             2,212,723               $            3,445,631
                                                     ----------------------               ----------------------
Direct expenses                                  
- ---------------
Cost of goods sold                               
  Finished goods inventory, beginning                               65,728                              254,299
  Cost of goods manufactured                                     1,718,771                            2,048,841
                                                     ----------------------               ----------------------
  Cost of finished goods available                               1,784,499                            2,303,140
  Finished goods inventory, ending                                  16,625                               65,728
                                                     ----------------------               ----------------------
  Cost of goods sold                                             1,767,874                            2,237,412
Development costs                                                        0                              308,487
Engineering salaries                                               208,200                              358,489
                                                     ----------------------               ----------------------
  Total direct expenses                                          1,976,074                            2,904,388
                                                     ----------------------               ----------------------
Gross profit                                                       236,649                              541,243
                                                     ----------------------               ----------------------
Operating expenses
- ------------------
Selling                                                             51,462                              106,138
Office and administrative                                          793,082                              636,181
                                                     ----------------------               ----------------------
   Total operating expenses                                        844,544                              742,319
                                                     ----------------------               ----------------------
Income from operations before                    
   other income and expenses                                      (607,895)                            (201,076)

Other income and expense                         
- ------------------------
   Interest expense                                               (224,550)                            (231,700)
   Finance charge income                                                 0                               73,664
   Loss on sale of fixed assets                                          0                               (5,182)
   Corporate income tax                                             30,628                              161,466
                                                     ----------------------               ----------------------
NET LOSS                                           $              (801,817)             $              (202,828)
                                                     ======================               ======================
Loss per share                                     $                 (1.28)             $                 (0.32)
                                                     ======================               ======================
Weighted average number of shares                 
   used in computation                                             627,600                              627,600
                                                     ======================               ======================
</TABLE>

See accompanying notes to financial statements.

                                      11
<PAGE>
 
INNOVATIVE MEDICAL SYSTEMS CORP
- --------------------------------------------------------------------------------
Notes to financial statements
October 31, 1997 and 1996



1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
    ------------------------------------------

A summary of the company's significant accounting policies applied in the
preparation of the accompanying financial statements follows:


BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS

INNOVATIVE MEDICAL SYSTEMS CORP was incorporated under the laws of the State of
Pennsylvania on December 8, 1976.  The corporation is a C Corporation.

INNOVATIVE MEDICAL SYSTEMS CORP is primarily engaged in the design and
manufacture of medical equipment.  The company's financial statements are
presented in accordance with generally accepted accounting principles.

REVENUE RECOGNITION

Revenue from the manufacture of medical equipment is generally recognized when
products are shipped to the customer.  Income is reported on the accrual method
for financial statement purposes.

INVENTORIES

Inventories are stated at the lower of cost or market.  Cost is determined
generally on a first-in, first-out (FIFO) method.  Valuations are based on the
cost of material, direct labor and manufacturing overhead, and do not exceed net
realizable values.  Inventories are comprised of the following components:

<TABLE>
<CAPTION>
                               October 31, 1997             October 31, 1996
                             ---------------------        ---------------------
<S>                          <C>                          <C>
     Raw materials                        $843,355                     $794,097
     Work in process                       162,680                      126,011
     Finished goods                         16,625                       65,728
                             ---------------------        ---------------------
                                                          
                                        $1,022,660                     $985,836
                             =====================        =====================
</TABLE>

Cost of work-in-process includes purchased materials, direct labor and allocated
overhead.

ACCOUNTS RECEIVABLE - TRADE

It is the management's policy to write-off uncollected accounts receivable at
the time their collection becomes doubtful.  A provision for doubtful accounts
is maintained at approximately 3% of the accounts receivable balance, an amount
management deems appropriate.



See accompanying notes to financial statements.


                                      12
<PAGE>
 
INNOVATIVE MEDICAL SYSTEMS CORP
- ------------------------------------------------------------------------------- 
Notes to financial statements
October 31, 1997 and 1996



FIXED ASSETS AND ACCUMULATED DEPRECIATION

Fixed assets are recorded at their cost and include expenditures for major
improvements that substantially increase their useful life.  Repairs and
maintenance are expensed as incurred.

