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“CBG, THCV, CBD and CBDV, but not CBC, at concentration ranging from 10−8 M to 10−4 M, decreased (with similar potency), the contractions induced by acetylcholine without significantly modifying the contractions induced by electrical stimulation.”
Natural product communications • 2015 | View Paper
“ CBD reversibly inhibited ACh (100 μM)-induced currents with an IC50 value of 11.3 µM. Other phytocannabinoids such as cannabinol and Δ(9)-tetrahydrocannabinol did not affect ACh-induced currents.”
“ CBD enhanced the maximum vasorelaxation to acetylcholine (ACh) in femoral arteries from ZDF lean rats (P < 0.01) and especially ZDF rats (P < 0.0001).”
The Journal of Pharmacology and Experimental Therapeutics • 2014 | View Paper
“Both … of acetylcholine ; on this preparation CBD was more active than THC, … in acetylcholine output was produced by a concentration of CBD at 4 x 10-7M compared with THC at 1-75 x 10-6M, …% reduction by CBD at 1 27x 10-6M, or THCat 159x 10-5M.”
“In contrast to THC, CBD was without effect … M. In some experiments both THC and CBD … acetylcholine , both compounds being effective at a concentration of 3*18 x 10-7 M. These observations … THC was either without effect, or potentiated the action of acetylcholine on the guinea-pig ileum.”