diltiazem and verapamil.
Nondihydropyridines have significant affect on heart rate and cardiac contractility where as the dihydropyridines such as nifedipine and amlodipine primarily have vasodilatory action and minimal effect on cardiac inotropy or chronotropy.
Source
Shanon: Haddad and Winchester's Clinical Management of Poisoning and Drug Overdose, 4th ed.
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