For financial reporting purposes, depreciation is provided generally on a
straight-line basis over the estimated useful lives of the related assets.  For
income tax purposes, depreciation is computed by using various accelerated
methods and, in some cases, different useful lives than those used for financial
reporting purposes.

The following net fixed assets remain at October 31, 1997:

<TABLE>
<S>                                    <C>
Building and improvements                $1,463,309
Machinery and equipment                     161,513
Tooling                                      99,589
</TABLE>

DEFERRED INCOME TAXES

The company has adopted Statement of Financial Accounting Standard (SFAS) No
109, "Accounting for Income Taxes".  SFAS No 109 requires under the liability
method, that deferred tax liabilities are recognized for the estimated future
tax consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax
bases.  Deferred tax assets and liabilities are measured using enacted tax rates
in effect for the year in which temporary differences are expected to be
recovered or settled.  Valuation allowances are established when necessary to
reduce deferred tax assets to the amount expected to be realized.

Deferred income taxes have been provided for timing differences, resulting from
depreciation expense which is recognized differently for income tax and
financial reporting purposes.


2.  LOANS
    -----

The following loans are outstanding at October 31, 1997:

<TABLE>
<CAPTION>
                                                                    Long
                                        Current                     Term                      Total
                                 --------------------   --------------------------   ---------------------
<S>                              <C>                    <C>                          <C>
Mellon Bank                                  $389,345                   $        0              $  389,345
AT&T Small Business Lending                    53,167                    1,486,204               1,539,371
Shareholders                                  162,840                            0                 162,840
                                 --------------------   --------------------------   ---------------------
 
     Total                                   $605,352                   $1,486,204              $2,091,556
 
</TABLE>


See accompanying notes to financial statements.


                                      13
<PAGE>
 
INNOVATIVE MEDICAL SYSTEMS CORP
- --------------------------------------------------------------------------------
Notes to financial statements
October 31, 1997 and 1996



The $1,539,371 loan due to AT&T Small Business Lending Corp is a mortgage on the
building.  This is a 15-year mortgage.  The interest rate is 10.25%.  The
Building, equipment and machinery and all contract rights and general
intangibles are held as collateral for this mortgage.

The $389,345 due to Mellon Bank is owed pursuant to a line of credit.  The
inventory and accounts receivable are collateral for this loan.  The formula
used to determine the borrowing base is 80% of eligible accounts receivable and
20% of eligible inventory.  At October 31, 1997 Innovative Medical Systems Corp
was in default of this loan.

On September 30, 1994 the company bought back a large portion of stock from a
major shareholder.  At that time the company entered into an agreement to pay
$225,000 over three years for a covenant not-to-compete.  At October 31, 1997
the balance owed was $45,156.

There are additional shareholders loans due of $117,684 at October 31, 1997.
They are all due within one year.  Interest is due at 10%.

The aggregate annual maturates of long-term debt during the years ending October
31, 1999 to 2002 are as follows:  1999 - $57,752;  2000 - $63,958;  2001 -
$70,830;  2002 - $78,441.


3.  PENSION
    -------

The company sponsors a 401(k)-pension plan.   An employee can contribute up to
6% of their annual pay.  The company will match 10% of an employees
contribution.  For 1997 the amount of pension expense included in administrative
expenses was $2,195.


4.  DEFERRED INCOME
    ---------------

Revenues received in advance from engineering projects are recognized on
engineering hours.  This method is used because management considers hours
incurred to be the best available measure of progress on these projects.

Contract costs include all direct material and labor costs and those indirect
costs related to contract performance, such as indirect labor, supplies, tools,
repairs and depreciation costs.  Selling, general, and administrative costs are
charged to expense as incurred.  Provisions for estimated losses on uncompleted
contracts are made in the period in which such losses are determined.  Changes
in job performance, job conditions, and estimated profitability, including those
arising from contract penalty provisions, and final contract settlements may
result in revisions to costs and income and are recognized in the period in
which the revisions are determined.

