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Increase in the power of human memory in normal man through the use of drugs


Nootropyl (Piracetam) a drug reported to facilitate learning in animals was tested for its effect on man by administering it to normal volunteers. The subjects were given 3×4 capsules at 400 mg per day, in a double blind study. Each subject learned series of words presented as stimuli upon a memory drum. No effects were observed after 7 days but after 14 days verbal learning had significantly increased.

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Correspondence to Stuart J. Dimond.

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Visiting fellow from Rijksuniversitier te Leiden supported by the European programme for training in brain and behaviour research.

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Dimond, S.J., Brouwers, E.Y.M. Increase in the power of human memory in normal man through the use of drugs. Psychopharmacology 49, 307–309 (1976).

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Key words

  • Learning
  • Memory
  • Normal human
  • Nootropyl
  • Piracetam