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  • Title: [Testing the pharmacological activity of some synthetic cannabinoids in mice (author's transl)].
    Author: Ganz AJ, Waser PG.
    Journal: Arzneimittelforschung; 1980; 30(3):471-7. PubMed ID: 7387758.
    Abstract:
    A series of synthetic cannabinoids were tested in mice for analgesic, anticonvulsant, sedative and reserpine antagonistic properties as well as for influence on body temperature and on motor coordination and compared with the natural delta 9-tetrahydrocannabinol (delta 9-THC), delta 8-tetrahydrocannabinol (delta 8-THC) and cannabidiol (CBD). All cannabinoids were injected s.c. or i.p. in mice as solutions in olive oil. The synthetic cannabinoids, with the exception of the lipophilic ones, were less active than the natural delta 9-THC. 1',1'-dimethyl-delta 8-tetrahydrocannabinol (DM-delta 8-THC) has an analgesic ED 50 of 16 mg/kg s.c. (writhing test) and is three times more active than delta 9-THC, but also eight times less active than morphine. The lipophilic derivatives of delta 8-THC prolonged pentobarbitone narcosis and diminished locomotor activity in mice. Anticonvulsant activities could never be detected; all cannabinoids slightly diminished body temperature and antagonized weakly the hypothermia induced by reserpine. The trained capacity of remaining on the rotating rod was severely shortened for a long time after application of all cannabinoids but mainly by the lipophilic ones. The influence of derivation on the activity of delta 9-THC is discussed.
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