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We have assessed the effects in normal control volunteers of 2,5-dimethoxy-4-methyl-amphetamine, the chemical present in the hallucinogenic drug STP, in two independent trials. In low doses, this compound produces a mild euphoria. Doses greater than 3 milligrams may cause pronounced hallucinogenic effects lasting about 8 hours and similar to those produced by hallucinogenic doses of lysergic acid diethylamide, mescaline, and psilocybin. 2,5-Dimethoxy-4-methyl-amphetamine, which is chemically related to mescaline and amphetamine, is about 100 times more potent as a hallucinogen than mescaline and only one-thirtieth as potent as lysergic acid diethylamide. Its psychological effects are not accentuated by chlorpromazine.
S H Snyder, and
L Faillace, and
L Hollister
March 1968,
Science (New York, N.Y.),
S H Snyder, and
L Faillace, and
L Hollister
January 1978,
Communications in psychopharmacology,
S H Snyder, and
L Faillace, and
L Hollister
February 1970,
The Journal of nervous and mental disease,
S H Snyder, and
L Faillace, and
L Hollister
November 1971,
Journal of medicinal chemistry,
S H Snyder, and
L Faillace, and
L Hollister
March 1970,
Biochemical pharmacology,
S H Snyder, and
L Faillace, and
L Hollister
February 2024,
Drug testing and analysis,
S H Snyder, and
L Faillace, and
L Hollister
January 1972,
Therapie,
S H Snyder, and
L Faillace, and
L Hollister
December 1973,
Canadian journal of physiology and pharmacology,
S H Snyder, and
L Faillace, and
L Hollister
February 1974,
Journal of medicinal chemistry,
S H Snyder, and
L Faillace, and
L Hollister
January 1973,
Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences,
