Table 2.

Mean apparent K_B-values of THCV for antagonism of drug-induced inhibition of electrically evoked contractions of the mouse isolated vas deferens

THCV (nM)	Twitch inhibitor	Mean apparent KB of THCV (nM)	95% confidence limits (nM)	n
10–1000	R-(+)-WIN55212	1.5	1.1 and 2.3	6–9
100	Anandamide	1.2	0.2 and 6.2	7
100	Methanandamide	4.6	1.5 and 11.6	12
100	CP55940	10.3	3.8 and 31.7	14
1000	THC	96.7	15.4 and 978	10
100	Clonidine	>100	—	8
100	Capsaicin	>100	—	8
100	7-OH-CBD-DMH	>100	—	8

7-OH-CBD-DMH, (−)-7-hydroxy-cannabidiol-dimethylheptyl. Mean apparent K_B-values were calculated by Schild analysis using data obtained with the concentrations of THCV shown (see also Figures 6 and 7).