Inhibition of cisplatin‐induced vomiting by selective 5‐hydroxytryptamine M‐receptor antagonism

MDL 72222, the selective 5‐hydroxytryptamine (5‐HT) M‐receptor antagonist, prevented or reduced cisplatin‐induced emesis in ferrets. It is suggested that cisplatin‐induced, and possibly other cytotoxic drug‐induced vomiting may involve a 5‐HT M‐receptor mechanism.