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NEOTROFIN Reported to Stimulate Nerve Regeneration

    IRVINE, Calif.--(BUSINESS WIRE)-- May 21, 1998--NeoTherapeutics,  Inc.
(Nasdaq: NEOT; NEOTW) announced today that researchers from  North Carolina
and Canada reported that the Company's lead product  candidate, AIT-082
(NEOTROFIN(tm)), has been shown to stimulate nerve regeneration in tissue
culture and in animals.

    At the 6th International Symposium on Adenosine and Adenine  Nucleotides,
held in Ferrara, Italy, Dr.  Bernhard H.J.  Juurlink of  the Department of
Anatomy and Cell Biology at the University of  Saskatchewan, Saskatoon,
Saskatchewan, Canada, reported that  treatment of hippocampal neurons with
AIT-082 caused nerve outgrowth  and enhanced branching of the nerve processes.
Hippocampal neurons  have been reported to be involved in memory function.

    "Glutamate excitotoxicity is implicated in a number of  neurodegenerative
diseases,"  Dr.  Juurlink stated.  "AIT-082 is  potentially therapeutic in a
number of neurodegenerative disorders.   We have demonstrated in hippocampal
neurons grown in culture that  AIT-082 not only promotes neurite formation in
developing hippocampal neurons, but it prevents much of the neurite
degeneration following  exposure to excessive amounts of the neurotransmitter
glutamate."

    Dr.  Julio J.  Ramirez, the R.  Stuart Dickson Professor of  Psychology,
Davidson College, Davidson, North Carolina, demonstrated  in animals that
after destruction of a discreet area of the brain  involved in memory,
treatment with AIT-082 caused re-growth of  neurons into the damaged area.
These effects were seen after only  four days of treatment with AIT-082.

    "Since the reorganization of brain circuitry has been shown to  contribute
to recovery of memory function after injury or  degeneration in areas crucial
to learning and memory,"  Dr.  Ramirez  stated, "the possibility that AIT-082
might enhance this  reorganization opens up marvelous opportunities to promote
recovery  of function in injured and diseased brains."

    NeoTherapeutics is engaged in the discovery and development of  drugs that
act on the central nervous system to repair nerve cells  and treat
neurodegenerative diseases such as Alzheimer's disease,  spinal cord injury,
Parkinson's disease and stroke, as well as other  neurological conditions such
as migraine.  NeoTherapeutics' products  are orally administered and based
upon patented technologies.   AIT-082 (NEOTROFIN(tm)) is currently in human
clinical trials for the treatment of Alzheimer's disease.  For additional
company  information, visit the NeoTherapeutics website at
www.neotherapeutics.com.

    This press release contains forward-looking statements regarding  future
events and the future performance of NeoTherapeutics that  involve risks and
uncertainties that could cause actual results to  differ materially.  These
risks include, but are not limited to, the  biological activity, side effect
profile and efficacy of AIT-082, the early stage of product development, the
potential need for additional funding, the initiation and completion of
clinical trials and  dependence on third parties for clinical testing,
manufacturing and  marketing.  These risks are described in further detail in
the  Company's annual and quarterly reports filed with the Securities and
Exchange Commission.

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From: Gregfmason <[log in to unmask]>
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To: [log in to unmask]
Subject: PD Stuff
Date: Wed, 27 May 1998 02:22:59 EDT
Organization: AOL (http://www.aol.com)
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Subj:   NEOTROFIN Reported to Stimulate Nerve Regeneration
Date:   98-05-21 10:09:30 EDT
From:   AOL News
BCC:    Gregfmason

NEOTROFIN Reported to Stimulate Nerve Regeneration

    IRVINE, Calif.--(BUSINESS WIRE)-- May 21, 1998--NeoTherapeutics,  Inc.
(Nasdaq: NEOT; NEOTW) announced today that researchers from  North Carolina
and Canada reported that the Company's lead product  candidate, AIT-082
(NEOTROFIN(tm)), has been shown to stimulate nerve regeneration in tissue
culture and in animals.

    At the 6th International Symposium on Adenosine and Adenine  Nucleotides,
held in Ferrara, Italy, Dr.  Bernhard H.J.  Juurlink of  the Department of
Anatomy and Cell Biology at the University of  Saskatchewan, Saskatoon,
Saskatchewan, Canada, reported that  treatment of hippocampal neurons with
AIT-082 caused nerve outgrowth  and enhanced branching of the nerve processes.
Hippocampal neurons  have been reported to be involved in memory function.

    "Glutamate excitotoxicity is implicated in a number of  neurodegenerative
diseases,"  Dr.  Juurlink stated.  "AIT-082 is  potentially therapeutic in a
number of neurodegenerative disorders.   We have demonstrated in hippocampal
neurons grown in culture that  AIT-082 not only promotes neurite formation in
developing hippocampal neurons, but it prevents much of the neurite
degeneration following  exposure to excessive amounts of the neurotransmitter
glutamate."

    Dr.  Julio J.  Ramirez, the R.  Stuart Dickson Professor of  Psychology,
Davidson College, Davidson, North Carolina, demonstrated  in animals that
after destruction of a discreet area of the brain  involved in memory,
treatment with AIT-082 caused re-growth of  neurons into the damaged area.
These effects were seen after only  four days of treatment with AIT-082.

    "Since the reorganization of brain circuitry has been shown to  contribute
to recovery of memory function after injury or  degeneration in areas crucial
to learning and memory,"  Dr.  Ramirez  stated, "the possibility that AIT-082
might enhance this  reorganization opens up marvelous opportunities to promote
recovery  of function in injured and diseased brains."

    NeoTherapeutics is engaged in the discovery and development of  drugs that
act on the central nervous system to repair nerve cells  and treat
neurodegenerative diseases such as Alzheimer's disease,  spinal cord injury,
Parkinson's disease and stroke, as well as other  neurological conditions such
as migraine.  NeoTherapeutics' products  are orally administered and based
upon patented technologies.   AIT-082 (NEOTROFIN(tm)) is currently in human
clinical trials for the treatment of Alzheimer's disease.  For additional
company  information, visit the NeoTherapeutics website at
www.neotherapeutics.com.

    This press release contains forward-looking statements regarding  future
events and the future performance of NeoTherapeutics that  involve risks and
uncertainties that could cause actual results to  differ materially.  These
risks include, but are not limited to, the  biological activity, side effect
profile and efficacy of AIT-082, the early stage of product development, the
potential need for additional funding, the initiation and completion of
clinical trials and  dependence on third parties for clinical testing,
manufacturing and  marketing.  These risks are described in further detail in
the  Company's annual and quarterly reports filed with the Securities and
Exchange Commission.

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