CARRINGTON LABORATORIES INC /TX/
S-3/A, 1997-04-16
PHARMACEUTICAL PREPARATIONS
Previous: UNITED SECURITY BANCSHARES INC, S-4/A, 1997-04-16
Next: RADYNE CORP, S-1/A, 1997-04-16




   As filed with the Securities and Exchange Commission on April 16, 1997

                          Registration No. 333-17177
                                                                          


                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                                ______________

                       PRE-EFFECTIVE AMENDMENT NO. 1 TO
                                   FORM S-3
           REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                ______________

                        Carrington Laboratories, Inc.
            (Exact name of registrant as specified in its charter)

   Texas                                                   75-1435663
   -------                                             ------------------      
   (State or other jurisdiction of                      (I.R.S. Employer
   incorporation or organization)                      Identification No.)

                            2001 Walnut Hill Lane

                             Irving, Texas  75038
                                (972) 518-1300
        (Address, including zip code, and telephone number, including
           area code, of registrant s principal executive offices)

         CHRISTOPHER S. RECORD  
   Vice President, Business Development                    Copy to:
          and Strategic Planning                       NORMAN R. ROGERS

  Carrington Laboratories, Inc.                       Thompson & Knight,
  2001 Walnut Hill Lane                          A Professional Corporation
  Irving, Texas  75038                        1700 Pacific Avenue, Suite 3300
  (972) 518-1300                                     Dallas, Texas 75201

        (Name, address, including zip code, and telephone number,
                including area code, of agent for service)

      Approximate date of commencement of proposed sale to the public:  
    From time to time after this registration statement becomes effective
   as determined by market conditions.

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

              If  any  of the securities being registered on this Form are
   to  be  offered  on  a delayed or continuous basis pursuant to Rule 415
   under the Securities Act of 1933, other than securities offered only in
   connection  with  dividend  or  interest  reinvestment plans, check the
   following box.  X                    X
<PAGE>
              If  this Form is filed to register additional securities for
   an  offering  pursuant  to Rule 462(b) under the Securities Act, please
   check  the  following  box  and  list  the  Securities Act registration
   statement  number  of  the earlier effective registration statement for
   the same offering.   

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

              If  delivery  of  the  prospectus  is  expected  to  be made
   pursuant to Rule 434, please check the following box.   


              The  registrant hereby amends this registration statement on
   such  date  or  dates  as  may be necessary to delay its effective date
   until  the registrant shall file a further amendment which specifically
   states   that  this  registration  statement  shall  thereafter  become
   effective in accordance with Section 8(a) of the Securities Act of 1933
   or until the registration statement shall become effective on such date
   as the Commission, acting pursuant to said Section 8(a), may determine.
<PAGE>
      
   Information contained herein is subject to completion or amendment.  A
   registration statement relating to these securities has been filed with
   the Securities and Exchange Commission.  These securities may not be sold
   nor may offers to buy be accepted prior to the time the registration
   statement becomes effective.  This prospectus shall not constitute an
   offer to sell or the solicitation of an offer to buy nor shall there be
   any sale of these securities in any State in which such offer, 
   solicitation or sale would be unlawful prior to registration or 
   qualification under the securities laws of any such State.


                 SUBJECT TO COMPLETION, DATED APRIL ___, 1997

                                PROSPECTUS
                              953,753 Shares
                       Carrington Laboratories, Inc.

                                Common Stock

             This  Prospectus relates to the sale from time to
             time   by   certain   shareholders   (the "Selling
             Shareholders")  of  Carrington  Laboratories, Inc., a
             Texas  corporation ("Carrington"  or the "Company"), of
             shares  (the "Shares") of Common Stock, par value $.01
             per share ("Common Stock"), of the Company that may be
             acquired from time to time by the Selling Shareholders
             upon  conversion  of  shares  of  Series E Convertible
             Preferred   Stock  of  the  Company  (the "Series E
             Preferred  Stock" ) sold by the Company to the Selling
             Shareholders  in  a private placement in October 1996.
             See  Selling Shareholders.   The Company will receive
             none  of  the  proceeds from sales of the Shares.  The
             Common  Stock  is listed on the Nasdaq National Market
             ("Nasdaq") under the symbol "CARN". 


             The  conversion  price  per  share  of  Series  E
             Preferred  Stock  (the "Conversion Price") is equal to
             the  lower  of  (x)  $25.20 (as adjusted for any stock
             split  or  stock  dividend  with respect to the Common
             Stock) and (y) 87% of the average of the daily closing
             bid prices of the Common Stock on Nasdaq for the three
             consecutive  trading  days  ending  on the trading day
             immediately  preceding  the  date of conversion of the
             Series  E  Preferred Stock (such average daily closing
             bid  price, the "Current Market Price").  Accordingly,
             the  number  of  Shares a Selling Shareholder acquires
             upon  any  conversion of its Series E Preferred Stock,
             and  thus the number of Shares offered by such Selling
             Shareholder  pursuant  to this Prospectus, will depend
             on the Current Market Price of the Common Stock on the
             date  of conversion.  If all the presently outstanding
             shares  of Series E Preferred Stock are converted into
             Common  Stock,  and assuming a Current Market Price of
             the  Common  Stock on the date of conversion of $3.98,
<PAGE>
             the  total  number  of  Shares offered hereby would be
             953,753.    On April 11, 1997, the closing sales price
             of  the  Common  Stock on Nasdaq was $5.125 per share.
             See "Selling Shareholders." 

             The  Shares  may be sold from time to time by the
             Selling  Shareholders, or by their pledgees, donees or
             other  successors in interest.  Such sales may be made
             on  Nasdaq or otherwise at prices and on terms related
             to  the  then current market price of the Common Stock
             or in negotiated transactions.  The Shares may be sold
             by  any  one  or more of the following methods:  (a) a
             block  trade  in which the broker or dealer so engaged
             will  attempt  to  sell  the  Shares as agent, but may
             position and resell a portion of a block as principal 
             to facilitate the transaction;  (b)  purchases  by  a  
             broker or dealer as principal, and resale  by  such  
             broker  or  dealer,  for its account pursuant to this
             Prospectus;  (c)  ordinary  brokerage  transactions and 
             transactions in which  the  broker  solicits  purchasers;  
             and (d) privately negotiated transactions.  
             See  Plan of Distribution. 

                  The  Company has agreed with the Selling Shareholders to
   register the Shares offered hereby.  The Company has also agreed to pay
   all  reasonable  expenses  incident  to  such  registration, other than
   underwriting  discounts  and commissions and other fees and expenses of
   investment  bankers  and  other  than  brokerage  commissions.    It is
   estimated  that  the  fees  and  expenses  payable  by  the  Company in
   connection  with  the  registration of the Shares will be approximately
   $50,000.    The  Company intends to keep the Registration Statement (as
   hereinafter defined), of which this Prospectus is a part, effective for
   a  period  ending  no  later  than  October  21,  1998.    See  Selling
   Shareholders. 


