1. Comparison of the pharmacokinetics and electrocardiographic effects of sublingual and intravenous verapamil;Berk;Pharmacotherapy,1992
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3. Verapamil disposition and effect on PQ-intervals after buccal, oral, and intravenous administration;Asthana;Arzneimittelforschung,1984
4. PQ-intervals and serum concentrations as indices of verapamil absorption following sublingual, buccal, and per oral administration in man;Woodcock;Methods Find Exp Clin Pharmacol,1983
5. Drugs with first-pass elimination. Verapamil and dihydroergotamine alkaloids;Rietbrock;Internist (Berl),1982