Word: tetrahydrocannabinols
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...purified and concentrated active ingredient of marijuana, tetrahydrocannabinol (THC), can cause the same sort of hallucinogenic symptoms as LSD. Pro-marijuana physicians point out that THC is in such limited experimental production and is so difficult to synthesize, that few if any marijuana users are likely to get their hands on it. The A.M.A. feels that any LSD-like drug, in any concentration, should not be available to the public...
Extreme Dosage. Last week, at a Chicago conference on psychedelic drugs, Dr. Donald R. Jasinski of the National Institute of Mental Health reported that he had produced LSD-like symptoms with tetrahydrocannabinol (THC), one of the purified active ingredients in cannabis. The test patient, he said, developed visual hallucinations, distortions of sensory perception, loss of insight, muscle rigidity and muteness. "He later related that he saw himself shrivel down to a doll, and witnessed his own funeral," said Dr. Jasinski. To Dr. Harris Isbell of the Federal Addiction Research Center in Lexington, Ky., Dr. Jasinski's experiments "definitely indicated...