<prompt> Maximum tachycardia is seen with-NifedipineVerapamilPropanololAmlodipine  <response>: Ans. is a i.e., Nifedipine Cardiac effectsVerapamilNifedipineDiltiazamo Heart rateo AV conductiono Contractilityo Output-,-,-,-,-,Note:o Verapamil and to a lesser extent diltiazem delay the recovery of Ca channel in heart - Cardiodepressant action heart rate, conduction, contractility.o Nifedipine DHPs does not delay the recovery of Ca channel - No cardiodepressant action,o Instead, nifedipine causes reflex sympathetic stimulation - Tachycardia and increased contractility. 