The $175,000 in Deferred Income was a payment in advance for units not completed
or shipped at October 31, 1997.  These units were included in the Work in
Process inventory.

See accompanying notes to financial statements.


                                      14
<PAGE>
 
INNOVATIVE MEDICAL SYSTEMS CORP
- ------------------------------------------------------------------------------- 
Notes to financial statements
October 31, 1997 and 1996


5.  INCOME
    ------

The Net Sales includes both the sale of equipment and development income in the
following amounts:

<TABLE>
<CAPTION>
                                      October 31, 1997        October 31, 1996
                                   ----------------------   ---------------------
                                                            
<S>                                <C>                      <C>
Manufacturing Sales                            $1,913,025              $2,845,875
Engineering fees                                  299,698                 599,756
                                   ----------------------   ---------------------
                                                            
     Net Sales                                 $2,212,723              $3,445,631
                                   ======================   =====================
</TABLE>

The "Net Sales" is the total sales net of discounts, returns and allowances and
royalty payments.


6.  OTHER ASSETS
    ------------

Covenant not-to-compete
- -----------------------

A covenant-not-to-compete was entered into with the previous shareholder of
INNOVATIVE MEDICAL SYSTEMS CORP.  This amount, valued at $225,000, has been
capitalized and is being amortized over the three-year term of the agreement.

The refinance costs were incurred on the refinancing of the mortgage to AT&T and
the refinance of the line of credit with Mellon Bank.  These costs are being
amortized over fifteen years.


7.  INCOME TAXES (BENEFIT)
    ----------------------

The provision for income taxes (benefit) is as follows:

<TABLE>
<CAPTION>
                                                  October 31, 1997                  October 31, 1996
                                              -------------------------        --------------------------
<S>                                           <C>                              <C>
     Currently payable                                       $       0                         $       0
     Deferred                                                  (30,628)                         (161,466)
                                              ------------------------         -------------------------
                                                                               
                                                             $ (30,628)                        $(161,466)
                                              ========================         =========================
</TABLE>

The losses of Innovative Medical Systems Corp for income tax purposes resulted
in the recognition of deferred income tax for October 31, 1996 and a refund of
income taxes for October 31. 1997.  There is a loss carryforward for tax
purposes of $727,334.  The entire carryfoward expires October 31, 2012.



See accompanying notes to financial statements.


                                      15
<PAGE>
 
INNOVATIVE MEDICAL SYSTEMS CORP
- --------------------------------------------------------------------------------
Notes to financial statements
October 31, 1997 and 1996



Deferred Taxes  Deferred taxes reflect the net tax effects of (a) temporary
differences between the carrying amounts of assets and liabilities for financial
reporting purposes and the amounts used for income tax purposes, and (b)
operating losses and tax credit carryforwards.

The tax effects of significant items comprising Innovative Medical Systems
Corp`s deferred taxes as of October 31, 1997 were as follows:

<TABLE>
<CAPTION>
                                                       October 31, 1997              October 31, 1996
                                                  --------------------------    --------------------------
Deferred tax assets:
<S>                                               <C>                           <C>
     Federal net operating loss carryforward                       $ 247,284                     $       0
     Impact of temporary differences                                  96,968                       117,586
                                                  --------------------------    --------------------------
                                                                                
Total                                                                344,252                       117,586
                                                                                
Valuation allowance                                                 (344,252)                     (117,586)
                                                  --------------------------    --------------------------
                                                                                
Net deferred taxes                                                 $       0                     $       0
                                                  ==========================    ==========================
</TABLE>                                            
                                                    
Temporary differences result from depreciation of fixed assets.
                                                  
Statement of Financial Accounting Standards No 109 requires that the tax benefit
of net operating losses and temporary differences be recorded as an asset to the
extent that management assesses that realization is "more likely than not".
Realization of the future tax benefits is dependent on Innovative Medical
Systems Corp's ability to generate sufficient taxable income within the
carryforward. Because of Innovative Medical Systems Corp's recent history of
operating losses, management has provided a valuation allowance for its net
deferred tax assets.


