Absence Of Interaction Between Delta9-Tetrahydrocannabinol (Delta-THC)

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In this report we give the results of some experiments on the effects of the hashish constituents delta9-tetrahydrocannabinol (THC) and cannabidiol (CBD) on mice. THC produced a dose dependent depression of aggression in isolated mice and a dose dependent depression of body temperature in group caged mice. The drug did not alter motor co-ordination. CBD showed a small, not significant influence on aggressiveness, and no in fluence on body temoerature and muscle control. The dame experiments were carried out with combinations of THC and CBD in several dosages. In these experiments no interaction between both compounds was seen. This means that there can only be an additive action and not potentiation in the pharmacological sense. It also means that the in vitro inhibition by CBD of the drug metabolizing enzymes, responsible for biotransformation of THC. is not strong enough to result in changed effects of THC in the living animal.

Source: Absence of interaction between delta9-te... [Psychopharmacologia. 1975] - PubMed - NCBI
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