           THE SHARES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.
                   SEE  RISK FACTORS  BEGINNING ON PAGE 4.

        THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE

          SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
          COMMISSION NOR HAS THE COMMISSION OR ANY STATE SECURITIES
              COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF
                 THIS PROSPECTUS.  ANY REPRESENTATION TO THE
                       CONTRARY IS A CRIMINAL OFFENSE.

         The date of this Prospectus is _____________________, 1997.

<PAGE>   
                  No  person is authorized in connection with the offering
   made  hereby  to give any information or to make any representation not
   contained  or  incorporated  by  reference  in this Prospectus, and any
   information  or  representation  not  contained  or  incorporated  by
   reference  herein  must not be relied upon as having been authorized by
   the  Company  or  any  Selling  Shareholder.   This Prospectus does not
   constitute an offer to sell or a solicitation of an offer to buy any of
   the securities offered hereby in any jurisdiction to any person to whom
   it  is  unlawful  to make such offer in such jurisdiction.  Neither the
   delivery  of  this  Prospectus nor any sale made hereunder shall, under
   any  circumstances,  create any implication that the information herein
   is correct as of any time subsequent to the date hereof.


                              TABLE OF CONTENTS

                                                                      Page
   Available Information   . . . . . . . . . . . . . . . . . . . . . .  2
   Incorporation of Certain Documents by Reference . . . . . . . . . .  2
   The Company . . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   Recent Developments . . . . . . . . . . . . . . . . . . . . . . . .  3
   Risk Factors  . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   Disclosure Regarding Forward-Looking Statements . . . . . . . . . . .6
   Selling Shareholders  . . . . . . . . . . . . . . . . . . . . . . . .7
   Plan of Distribution  . . . . . . . . . . . . . . . . . . . . . . . .8
   Legal Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
   Experts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9



                            AVAILABLE INFORMATION

                  The Company is subject to the informational requirements
   of  the  Securities  Exchange  Act  of  1934, as amended (the "Exchange
   Act"), and in accordance therewith files reports, proxy statements and
   other  information  with  the  Securities  and Exchange Commission (the
   "Commission").  Reports, registration statements, proxy statements and
   other  information  filed  by  the  Company  with the Commission can be
   inspected  and  copied at the public reference facilities maintained by
   the  Commission  at Room 1024, 450 Fifth Street, N.W., Washington, D.C.
   20549,  and  at  the  Commission's  regional  offices at 7 World Trade
   Center,  Suite  1300,  New  York,  New York  10048 and 500 West Madison
   Street,  Suite  1400, Chicago, Illinois 60661.  Copies of such material
   can  also  be  obtained from the Commission at prescribed rates through
   its  Public  Reference  Section  at 450 Fifth Street, N.W., Washington,
   D.C.  20549.   These reports, registration statements, proxy statements
   and  other  information  may  be  obtained  from  the web site that the
   Commission maintains at http://www.sec.gov. 

                  The Company has filed with the Commission a Registration
   Statement on Form S-3 under the Securities Act of 1933, as amended, for
   the  registration  of  1,732,279 shares of Common Stock with respect to
   the  offering  made  hereby (such Registration Statement, including all
   amendments or supplements thereto, the "Registration Statement").  This
<PAGE>   
   Prospectus,  which forms a part of the Registration Statement, does not
   contain  all  the  information set forth in the Registration Statement,
   certain  parts  of which have been omitted in accordance with the rules
   and  regulations  of  the  Commission.    Statements  contained  herein
   concerning  the  provisions  of  certain  documents are not necessarily
   complete  and,  in each instance, reference is made to the copy of such
   document filed as an exhibit to the Registration Statement or otherwise
   filed  with  the  Commission.   Each such statement is qualified in its
   entirety by such reference.
   

               INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

                  The  following  documents  filed by the Company with the
   Commission  (File  No.  0-11997)  pursuant  to  the  Exchange  Act  are
   incorporated herein by reference:


                  (1)    The  Company's Annual Report on Form 10-K for the
   fiscal year ended December 31, 1996 (as amended by Form 10-K/A filed on
   April 7, 1997);

                  (2)    The  description of the Common Stock contained in
   the  Registration Statement on Form 8-A of the Company heretofore filed
   by the Company with the Commission, including any amendments or reports
   filed for the purpose of updating such description; and

                  (3)    All other documents filed by the Company pursuant
   to  Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to
   the  date  of  this  Prospectus  and  prior  to  the termination of the
   offering of the Shares.


                  Any  statement  contained  herein  or  in  a document or
   information  incorporated  or  deemed  to  be incorporated by reference
   herein  shall  be  deemed  to be modified or superseded for purposes of
   this  Prospectus  to the extent that a statement contained herein or in
   any  subsequently  filed  document  which  also is, or is deemed to be,
   incorporated  by  reference  herein,  modifies  or  supersedes  such
   statement.    Any such statement so modified or superseded shall not be
   deemed,  except  as  so modified or superseded, to constitute a part of
   this Prospectus.

                  The  Company  will provide without charge to each person
   to  whom this Prospectus is delivered, upon the written or oral request
   of any such person, a copy of any and all of the foregoing documents or
   information that has been incorporated by reference in this Prospectus,
   other  than  exhibits  to  such  documents  (unless  such  exhibits are
   specifically  incorporated by reference into such documents).  Requests
   should  be  directed to Christopher S. Record, Vice President, Business
   Development and Strategic Planning, Carrington Laboratories, Inc., 2001
   Walnut Hill Lane, Irving, Texas 75038, telephone (972) 518-1300.
<PAGE>

                                 THE COMPANY

                  Carrington  is  a  research-based  pharmaceutical  and
   medical  device  company  engaged in the development, manufacturing and
   marketing  of  naturally derived complex carbohydrate and other natural
   product  therapeutics  for  the  treatment  of  major illnesses and the
   dressing  and management of wounds.  The Company sells, using a network
   of  distributors,  non-prescription products through its Wound and Skin
   Care  Division,  veterinary medical devices and pharmaceuticals through
   its  Veterinary  Medical  Division  and  consumer  products through its
   consumer  products   subsidiary, Caraloe, Inc.  The Company's research
   and  product  portfolio  are  based  primarily  on complex carbohydrate
   technology derived from the Aloe vera plant.

                  The Company s principal executive offices are located at
   2001 Walnut Hill Lane, Irving, Texas 75038, and its telephone number is
   (972) 518-1300.
                  

                             RECENT DEVELOPMENTS

                  On  October  31, 1996, the Company announced the results
   of  a  recently  completed  Phase  III  Pivotal  trial of the Company's
   proprietary  compound  Aliminase[TM] for  the  treatment  of  ulcerative
   colitis.   Results of this trial indicated no statistically significant
   differences  that  would  support a conclusion that Aliminase[TM] has a
   therapeutic  effect  in  treating ulcerative colitis.  As a result, the
   Company  terminated a planned second clinical trial of Aliminase[TM] and
   placed further testing of Aliminase[TM] on hold.

