the putative calmodulin antagonists , chlorpromazine , promethazine , thioridazine ( phenothiazines ) and w-7 ( a naphthalene sulphonamide ) all inhibited histamine release in the presence of divalent cations in both untreated cells and in rpmc depleted of their intracellular calcium .
C0039943
thioridazine
C0031436
phenothiazines