<prompt> Nifedipine and beta-blocker are given together -To decrease pedal edema due to nifedipineTo overcome increased sympathetic activity of nifedipineAnti CHF action of propranololAntiarrhythmic effect of nifedipine  <response>: Ans. is b i.e., To overcome increased sympathetic activity of Nifedipine b-Blocker is given along with Nifedipine because a Reflex tachycardia Increased sympathetic activity caused due to Nifedipine, is prevented by b-blocker. b b-blockers cause dilatation of coronary aeries by unopposed a-mediated vasoconstriction. Nifedipine causes coronary vasodilatation and opposes the spasm caused by b-blockers. The tendency of b-blocker to cause ventricular dilatation is counteracted by Nifedipine. 