8.  SUBSEQUENT STOCK EXCHANGE
    -------------------------

On December 31, 1997 100% of the outstanding stock of Innovative Medical Systems
Corp was exchanged for stock of OXIS International Inc.  At that date Oxis
International Inc became the 100% shareholder of Innovative Medical Systems
Corp.



See accompanying notes to financial statements.



                                      16

<PAGE>
 
                                 Exhibit 99(b)

         OXIS International, Inc. and Innovative Medical Systems Corp.

                   Unaudited Pro Forma Financial Information



On December 31, 1997, OXIS International, Inc. ("OXIS") consummated the
acquisition of Innovative Medical Systems Corp. ("IMS") pursuant to a
transaction whereby OXIS acquired all of the outstanding stock of IMS.  The
unaudited pro forma financial information presented below combines the balance
sheets of OXIS as of September 30, 1997, with the balance sheet of IMS as of
July 31, 1997, and the statements of operations of OXIS for the year ended
December 31, 1996, and nine months ended September 30, 1997 with the statements
of operations of IMS for the year ended October 31, 1996 and the nine months
ended July 31, 1997, respectively.  This pro forma combination gives effect to
the following assumptions.


*  That the acquisition of IMS by OXIS occurred at the beginning of each of the
   periods presented.

*  That the acquisition of IMS would be accounted for as a purchase.

*  That the purchase price paid by OXIS to acquire IMS would be $1,559,000,
   consisting of: (1) 1,000,000 shares of OXIS common stock issued and (2) the
   present value of expected minimum future payments aggregating $1,250,000. The
   shares of common stock issued have been valued at the average per share
   closing price of OXIS' common stock for the three trading days before and
   after November 1, 1997, the date on which the two companies reached agreement
   on the purchase price.


It should be noted that the unaudited pro forma financial information:

*  does not give effect to any costs of combining the companies or to any
   efficiencies in operations that could be achieved by combining the companies,

*  does not purport to be indicative either of the results of operations that
   would have occurred had the acquisition been consummated at the date
   indicated, or of future combined results of operations of the companies.



The unaudited pro forma financial information presented below should be read in
conjunction with the notes hereto and the separate financial statements of the
two companies.  Unaudited financial statements of the Company as of September
30, 1997 are included in the Company's third quarter Form 10-Q report filed with
the Securities and Exchange Commission.  Financial statements of IMS as of and
for the years ended October 31, 1996 and 1997 are included in this report on
Form 8-K/A.

                                      17
<PAGE>
 
                     Unaudited Pro Forma Balance Sheet of
                           OXIS International, Inc.
        (OXIS International, Inc. and Innovative Medical Systems Corp.)
                       Combined as of September 30, 1997


<TABLE>
<CAPTION>
                                                                          Pro forma          Pro forma
ASSETS                                          OXIS            IMS       adjustments        combined
<S>                                           <C>           <C>           <C>            <C> 
Current assets:                                                                       
  Cash and cash equivalents                   $2,752,000   $        0                      $ 2,752,000
  Accounts receivable                            882,000       459,000                       1,341,000
  Inventories                                    733,000     1,050,000                       1,783,000
  Prepaid and other                              373,000        38,000                         411,000
                                              ----------    ----------                     -----------
     Total current assets                      4,740,000     1,547,000                       6,287,000 
                                                                                      
Property and equipment, net                    1,214,000    1,857,000      $770,000 (1)      3,841,000
                                                                                      
Technology for developed products                                                       
   and custom assays, net                                   3,244,000             0          3,244,000                     
                                                                                      
                                                                                      
Other assets                                     255,000       72,000                          327,000
                                              ----------    ----------     --------        ----------- 
                                                                                      
     Total assets                             $9,453,000    $3,476,000     $770,000        $13,699,000
                                              ==========    ==========     ========        ===========
                                                          
