“3 The inhibitory effect of BSE on acetylcholine‐induced contractions was reduced by the L‐type Ca2+ channel blockers verapamil and nifedipine , but not by the sarcoplasmic reticulum Ca2+‐ATPase inhibitor cyclopiazonic acid, by the phosphodiesterase type IV inhibitor rolipram or by the lipoxygenase inhibitor zileuton.”