                  On  March 4, 1997, the Company completed a repurchase of
   50%  of its outstanding Series E Preferred Stock at a purchase price of
   $11,300  per share, for a total cash purchase price of $3,729,000.  See
   "Selling Shareholders." 

                  Effective  March 31, 1997, the Company's supply contract
   relating to the sale of Manapol[R], a freeze dried Aloe vera powder, was
   terminated.  See "Risk Factors - Mannatech Contract." 


                                 RISK FACTORS

                  The shares of Common Stock offered hereby involve a high
   degree  of  risk.  Prospective purchasers should carefully consider the
   following  risk factors, in addition to the other information contained
   or incorporated by reference in this Prospectus.

                  No  Assurance  of  Profits.   The Company incurred a net
   loss  in  each of the fiscal years 1983, the year of its initial public
   offering,  through  1990 and had to rely on outside sources of funds to
   maintain its liquidity during this period.  In each of the fiscal years
   1991  through  1994,  the  Company had positive earnings.  However, the
   Company  sustained  net losses during 1995 and 1996, although it made a
   small  profit  (approximately  $17,000)  in the fourth quarter of 1996.
   Thus,  there  can  be  no  assurance  that the Company will conduct its
   operations profitably, either currently or in the future.
<PAGE>
                  Mannatech  Contract.    In  March 1995, Caraloe, Inc., a
   wholly  owned  subsidiary  of  the  Company,  and  Mannatech,  Inc.
   ("Mannatech") entered into a supply agreement (the "Supply Agreement")
   pursuant  to  which  Mannatech  agreed  to  purchase from Caraloe, Inc.
   certain  quantities of Manapol[R], a freeze-dried Aloe vera powder.  The
   Supply Agreement provided for renegotiation by the parties by March 15,
   1997  of  the  purchase  price  to  be  paid by Mannatech for Manapol[R].
   Because the purchase price was not mutually agreed to by the parties by
   that   time,  the  Supply  Agreement  terminated  on  March  31,  1997.
   Mannatech  was  the  Company's largest customer in 1996, accounting for
   total  sales  of $3,273,000 and a contribution margin of $672,000 after
   cost  of  goods.    As  the  Supply Agreement between Mannatech and the
   Company  was  not  renewed, the exclusive license agreement for Manapol
   [R] also terminated on March 31, 1997.  The Company is now able to sell
   Manapol[R] to  other  third  parties as well as use it in the Company's
   products.    It  is  expected  that Mannatech will continue to purchase
   Manapol[R] on an as needed basis.  Termination of the Supply Agreement
   could  have  a  material  adverse  effect  on  the Company's results of
   operations.    However,  the  Company  believes that its cost reduction
   programs  in  combination  with  its  current  cash  resources,  over
   $6,800,000  as  of  March 31, 1997, will provide the funds necessary to
   fund   its  current  operations.    Although  the  Company  intends  to
   aggressively seek new customers for Manapol[R], there is no assurance it
   will succeed in that effort.  Virtually all Manapol[R] is produced on an
   as  required  basis  to  fill  open  purchase orders.  As such, the
   termination  of the Supply Agreement will not have a significant impact
   on inventory valuation.  The Company's management is also exploring the
   potential  for new products to fill capacity in the Costa Rica facility
   where  Manapol[R] is currently produced.  Additionally, the Company has
   already  planned for further cost reductions at the Costa Rica facility
   in  the  event  lost  production  cannot  be replaced with sales of new
   products.

                  
   Potential  Write-Down of Costa Rica Assets.  The production capacity of
   the  Company's aloe vera processing plant in Costa Rica, where its bulk
   freeze-dried  aloe  vera  extract  is manufactured, is greater than the
   Company's current level of usage of the plant.  Although the Company is
   currently  exploring  other  options to utilize the available capacity,
   there  is  no  assurance that the Company will be able to utilize fully
   the  Costa  Rica  plant's  capacity.  The Company adopted Statement of
   Financial  Accounting Standards No. 121,  Accounting for the Impairment
   of  Long-Lived  Assets  and  for  Long-Lived  Assets  to be Disposed Of
   ("SFAS  121")  in  the first quarter of 1996.  SFAS 121 requires that
   long-lived assets held and used by an entity be reviewed for impairment
   whenever  events or changes in circumstances indicate that the carrying
   amounts of the assets may not be recoverable.  At the time of adoption,
   there  was  no  impairment  of  asset  value  in  Costa  Rica  based on
   historical production levels and future capacity requirements needed to
   produce  the Company's drug Aliminase[TM], then under initial phase III
   clinical  trials.   Under SFAS 121, when there is an event or change in
   circumstances  that  may  impair  the recoverability of the assets, the
   carrying amount of the asset should be assessed.  In late October 1996,
   the  Company  received  the  results  of the initial phase III clinical
   trial for the testing of Aliminase[TM] oral capsules which indicated no
   statistically  significant  differences that would support a conclusion
<PAGE>
   that  Aliminase[TM] oral  capsules provide  a therapeutic effect in the
   treatment  of  ulcerative colitis.  As a result, the Company terminated
   the  second  large  scale  clinical trial and placed further testing of
   Aliminase[TM] on hold.    These  results  triggered a new assessment of
   recoverability  of  the Costa Rica plant's assets using the methodology
   provided by SFAS 121 in the fourth quarter of 1996.  The net book value
   of the Costa Rica Plant assets as of December 31, 1996, was $3,958,000.
   The  Company  evaluated  the value of Costa Rica produced components in
   its  current  product  mix  to  determine  the  amount of net revenues,
   excluding Manapol[R] powder sales to Mannatech, attributable to the Costa
   Rica  plant.  Sales to Mannatech were excluded from the analysis as the
   Company  had  been  informed  by Mannatech that the Supply Agreement in
   effect  throughout  1996 would not be renewed.  As the Supply Agreement
   between  Mannatech  and  the  Company  was  not  renewed, the exclusive
   license  agreement for the Manapol[R] trademark also terminated on March
   31, 1997.   The  Company  can  sell  Manapol[R]  powder or license the
   trademark  to  other  third  parties as well as use it in the Company's
   products.  Mannatech may continue to purchase Manapol[R] powder on an as-
   needed  basis,  but no such purchases could be anticipated for the SFAS
   121  analysis.    Cash inflows for 1997 and future years were estimated
   using  management's  current  forecast  and business plan.  All direct
   costs  of  the  facility,  including  certain  allocations  of  Company
   overhead,  were considered in the evaluation of cash outflows.  Results
   indicate  there  is  no  impairment  of value under SFAS 121.  However,
   there is no assurance that future changes in product mix or the content
   of Costa Rica produced components in the current products will generate
   sufficient  revenues  to  recover the costs of the plant under SFAS 121
   methodology.