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Notes payable                               $1,148,000    $  407,000                     $ 1,555,000
  Accounts payable                             1,348,000       399,000                       1,747,000
  Customer deposits                              116,000             0                         116,000
  Accrued liabilities                            579,000       207,000                         786,000
  Current portion of                                                                                    
    long-term debt                                 9,000        219,000                        228,000
                                              ----------    -----------                    ----------- 
     Total current liabilities                 3,200,000      1,232,000           0          4,432,000
                                                                                         
Long-term debt after one year                                 1,455,000                       1,455,000
 
Shareholders' equity:
     Preferred stock                              16,000             0                          16,000
     Common stock                                           
       OXIS                                   13,287,000                    500,000 (1)     13,787,000
       IMS                                                      21,000     (21 ,000)(1)              0
     Additional paid in capital                             
       OXIS                                   30,321,000                  1,059,000 (1)     31,380,000
       IMS                                       718,000                   (718,000)(1)              0
     Retained Earnings                                      
       OXIS                                  (37,132,000)                                  (37,132,000)
       IMS                                                   1,550,000   (1,550,000)(1)
     Treasury stock                                         (1,500,000)   1,500,000 (1)
     Accumulated translation adjustments        (239,000)                         0           (239,000)
                                              ----------    ----------   ----------        -----------
 
     Total shareholders' equity                6,253,000       789,000      770,000          7,812,000 
                                              ----------    ----------     --------        -----------

Total liabilities and shareholders' equity    $9,453,000    $3,476,000     $770,000        $13,699,000
                                              ==========    ==========     ========        ===========
</TABLE> 
                                                  
                                                  

                                      18
<PAGE>
 
                   NOTES TO UNAUDITED PRO FORMA BALANCE SHEET
                               SEPTEMBER 30, 1997


1. To reflect the pro forma purchase price, $1,559,000, paid to acquire IMS,
   consisting of: (1) 1,000,000 shares of OXIS common stock issued and (2) the
   present value of expected minimum future payments (to be paid in shares of
   OXIS common stock) aggregating $1,250,000.  The shares of common stock issued
   have been valued at the average per share closing price of OXIS' common stock
   for the three trading days before and after November 1, 997, the date on
   which the two companies reached agreement on the purchase price.  The excess
   of the pro forma purchase price over the shareholders' equity of IMS has been
   allocated to property and equipment.

   Stock issued in connection with the acquisition has been recorded in
   shareholders' equity as follows:


        Common stock, 1,000,000 shares at

           $.50 par value                     $   500,000
        Additional paid-in capital              1,059,000
                                              -----------
                                              $ 1,559,000
                                              ===========


2. In addition to the minimum payments of $1,250,000, the stockholders of IMS
   may receive additional payments (in OXIS common stock) of up to $2,250,000
   depending on future revenues of IMS through 2002.  No effect has been given
   in the pro forma balance sheet to the potential additional payments.


                                      19
<PAGE>
 
                  Unaudited Pro Forma Statement of Operations
                           OXIS International, Inc.
        (OXIS International, Inc. and Innovative Medical Systems Corp.)
                 Combined for the year ended December 31, 1996


<TABLE>
<CAPTION>
                                                               Pro forma      Pro forma
                                           OXIS       IMS      adjustments      combined
<S>                                    <C>         <C>         <C>            <C>
Revenues:
  Sales                                $ 4,802,000  $3,446,000                 $ 8,248,000
  Royalties                                 65,000                                  65,000
                                       -----------  ----------                 -----------
     Total revenues                      4,867,000   3,446,000                   8,313,000
  
Costs and expenses:
 
  Cost of sales                          3,009,000   2,904,000  $ 124,000 (1)    6,037,000
  Research and development               4,908,000                               4,908,000
  Sales, general and administrative      2,841,000     748,000     31,000 (1)    3,620,000
                                       -----------  ----------  ---------      -----------
 
     Total costs and expenses           10,758,000   3,652,000    155,000       14,565,000
                                       -----------  ----------  ---------      -----------
 
Operating loss                          (5,891,000)   (206,000)  (155,000)      (6,252,000)

Interest income and finance charges         37,000      74,000                     111,000
 
Interest expense                          (138,000)   (232,000)                   (370,000)
                                       -----------  ----------  ---------      -----------

