AIM: To clarify the difference in inhibitory effects of bepridil (Bep) and verapamil (Ver) on aorta, renal artery and myocardium. METHODS: Compare the inhibitory effects of Bep and Ver on phenylephrine (Phe)-and high K~+-evoked contractions of rat aorta and renal artery, and AIM: To clarify the difference in inhibitory effects of bepridil (Bep) and verapamil (Ver) on aorta, renal artery and myocardium. METHODS: Compare the inhibitory effects of Bep and Ver on phenylephrine (Phe) -and high K ~ + -evoked contractions of rat aorta and renal artery, and