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Clin Cardiol. 1987 Oct;10(10):573-7.

Comparison of nitroglycerin-TTS and long-acting nitroglycerin tablets in the treatment of angina pectoris: a double-blind controlled study.

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Department of Medicine I, Sahlgren's Hospital, Gothenburg, Sweden.


A cohort of 99 patients with severe, stable angina pectoris participated in a 26-week double-blind, between-patient trial of a transdermal therapeutic system (TTS) Nitroglycerin-TTS 5 mg/24 h and long-acting nitroglycerin tablets, 10.4 mg daily. The variables registered included daily sublingual nitroglycerin requirement, daily anginal attack rate, exercise test performance with ECG recordings, and a subjective patient evaluation on a visual analogue scale. There were no significant differences in the efficacy of the treatment between the two groups. Nor could we find any difference in the efficacy between the initial single-blind placebo treatment and the active nitroglycerin treatments.

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