DAVID AKMAN, M.D.
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To the editor: I read with interest Dr. Knarr's comment (1) on impotence associated with the use of propranolol. His description of Dyazide® as triamterene is incorrect. Dyazide is a brand name of a compound containing 50 mg of triamterene and 25 mg of hydrochlorothiazide.
It is difficult to understand why Dr. Knarr would choose a combination drug such as Dyazide to begin treatment of his hypertensive patient. His error shows one of the pitfalls of using such drugs; namely, the difficulty the physician has in remembering the ingredients of the combination compound.
AKMAN D. Dyazide® Composition. Ann Intern Med. ;85:827. doi: 10.7326/0003-4819-85-6-827_1
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Published: Ann Intern Med. 1976;85(6):827.
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