JOACHIM BOEHLER, M.D.
To the editor: Sawin and colleagues (1) conclude in their recent article, "In the meantime [until the thyroxine content is known to be as stated], a reasonable course would be to use an oral thyroxine preparation that is known to contain approximately its stated content."
I question the basis and ethics (2) of this conclusion favoring a switch to Levothroid (Armour Pharmaceutical Co., Kankakee, Illinois). A switch to a more potent thyroid preparation might be dangerous for patients who have reached a steady state on their current regimen. Ramos-Gabatin (3) found not only the expected change in thyroid function tests
BOEHLER J. Oral Thyroxine. Ann Intern Med. ;101:572–573. doi: 10.7326/0003-4819-101-4-572
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Published: Ann Intern Med. 1984;101(4):572-573.
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