Opie L H, White D, Lee J, Lubbe W F
Br J Clin Pharmacol. 1982 Jun;13(1 Suppl):115S-122S. doi: 10.1111/j.1365-2125.1982.tb01899.x.
1 Patients with combined hypertension and angina pectoris may represent a therapeutic dilemma, with the angina being refractory to conventional beta-blockade. 2 The added benefit of peripheral vasodilation in control of blood pressure is documented in the case of nifedipine. 3 Improved blood pressure control by added nifedipine may not be accompanied by decreased severity of angina pectoris, emphasizing the complex causation of the angina in such patients. 4 The clinically proven added alpha-blocking activity of labetalol distinguishes labetalol from other beta-blockers. However, the suggested benefits of the added alpha-activity in patients with hypertension and angina remain to be proven by further trials in patients.