thirty patients with chronic stable angina pectoris were randomized in a double-blind prospective placebo-controlled crossover trial to assess the efficacy of nifedipine ( 30 to 60 mg/day orally ) in controlling symptoms and objective signs of myocardial ischemia using a symptom-limited treadmill exercise test .
C0340288
chronic stable angina
C0028066
nifedipine