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  • Title: Randomized double-blind comparison of gallopamil and propranolol in stable angina pectoris.
    Author: Khurmi NS, O'Hara MJ, Bowles MJ, Subramanian VB, Raftery EB.
    Journal: Am J Cardiol; 1984 Mar 01; 53(6):684-8. PubMed ID: 6367415.
    Abstract:
    A new calcium ion antagonist, gallopamil, 150 mg/day, was compared with propranolol, 240 mg/day, in 20 patients with stable chronic angina. The patients were studied in a randomized, placebo-controlled, double-blind, crossover trial. Multistage treadmill exercise with computer-assisted electrocardiographic analysis was performed after 2 weeks of placebo therapy and at the end of each 4-week active treatment period. The mean (+/- standard error of the mean) exercise time to development of angina was 5.4 +/- 0.3 minutes with placebo; this increased to 9.4 +/- 0.7 minutes with propranolol (p less than 0.001) and 10.1 +/- 0.7 minutes with gallopamil (p less than 0.001 vs placebo; difference not significant vs propranolol). Both drugs significantly prolonged the time to development of 1 mm of ST depression. Five patients became free of angina during treadmill testing with gallopamil therapy and 2 with propranolol. Both drugs decreased the heart rate at rest; propranolol also decreased the maximal exercise heart rate, which was slightly increased with gallopamil. With the exception of 1 patient in whom raised liver enzymes developed, gallopamil was well tolerated. Thus, gallopamil is an effective antianginal agent that has few of the unwanted effects associated with other calcium channel-blocking drugs.
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