                  No    Assurance   of   Regulatory   Approvals.      The
   commercialization  of  certain  of the Company's proposed products will
   require  approvals from the Food and Drug Administration and comparable
   regulatory  agencies  in  most  foreign  countries.    To  obtain  such
   approvals, the safety and efficacy of the products must be demonstrated
   through extensive preclinical testing and human clinical trials.  There
   is no assurance that the safety or efficacy of a product, to the extent
   demonstrated  in  preclinical  testing,  will  be  pertinent  to  the
   development  of,  or indicative of the safety or efficacy of, a product
   for  the  human  market.    In addition, there is no assurance that the
   results of clinical trials of a product will be consistent with results
   obtained in preclinical tests.  Furthermore, there is no assurance that
   any  product  will be shown to be safe and effective or that regulatory
   approval for any product will be obtained on a timely basis, if at all.


                  No   Assurance   Pharmaceutical   Products   Will   be
   Commercialized.  The Company currently derives no revenue from the sale
   of  prescription  pharmaceutical  products.   The Company currently has
   several   complex   carbohydrate   pharmaceutical   compounds   under
   development, which are in preclinical and clinical trials.  There is no
   assurance  that  the  Company's  product  development  efforts will be
   successfully  completed  or  that  required  approvals can be obtained.
   Even if products are approved, they may not achieve commercial success.
   Furthermore,  although  the  Company  has  an  established  sales force
   experienced  in  the  marketing  of  nonprescription  pharmaceutical
<PAGE>
   products,  the Company's sales force has very limited experience in the
   marketing  of  prescription-only drugs.  There is no assurance that the
   Company  will  be able to establish an experienced sales force for this
   purpose.

                  Need  for  Additional  Funds;  No  Bank Credit Facility.
   Substantial funding will be required to complete the development of and
   to  commercialize  the  Company's proposed prescription pharmaceutical
   products.    The  Company  does  not  expect  that  revenues  from  its
   operations  will  be  sufficient  to  fund  the  development  and
   commercialization  of such products.  No assurances are given as to the
   Company's success in obtaining additional funding or as to the terms of
   any  such  funding.  In addition, the Company does not currently have a
   bank line of credit or other bank credit facility available to it.

                  Limited  Manufacturing  Experience.  Although members of
   the  Company's management have extensive experience in the business of
   developing,   manufacturing  and  marketing  human  and  animal  health
   products,  the  Company  does  not  have  experience in the large scale
   manufacture  of  bulk or finished dosage forms of complex carbohydrates
   or any other pharmaceutical compound.  In addition, the Company will be
   required  to  expand  its  current manufacturing facilities or contract
   with  third  parties  to  meet  any  requirement  to produce commercial
   quantities  of  finished oral dosage forms of its complex carbohydrates
   and  to meet any long-term requirement to produce commercial quantities
   of finished injectable dosage forms.


                  Government  Regulation.    The  Company  is  subject  to
   regulation  by  numerous  governmental authorities in the United States
   and  other  countries.  Certain of the Company's proposed products will
   require  governmental  approval  or  licensing prior to commercial use.
   The approval process applicable to prescription pharmaceutical products
   usually  takes  several  years  and  typically  requires  substantial
   expenditures.    The  Company  and  any  licensees  of  the Company may
   encounter  significant  delays  or  excessive costs in their respective
   efforts  to  secure  necessary  approvals  or  licenses.  Future United
   States or foreign legislative or administrative acts could also prevent
   or  delay  regulatory  approval  of  the  Company's  or  its licensees
   products.    Failure  to  obtain  requisite  governmental  approvals or
   failure  to  obtain  approvals  of  the  scope requested could delay or
   preclude  the  Company  and any licensees of the Company from marketing
   their  products, or could limit the commercial use of the products, and
   thereby  have  a material adverse effect on the Company's liquidity and
   financial condition.

                  Highly  Competitive  Industry.    There  is  substantial
   competition  in  the pharmaceutical industry.  Potential competitors in
   the United States are numerous and include pharmaceutical, chemical and
   biotechnology  companies.    Many of these companies have substantially
   greater  capital resources, research and development staffs, facilities
   and  expertise  (including in research and development, manufacturing,
   testing,   obtaining  regulatory  approvals  and  marketing)  than  the
   Company.    Furthermore,  some  competitors  may  achieve  product
   commercialization earlier than the Company.
<PAGE>
                  Volatility  of Stock Price.  Since the Company's initial
   public  offering  in  1983,  the  market  price of the Common Stock has
   fluctuated  over  a  wide range, and it is likely that the price of the
   Common Stock will fluctuate in the future.  Announcements of a positive
   or  negative  nature  regarding  technical  innovations, new commercial
   products,  regulatory  approvals, patent or proprietary rights or other
   developments  concerning  the  Company  or its competitors could have a
   significant impact on the market price of the Common Stock.

                  Shares Eligible for Future Sale.  Future sales of shares
   of Common Stock by existing shareholders, or by shareholders (including
   the  Selling  Shareholders)  who receive shares of Common Stock through
   the  exercise of options or warrants, the conversion of preferred stock
   or otherwise, or the perception that such sales might occur, could have
   an adverse effect on the price of the Common Stock.

                  No Dividends Anticipated in the Foreseeable Future.  The
   Company  has  not paid any cash dividends on the Common Stock since its
   initial  public  offering  in  1983 and does not anticipate paying cash
   dividends  on  the Common Stock in the foreseeable future.  Declaration
   of  cash  dividends  on  the Common Stock will depend upon, among other
   things,  future  earnings, the operating and financial condition of the
   Company,  its  capital  requirements  and  general business conditions.
   Under  the  terms  of  a bank loan agreement with NationsBank of Texas,
   N.A.  (originally  relating  to  a  line  of  credit that terminated in
   January 1996 but which remains in effect with respect to an outstanding
   $1,500,000  letter  of  credit  issued by the bank to a supplier of the
   Company  and  secured  by a certificate of deposit of the Company in an
   amount  equal  to the letter of credit), the Company is prohibited from
   declaring  or  paying  cash  dividends on any of its capital stock.  In
   addition,  from and after October 21, 1998, the Company may not pay any
   dividends  on  Common Stock unless and until all dividend rights on any
   outstanding  shares  of  the  Company's Series E Convertible Preferred
   Stock have been satisfied.

                  Product  Liability  Exposure.    The  Company  could  be
   subject  to  product  liability  claims  in  connection with the use of
   products  that  the  Company  and  its  licensees  are  currently
   manufacturing, testing or selling or that the Company and any licensees
   may  manufacture,  test  or  sell in the future.  There is no assurance
   that  the  Company  would  have  sufficient  resources  to  satisfy any
   liability  resulting  from  these  claims  or would be able to have its
   customers  indemnify  or  insure  the Company against such claims.  The
   Company  currently carries product liability insurance in the amount of
   $3,000,000,  but  there  is  no  assurance  that  such coverage will be
   adequate  in  terms  and  scope  to protect it against material adverse
   effects in the event of a successful product liability claim.

