BLSI's current research collaborations
include Harvard Medical School, Children's Hospital of Boston and the
University of Massachusetts-Worcester.

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(Eastern Time) on February 4, 2005.

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Business Editors/Medical Editors

BOSTON----Boston Life Sciences, Inc.

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(NASDAQ: BLSI) announced that it has effected a one-for-five reverse
stock split effective at 5:00 p.
For more information about the community forums, contact Gary Spicer at
510-567-8122.

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The Company's research and pre-clinical CNS programs
include O-1369 for the treatment of Parkinson's disease and Inosine
for the treatment of stroke. Forward-looking
statements include statements regarding Boston Life Sciences'
expectations , beliefs, intentions or strategies regarding the future
and can be identified by forward-looking words such as "believe,"
"estimate," "intend," "should" and "will" or similar words.

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Stockholders also approved an amendment to the Company's
Certificate of Designations, Rights and Preferences of Series E
Cumulative Convertible Preferred Stock.

Statements in this press release regarding management's future
expectations, beliefs, goals, plans or prospects constitute
forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995.

Alameda County Invites Public to Learn About and Share Ideas on the Mental Health Services Act Prop. 63

adversely privacy

All other trade names, trademarks, or service
marks are property of their respective owners and are not the property
of Boston Life Sciences, Inc.

attention carefully

The
Company undertakes no obligation to update or revise any
forward-looking statements, whether as a result of new information,
future events or otherwise.

Sites in this category serve the support needs of people living with ADD or ADHD.

attention purposes

63
(MHSA) Work Group, a "Stakeholder Group" -- representing families, consumers,
mental health professionals and providers -- will be organized in coming weeks
to further help the county plan for Prop. 63 implementation .
The Act requires counties to spend their share of this fiscal year's
estimated $275 million in MHSA funds on education and training of mental
health workers, investment in capital projects and technology, and local
planning.

These groups, communities, or meeting places provide an opportunity for people with a common experience (such as a condition or disease, or a care-giving role) to share their concerns, and to seek and offer information and advice.

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(BLSI) is engaged in the research and
clinical development of novel diagnostic and therapeutic products for
central nervous system (CNS) disorders.

Our logo, trademarks, and service marks are the property of Boston
Life Sciences , Inc.

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ALTROPANE(R), the company's
lead program, is in Phase III for the diagnosis of Parkinson's disease
and Phase II for the diagnosis of Attention Deficit Hyperactivity
Disorder (ADHD). The Company's actual results
could differ materially from those stated or implied in
forward-looking statements due to a number of factors, including those
factors contained in the Company's Annual Report on 10-K filed with
the Securities and Exchange Commission under the section "Risk
Factors ," as well as other documents that may be filed by Boston Life
Sciences from time to time with the Securities and Exchange
Commission.

consult changes

Boston Life Sciences, Inc.

According to Spicer , it is not yet known how much Alameda County will
receive annually for its share of MHSA funds, generated by the voter-approved
1 percent additional income tax on persons making over $1 million a year.

Please consult your doctor or other health care provider before making any lifestyle changes that may adversely affect your condition.

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In connection with the reverse
split, the number of shares of common stock have been adjusted, on a
one-for-five basis, from 34,471,932 to approximately 6,894,386. Community Forums to be Held in Oakland, Castro Valley, San Leandro, Fremont
and Livermore

OAKLAND, Calif.

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Boston Life Sciences Completes 1-for-5 Reverse Stock Split

Stockholder authorization permitting the Board of Directors to effect
the reverse stock split was obtained at a special meeting of
stockholders held on February 4, 2005.

Read each site's PRIVACY POLICY carefully, before providing personal information.

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The Amendment provides for
mandatory conversion of all outstanding shares of Series E preferred
stock into common stock upon the election of the holders of 75% or
more of the outstanding Series E preferred stock.m.

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Boston Life Sciences stock will trade under the ticker symbol
BLSID for 20 trading days beginning February 7, 2005.,
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Sign-in for each meeting is at 6:30 p. Beginning with fiscal year 2005 - 2006 , funding may be used for
prevention and early intervention programs and other innovative approaches to
caring for children and adults with severe mental illness.

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According to Gary Spicer, project manager for Alameda County's Prop.

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m.3 shares of Series E Preferred Stock presently
outstanding. Following a brief presentation on the MHSA, those attending will
participate in small discussion groups focused on county mental health issues
and opportunities.

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purposes attention

On March 7,
2005, the ticker symbol will revert to BLSI. As a result of such risks, the Company's actual results
may differ materially from the results discussed in or implied by the
forward-looking statements contained herein.

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The Company has
received the requisite vote of the outstanding Series E preferred
stock and expects to issue approximately 900,674 shares of common
stock, on a post-reverse split basis, in connection with the
conversion of the 561.