<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM 10K
12/31/99 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FORM 10K
</LEGEND>
<CIK> 0000874384
<NAME> CAMBRIDGE NEUROSCIENCE INC.
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<CURRENCY> U.S. DOLLARS

                             
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