Inhibition of (H+ + K+)-ATPase and H+ accumulation in hog gastric membranes by trifluoperazine, verapamil and 8-(N,N-diethylamino)octyl-3,4,5-trimethoxybenzoate.


The mechanism of gastric antisecretory action for trifluoperazine, verapamil and 8-(N,N-diethylamino)octyl-3,4,5-trimethoxybenzoate (TMB-8) has been studied utilizing isolated hog gastric membranes enriched with (H+ + K+)-ATPase. The drugs inhibited the gastric ATPase due to their apparent competition with K+ for the luminal high-affinity K+-site of the… (More)


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