                  Patents.    The  Company  has  obtained patents or filed
   patent applications in the United States and certain other countries in
   three  series  regarding  the  compositions  of  acetylated  mannan
   derivatives,  the  processes by which they are produced and the methods
   of  their  use.   The Company believes that the patents it has obtained
   and  those  it  is seeking constitute valuable assets.  However, patent
   rights  resulting  from  issued  patents  are  not self-enforcing.  The
   Company  must  enforce  the  rights  if  and  when  they are infringed.
   Accordingly,  there  are  no  assurances that any patents issued to the
   Company give significant commercial protection.
<PAGE>
                  Obsolescence.  The pharmaceutical industry has undergone
   rapid and significant change.  The Company expects that this field will
   continue  to  develop  rapidly,  and  the Company's future success will
   depend,  in  large  part,  on  its  ability  to  maintain a competitive
   position.   Rapid technological development may result in the Company's
   products  or  processes  becoming  obsolete  before  marketing of those
   products  or  before  the Company recovers a significant portion of the
   research,  development  and  commercialization  expenses  incurred with
   respect to those products.

                  Dependence  Upon  Key  Personnel.  The Company's success
   depends  in  large  part  upon its ability to attract and retain highly
   qualified   scientific,   manufacturing,   marketing   and   management
   personnel.    The  Company  believes  that  it employs highly qualified
   personnel  in all these areas.  The Company, however, faces competition
   for   such  personnel  from  other  companies,  academic  institutions,
   government  entities  and  other  organizations.  There is no assurance
   that  the  Company  will  be  successful  in  hiring  or  retaining the
   requisite personnel.

                  Antitakeover  Matters.    Certain  provisions  of  the
   Company's  Restated Articles of Incorporation and Bylaws may be deemed
   to have an antitakeover effect and may delay, defer or prevent a tender
   offer  or  takeover  attempt  that  a  shareholder of the Company might
   consider  in  such shareholder s best interest, including attempts that
   might  result  in  the  payment  of a premium over the market price for
   shares  of  Common  Stock.  These provisions include a provision in the
   Company's  Restated Articles of Incorporation authorizing the issuance
   of "blank  check"  preferred  stock by the Board of Directors of the
   Company  without  further  shareholder  approval.    They  also include
   provisions  in  the  Company's Bylaws that divide the directors of the
   Company  into  three  classes that are elected for staggered three-year
   terms  and  that  establish  advance  notice procedures with respect to
   submissions  by shareholders of proposals to be acted on at shareholder
   meetings  and  of  nominations of candidates for election as directors.
   In  addition,  the  Company  has  instituted a shareholder rights plan,
   which  may  have  the  effect  of  discouraging an unsolicited takeover
   proposal.


               DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

                  This  Prospectus  includes  or incorporates by reference
     forward-looking  statements  within the meaning of Section 27A of the
   Securities  Act  of  1933  and  Section  21E  of the Exchange Act.  All
   statements  other  than  statements  of historical fact included in, or
   incorporated  by  reference  in,  this  Prospectus  are forward-looking
   statements,  including without limitation, statements under the caption
   "Risk" Factors.    Forward-looking statements generally include or are
   accompanied  by  words  such  as "anticipate", "believe", "estimate",
   "expect", "intend" or similar words.  Although the Company believes
   that  the expectations reflected in such forward-looking statements are
   reasonable,  it can give no assurance that such expectations will prove
   to  have  been  correct.    Important  factors  that could cause actual
   results  to  differ  materially  from  the  Company's  expectations
   ("Cautionary  Statements")  are  disclosed  under  the  caption  Risk
   Factors  in this Prospectus.  Cautionary Statements include but are not
   limited  to  the possibilities that the Company may be unable to obtain
<PAGE>
   the  funds  needed  to  carry out large scale clinical trials and other
   research  and  development  projects, that the results of the Company's
   clinical  trials  may not be sufficiently positive to warrant continued
   development and marketing of the products tested, that new products may
   not  receive  required approvals by the appropriate government agencies
   or may not meet with adequate customer acceptance, that the Company may
   not  be  able to obtain financing when needed, that the Company may not
   be able to obtain appropriate licensing agreements for products that it
   wishes  to  market  or products that it needs assistance in developing,
   that  demand for the Company's products may not be sufficient to enable
   it to recover the cost of its Costa Rica plant or to absorb all of that
   plant's operating costs, and that the Company's efforts to improve its
   sales  may  not  be sufficient to enable it to fund its operating costs
   from  revenues  and  available  cash  resources.    All forward-looking
   statements  included  or  incorporated by reference in this Prospectus,
   and  all  subsequent  written  and  oral  forward-looking  statements
   attributable  to  the  Company  or  persons  acting  on its behalf, are
   expressly qualified in their entirety by the Cautionary Statements.


                             SELLING SHAREHOLDERS

                  The  Shares  offered  hereby  are shares of Common Stock
   that are issuable upon the conversion of outstanding shares of Series E
   Preferred  Stock  sold  by the Company to the Selling Shareholders in a
   private  placement  in October 1996 (the "Private Placement").  A total
   of  660  shares  of  Series  E Preferred Stock were sold in the Private
   Placement.    On  March 4, 1997, the Company purchased from the Selling
   Shareholders an aggregate of 330 shares of Series E Preferred Stock for
   an  amount  in  cash  equal  to $11,300 per share of Series E Preferred
   Stock, representing an aggregate purchase price of $3,729,000.

                  Subject  to  certain  conditions, each share of Series E
   Preferred  Stock  is  convertible, at the option of the holder thereof,
   into  shares  of  Common  Stock  beginning  on  December  20, 1996.  In
   addition,  subject  to  certain  conditions,  all  shares  of  Series E
   Preferred  Stock  that  remain  outstanding  on  October 21, 1999 shall
   automatically  be  deemed  to have been surrendered for conversion (and
   shall  be  automatically converted) into shares of Common Stock on such
   date.   The conversion price per share of Series E Preferred Stock (the
   "Conversion  Price") is equal to the lower of (x) $25.20 (as adjusted
   for any stock split, reverse stock split or stock dividend with respect
   to  the  Common Stock), and (y) 87% of the average of the daily closing
   bid  prices  of  the  Common  Stock on Nasdaq for the three consecutive
   trading  days  ending on the trading day immediately preceding the date
   of  conversion  of  the  Series  E  Preferred Stock (such average daily
   closing bid price, the  Current Market Price ).  Each share of Series E
   Preferred  Stock  is  convertible  into  the  number of whole shares of
   Common  Stock  determined  by dividing (a) $10,000 (as adjusted for any
   stock  split,  reverse  stock  split,  stock  dividend or similar event
   resulting  in  a  change  in the Series E Preferred Stock) plus, in the
   case  of  the  automatic  conversion of the Series E Preferred Stock on
   October  21,  1999, an amount equal to all dividends accrued but unpaid
   on  such share of Series E Preferred Stock, by (b) the Conversion Price
   in effect on the date of conversion.
<PAGE>
                  The  total number of Shares offered hereby, as set forth
   on  the  cover page of this Prospectus, has been calculated based on an
   assumed  conversion  prior  to  October  21,  1999 of all 330 presently
   outstanding shares of Series E Preferred Stock at a Conversion Price of
   $3.46.    Such Conversion Price was determined by multiplying 87% times
   an  assumed  Current  Market  Price  of the Common Stock of $3.98.  The
   lowest  closing  sales  price  of the Common Stock on Nasdaq during the
   period  January  1,  1996  to  April 11, 1997 was $5.125 per share.  On
   April  11,  1997, the closing sales price of the Common Stock on Nasdaq
   was  $5.125  per  share.    The  actual  number  of  Shares  a  Selling
   Shareholder  acquires  upon  any  conversion  of its Series E Preferred
   Stock  will  depend  on the Current Market Price of the Common Stock on
   the date of conversion.