Net loss before income tax credits      (5,992,000)   (364,000)  (155,000)      (6,511,000)
 
Credit for income taxes                          0     161,000                     161,000
                                       -----------  ----------  ---------      -----------
 
Net Loss                               $(5,992,000) $ (203,000) $(155,000)     $(6,350,000)
                                       ===========  ==========  =========      ===========
 
Net loss per OXIS share                $      (.21)                            $      (.22)
                                       ===========                             ===========

</TABLE> 

                                      20
<PAGE>
 
             NOTES TO UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                     FOR THE YEAR ENDED DECEMBER 31, 1996


1. To reflect amortization, on a straight-line basis over 7 years, of the pro
   forma purchase price adjustment of $1,084,000 which was allocated to
   property, plant and equipment.

   The pro forma amortization has been allocated 80% to cost of sales and 20% to
   sales, general and administrative expense.

2. The net loss per OXIS share in the unaudited pro forma statement of
   operations has been computed based on 28,596,320 common shares outstanding
   upon consummation of the acquisition.

3. The unaudited pro forma statement of operations includes the revenues and
   expenses of OXIS International, Inc. for the year ended December 31, 1996,
   and the revenues and expenses of IMS for the year ended October 31, 1996.




                                      21
<PAGE>
 
                  Unaudited Pro Forma Statement of Operations
                           OXIS International, Inc.
        (OXIS International, Inc. and Innovative Medical Systems Corp.)
             Combined for the nine months ended September 30, 1997

<TABLE> 
<CAPTION> 
                                                                  Pro forma       Pro forma
                                            OXIS       IMS       adjustments        combined
Revenues:                                                                    
<S>                                   <C>          <C>         <C>            <C>
                                                                             
  Sales                                $ 3,137,000  $1,522,000                   $ 4,659,000
  Royalties                                209,000                                   209,000
                                       -----------  ----------                   -----------
     Total revenues                      3,346,000   1,522,000                     4,868,000
                                                                             
                                                                             
                                                                             
Costs and expenses:                                                          
                                                                             
  Cost of sales                          2,148,000   1,399,000   $   93,000 (1)    3,640,000
  Research and development               3,199,000                                 3,199,000
  Sales, general and administrative      2,049,000     614,000       23,000 (1)    2,686,000
                                       -----------  ----------   ----------      -----------
                                                                             
     Total costs and expenses            7,396,000   2,013,000      116,000        9,525,000
                                       -----------  ----------   ----------      -----------
                                                                             
Operating loss                          (4,050,000)   (491,000)    (116,000)      (4,657,000)

Interest income and finance charges         53,000                                    53,000
 
Interest expense                          (112,000)    (149,000)                    (261,000)
                                       -----------    ---------                  -----------
 
Net loss before income tax credits      (4,109,000)    (640,000)   (116,000)      (4,865,000)
 
Credit for income taxes                          0            0           0                0
                                       -----------    ---------   ---------      -----------
 
Net Loss                               $(4,109,000)   $(640,000)  $(116,000)     $(4,865,000)
                                       ===========    =========   =========      ===========
 
Net loss per OXIS share                $      (.14)                              $      (.17)
                                       ===========                               =========== 


</TABLE> 



                                      22
<PAGE>
 
             NOTES TO UNAUDITED PRO FORMA STATEMENT OF OPERATIONS 
                 FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1997


1. To reflect amortization, on a straight-line basis over 7 years, of the pro
   forma purchase price adjustment of $1,084,000 which was allocated to
   property, plant and equipment.

   The pro forma amortization has been allocated 80% to cost of sales and 20% to
   sales, general and administrative expense.

2. The net loss per OXIS share in the unaudited pro forma statement of
   operations has been computed based on 28,596,320 common shares outstanding
   upon consummation of the acquisition.

3. The unaudited pro forma statement of operations includes the revenues and
   expenses of OXIS International, Inc. for the nine months ended September 30,
   1997, and the revenues and expenses of IMS for the nine months ended July 31,
   1997.



                                      23


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