JOHN W. KNARR, M.D.
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To the editor: I wish to report a case that strongly suggests propranolol caused impotence.
The patient was a 52-year-old man who first was seen because he was told he had hypertension. The first blood pressure measurement, by the nurse, was 180/120 mm Hg and about 30 min later, it was 180/120 mm Hg in my examination. The patient had been feeling well. He had no evidence of vascular disease; the only positive finding was an abnormal glucose tolerance test: fasting blood sugar, 75 mg/dl; ½ h, 232; 1 h, 163; 2 h, 150; 3 h, 95.
He was started
KNARR JW. Impotence from Propranolol?. Ann Intern Med. 1976;85:259. doi: 10.7326/0003-4819-85-2-259_2
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Published: Ann Intern Med. 1976;85(2):259.
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