                  Concurrently  with the closing of the Private Placement,
   the  Company  entered  into  Registration  Rights  Agreements  (the
   "Registration  Rights  Agreements")  with  each  of  the  Selling
   Shareholders.    Pursuant  to  the  Registration Rights Agreements, the
   Company agreed, subject to certain terms and conditions, to prepare and
   file  with  the  Commission  a  registration  statement  or  statements
   covering  the  sale by the Selling Shareholders of the shares of Common
   Stock  received  by  the  Selling Shareholders upon conversion of their
   shares of Series E Preferred Stock.    In    connection    with    the
   Company's  repurchase  of  330  shares of Series E Preferred Stock, the
   Company  agreed  with  the  Selling Shareholders that if the Commission
   does  not  declare  the  registration  statement  covering  the  Shares
   effective  by  May  15,  1997,  the Company will pay the holders of the
   Series E. Preferred Stock an amount in cash equal to 1% of the original
   purchase  price through June 15, 1997 and 2% for each additional 30-day
   period,  prorated  to  the  date  on  which the Commission declares the
   Registration  Statement  effective.  The Company agreed to use its best
   efforts  to keep such registration statement or statements effective at
   all  times  until  the  earliest of (i) October 21, 1998, (ii) the date
   when  the  Selling  Shareholders may sell all the Shares under Rule 144
   promulgated  under  the  Securities Act of 1933, or (iii) the date when
   the  Selling  Shareholders  no  longer own any Shares.  The Company has
   registered  the Shares for sale pursuant to this Prospectus as required
   by the Registration Rights Agreements.  See  Plan of Distribution. 

                  The  following table sets forth certain information with
   respect to the ownership of the Common Stock, as of April 11, 1997, and
   as  adjusted  to reflect the sale of the Shares offered hereby, by each
   of  the Selling Shareholders.  Each Selling Shareholder has sole voting
   and  investment  power  with  respect  to all shares indicated as being
   beneficially owned by such person.
<PAGE>

                               Beneficial        Maximum       Beneficial
                               Ownership of      Number of     Ownership of
                               Common Stock       Shares       Common Stock
                               Before            Being         After the
                               the Offering(1)   Offered(1)    Offering(2) 

                             Number                         Number
                               of                            of     
      Name                   Shares    Percent              Shares  Percent
   ---------------------    -------   --------              ------  -------
   Bernstein Liebhard &
   Lifshitz                 144,508     1.5%      144,508       0        0%

   Bridge Ltd.               93,930      1.0%       93,930      0        0%

   Colophon N.V.             36,127       *         36,127      0        0%

   EuroFactors
   International Inc.        65,028       *         65,028      0        0%
   FTS Worldwide
   Corporation              202,312     2.1%      202,312       0        0%

   Harmen Partners           36,127       *         36,127      0        0%

   Kapok International
   Inc.                      36,127       *         36,127      0        0%

   Ramlu Trading Corp.       86,705       *         86,705      0        0%

   The Tail Wind Fund Ltd.  108,381     1.1%      108,381       0        0%

   Wolfson Equities         144,508     1.5%      144,508       0        0%
                            -------               -------
                  Total     953,753               953,753

   ____________________
   *  Less than 1%.

   (1)      Consists  solely  of  Shares  the  Selling Shareholder has the
            right  to acquire through the conversion of shares of Series E
            Preferred  Stock  held by the Selling Shareholder.  The number
            of  Shares set forth in the table for each Selling Shareholder
            has  been  calculated  based  on an assumed conversion by such
            Selling  Shareholder  prior  to October 21, 1999 of all of its
            Series E Preferred Stock at a Conversion Price of $3.46.  Such
            Conversion  Price  was  determined by multiplying 87% times an
            assumed  Current  Market  Price  of the Common Stock of $3.98.
            The  actual  number  of  Shares a Selling Shareholder acquires
            upon  any  conversion  of  its  Series  E Preferred Stock will
            depend  on the Current Market Price of the Common Stock on the
            date of conversion.

   (2)      Assumes that all Shares being offered are sold.
<PAGE>
            
                             PLAN OF DISTRIBUTION

      The  Shares  may  be  sold  from  time  to  time  by  the  Selling
   Shareholders,  or  by  their  pledgees,  donees  or other successors in
   interest.  Such sales may be made by the Selling Shareholders on Nasdaq
   or  otherwise at prices and on terms related to the then current market
   price  of  the  Common Stock or in negotiated transactions.  The Shares
   may be sold by any one or more of the following methods:


      (a)   a  block  trade  in which the broker or dealer so engaged will
   attempt  to  sell  the  Shares  as agent, but may position and resell a
   portion of a block as principal to facilitate the transaction;

      (b)   purchases  by  a  broker or dealer as principal, and resale by
   such broker or dealer, for its account pursuant to this Prospectus;

      (c)   ordinary  brokerage transactions and transactions in which the
   broker solicits purchasers; and

      (d)   privately negotiated transactions.

      The Selling Shareholders may effect such transactions by selling the
   Shares  to or through brokers or dealers.  Such brokers or dealers will
   receive  compensation  in the form of discounts or commissions from the
   Selling  Shareholders,  and  they may also receive commissions from the
   purchasers  of  the  Shares  for  whom  they  may  act as agents.  Such
   discounts   or  commissions  from  the  Selling  Shareholders  or  such
   purchasers  are  not expected to exceed those customary in the types of
   transactions involved.

      The  Company  has  agreed to pay all reasonable expenses incident to
   registration  of  the  Shares,  other  than  underwriting discounts and
   commissions and other fees and expenses of investment bankers and other
   than brokerage commissions.  It is estimated that the fees and expenses
   payable  by  the  Company  in  connection  with the registration of the
   Shares will be approximately $50,000.  The Company will receive none of
   the proceeds from sales of the Shares.

      In  the  event  the  Shares are offered to the public by the Selling
   Shareholders,  they  may be deemed  underwriters  within the meaning of
   the  Securities  Act  of 1933.  Any broker-dealer selling the Shares as
   agent  for  a  Selling Shareholder and any broker-dealer purchasing and
   reselling  the  Shares  for  its  own  account  may  also  be deemed an
   underwriter. 

   
                                LEGAL MATTERS

      The  legality  of  the Shares offered hereby will be passed upon for
   the  Company  by Thompson & Knight, A Professional Corporation, Dallas,
   Texas.

<PAGE>

                                   EXPERTS

      The consolidated financial statements of the Company incorporated by
   reference   in  this  Prospectus  and  elsewhere  in  the  Registration
   Statement  have been audited by Arthur Andersen LLP, independent public
   accountants,  as  indicated  in  their report with respect thereto, and
   have  been  so incorporated by reference in reliance upon the authority
   of said firm as experts in giving said report.

   
                                   PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS


   Item 14. Other Expenses of Issuance and Distribution.

      The  following  table  sets forth the expenses, other than brokerage
   discounts  and  commissions, expected to be incurred in connection with
   the  offering of the Shares registered hereby.  All amounts, except the
   Securities and Exchange Commission registration fee, are estimated.


      Securities  and Exchange Commission Registration Fee . . .  $4,364

      Accounting Fees and Expenses . . . . . . . . . . . . . . .   9,000

      Legal Fees and Expenses  . . . . . . . . . . . . . . . . .  35,000

      Miscellaneous Expenses . . . . . . . . . . . . . . . . . .   1,636
                                                                 -------
                   Total . . . . . . . . . . . . . . . . . . . . $50,000
                                                                 =======
                            
            Pursuant  to  the  terms  of the registration rights agreement
   filed  as  Exhibit 10.3 to this Registration Statement, under which the
   Selling  Shareholders  have  been  granted  registration  rights  in
   connection  with  the  registration  being effected hereby, the Selling
   Shareholders  will  pay  any underwriting discounts and commissions and
   other  fees  and  expenses  of  investment  bankers  and  any brokerage
   commissions  payable  in  respect  of sales of the Shares.  The Company
   will bear all other reasonable expenses incident to the registration of
   the Shares pursuant to this Registration Statement.
   

   Item 15. Indemnification of Directors and Officers.

            The  Company is a Texas corporation.  Article 1302-7.06 of the
   Texas Miscellaneous Corporation Laws Act authorizes Texas corporations,
   such  as the Company, to eliminate or limit, pursuant to a provision in
   their  articles of incorporation, the liability of directors thereof to
   the  corporation  and its shareholders for certain acts or omissions in
   the  director's capacity as a director, subject to certain limitations.
   Reference is made to Article Fifteen of the Company's Restated Articles
   of Incorporation,  which  are  filed  as  Exhibit  4.1  hereto,  that
   eliminates  the  liability  of  directors  of  the Company for monetary
   damages for certain acts or omissions, subject to certain limitations.
<PAGE>
            Article  2.02-1  of the Texas Business Corporation Act permits
   (and in certain circumstances requires) Texas corporations, such as the
   Company,  to  indemnify  directors  and  officers thereof under certain
   conditions  and  subject  to certain limitations.  Reference is made to
   Article  Nine  of  the Company's Bylaws, which are filed as Exhibit 4.2
   hereto,  that provides for indemnification of directors and officers of
   the Company, subject to certain limitations.


            The  Company  maintains  a  directors  and officers  liability
   insurance  policy  insuring  its directors and officers against certain
   liabilities  and  expenses incurred by them in their capacities as such
   and  insuring  the  Company,  under certain circumstances, in the event
   that indemnification payments are made by the Company to such directors
   and officers.

            Pursuant  to  the  terms  of the registration rights agreement
   filed  as  Exhibit  10.3  to  this  Registration Statement, the Selling
   Shareholders  have  agreed  to indemnify the Company and its directors,
   officers and controlling persons against certain liabilities, including
   liabilities  under  the  Securities  Act of 1933, arising out of untrue
   statements  or omissions in the Registration Statement made in reliance
   upon  and  in  conformity  with information furnished in writing to the
   Company by the Selling Shareholders.

            The   foregoing  summaries  are  necessarily  subject  to  the
   complete  text  of  the  statutes,  Restated Articles of Incorporation,
   Bylaws,  insurance  policy  and  agreement  referred  to  above and are
   qualified in their entirety by reference thereto.


   Item 16. Exhibits.

            The  information  required by this Item 16 is set forth in the
   Index to Exhibits accompanying this Registration Statement.


   Item 17. Undertakings.


            (a)    Rule 415 Offering.

                   The undersigned Registrant hereby undertakes:

                   (1) To  file,  during  any  period  in which offers or
            sales  are  being  made,  a  post-effective  amendment  to the
            Registration Statement:


                       (i)  to  include any prospectus required by Section
                   10(a)(3) of the Securities Act of 1933;
<PAGE>

                      (ii)  to  reflect in the Prospectus any facts or
                   events  arising  after  the  effective  date  of  the
                   Registration   Statement  (or  the  most  recent  post-
                   effective  amendment thereof) which, individually or in
                   the  aggregate,  represent  a fundamental change in the
                   information  set  forth  in the Registration Statement.
                   Notwithstanding the foregoing, any increase or decrease
                   in  volume  of  securities offered (if the total dollar
                   value of securities offered would not exceed that which
                   was  registered) and any deviation from the low or high
                   end  of  the  estimated  maximum  offering range may be
                   reflected  in  the  form  of  prospectus filed with the
                   Commission  pursuant  to  Rule  424(b)  if,  in  the
                   aggregate, the changes in volume and price represent no
                   more  than  a  20%  change  in  the  maximum  aggregate
                   offering  price  set  forth  in  the    Calculation  of
                   Registration  Fee   table in the effective registration
                   statement;

                       (iii)    to  include  any material information with
                   respect  to  the  plan  of  distribution not previously
                   disclosed in the Registration Statement or any material
                   change  to  such  information  in  the  Registration
                   Statement;


            provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do
            not  apply  if  the  information  required to be included in a
            post-effective  amendment  by those paragraphs is contained in
            periodic  reports filed with or furnished to the Commission by
            the  Registrant pursuant to Section 13 or Section 15(d) of the
            Securities  Exchange  Act  of  1934  that  are incorporated by
            reference in the Registration Statement.

                   (2) That, for the purpose of determining any liability
            under  the  Securities  Act  of 1933, each such post-effective
            amendment  shall  be deemed to be a new registration statement
            relating  to  the securities offered therein, and the offering
            of  such  securities  at  that  time shall be deemed to be the
            initial bona fide offering thereof.

                   (3) To  remove  from  registration by means of a post-
            effective  amendment  any  of  the securities being registered
            which remain unsold at the termination of the offering.

            (b)    Filings Incorporating Subsequent Exchange Act Documents
   by Reference.

            T h e  undersigned  Registrant  hereby  undertakes  that,  for
   purposes of determining any liability under the Securities Act of 1933,
   each filing of the Registrant's Annual Report pursuant to Section 13(a)
   or  Section  15(d)  of  the  Securities  Exchange  Act  of 1934 that is
   incorporated by reference in the Registration Statement shall be deemed
   to  be  a new Registration Statement relating to the securities offered
   therein,  and  the  offering  of  such securities at that time shall be
   deemed to be the initial bona fide offering thereof.
<PAGE>

            (h)    Acceleration of Effectiveness.

            Insofar  as  indemnification for liabilities arising under the
   Securities  Act  of  1933  may  be permitted to directors, officers and
   controlling  persons  of  the  Registrant  pursuant  to  the  foregoing
   provisions,  or otherwise, the Registrant has been advised that, in the
   opinion of the Securities and Exchange Commission, such indemnification
   is  against  public  policy  as expressed in the Act and is, therefore,
   unenforceable.    In the event that a claim for indemnification against
   such  liabilities (other than the payment by the Registrant of expenses
   incurred  or  paid  by a director, officer or controlling person of the
   Registrant in the successful defense of any action, suit or proceeding)
   is  asserted  by  such  director,  officer  or  controlling  person  in
   connection  with  the securities being registered, the Registrant will,
   unless  in  the  opinion  of its counsel the matter has been settled by
   controlling  precedent,  submit  to a court of appropriate jurisdiction
   the  question  whether  such  indemnification  by  it is against public
   policy  as  expressed  in  the  Act  and  will be governed by the final
   adjudication of such issue.

   

                                  SIGNATURES

            Pursuant  to  the  requirements of the Securities Act of 1933,
   the Registrant certifies that it has reasonable grounds to believe that
   it  meets  all  of the requirements for filing on Form S-3 and has duly
   caused this amendment to the Registration Statement to be signed on its
   behalf  by  the  undersigned, thereunto duly authorized, in the City of
   Irving, State of Texas, on the 16 day of April, 1997.


                                            Carrington Laboratories, Inc.
                                                    (Registrant)


                                            By:/s/ SHERI L. PANTERMUEHL     
                                            Sheri L. Pantermuehl
                                            Chief Financial Officer and 
                                            Treasurer


            Pursuant  to  the  requirements of the Securities Act of 1933,
   this  amendment  to  the  Registration Statement has been signed by the
   following persons in the capacities and on the date indicated.

       Signature                   Title                         Date

   _______*_________         *Chairman of the Board         April 16, 1997
     George DeMott


                             *Chief Executive Officer,
   __________*_____________   President and                  April 16, 1997
   Carlton E. Turner, Ph.D.   Director (Principal Executive
                              Officer)
<PAGE>


                             *Chief Financial Officer and
  _________*___________       Treasurer                       April 16, 1997
  Sheri L. Pantermuehl        (Principal Financial Officer
                              and Accounting Officer)

                           

 ______*________             *Director                        April 16, 1997
 Selvi Vescovi


                          
 ________*_________          *Director                        April 16, 1997
 Thomas J. Marquez



 _________*_____________     *Director                        April 16, 1997
 Robert A. Fildes, Ph.D.



 ________*_________          *Director                        April 16, 1997
 James T. O Brien




 ________*________         *Director                           April 16, 1997
 R. Dale Bowerman




   * /s/ CARLTON E. TURNER    
     Carlton E. Turner, Ph.D.
     Attorney-in-Fact
<PAGE>

     
                              INDEX TO EXHIBITS

                                                                    
                                                                    Sequentially
                                                                      Numbered 
                                                                        Page 
                                                                              
        4.1 --- Restated  Articles  of  Incorporation of the Company
                (incorporated  herein by reference to Exhibit 3.1 to
                the Company's 1988 Annual Report on Form 10-K).

        4.2 --- Bylaws  of the Company, as amended through April 27,
                1995  (incorporated  herein  by reference to Exhibit
                3.5 to the Company's 1995 Annual Report on Form 10-K).

        4.3 --- Statement  of  Resolution  Establishing  Series  E
                Convertible   Preferred   Stock   of   the   Company
                (incorporated  herein by reference to Exhibit 3.1 to
                the  Company's Report on Form 8-K dated November 13,
                1996).

        4.4 --- Rights  Agreement  dated  as  of September 19, 1991,
                between  the Company and Ameritrust Company National
                Association  (incorporated  herein  by  reference to
                Exhibit  1 to the Company's Report on Form 8-K dated
                September 19, 1991).

        5.1*--- Opinion  of  Thompson  &  Knight,  A  Professional         
                Corporation.                                         

       10.1 --- Stock  Purchase  Agreement  between  the Company and
                each  of  the  purchasers of shares of the Company's
                Series  E  Convertible Preferred Stock (incorporated
                herein by reference to Exhibit 10.4 to the Company's
                Report on Form 8-K dated November 13, 1996).

       10.2 --- Amendment  to Stock Purchase Agreement dated October
                15,  1996  between  the  Company  and  each  of  the
                purchasers  of  shares  of  the  Company's Series E
                Convertible  Preferred Stock (incorporated herein by
                reference to Exhibit 10.5 to the Company's Report on
                Form 8-K dated November 13, 1996).

       10.3 --- Registration  Rights  Agreement  between the Company
                and   each  of  the  purchasers  of  shares  of  the
                Company's  Series  E  Convertible  Preferred  Stock
                (incorporated herein by reference to Exhibit 10.6 to
                the  Company's Report on Form 8-K dated November 13,
                1996).

       10.4*--- Offer  and  Agreement  of  Sale  and  Purchase  of
                Convertible Preferred Series E Stock between holders
                of  the  Company's  Series  E Convertible Preferred
                Stock  and  the  Company,  dated  February  26, 1997
                (incorporated  herein  by reference to Exhibit 10.69
                to the Company's 1996 Report on Form 10-K).

       23.1*--- Consent of Arthur Andersen LLP.                              

       23.2 --- Consent  of  Thompson  &  Knight,  A  Professional         
                Corporation (included in Exhibit 5.1).

       24.1 --- Power  of  Attorney  (included  in  Part  II  of the         
                Registration Statement).
   
   ______________________

   *        Filed herewith.
            Previously filed.

  



                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
                  ---------------------------------------------

         As independent public accountants, we hereby consent to the
   incorporation by reference in this Registration Statement of our report
   dated February 7, 1997 (except with respect to the matter discussed in
   Note Eighteen, as to which the date is March 4, 1997) included in the
   Carrington Laboratories, Inc. Form 10-K for the year ended December 31,
   1996 and to all references to our firm included in this Registration
   Statement.



   Arthur Anderson LLP
   Dallas, Texas
   April 15, 1997
   <PAGE>



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission