HOWARD FORMAN, PHARM.D.; JOEL OWERBACH, PHARM.D.; CHRISTINE A. SCZUPAK, PHARM.D.
FORMAN H, OWERBACH J, SCZUPAK CA. Confusion with Coumadin® Tablets. Ann Intern Med. 1978;88:431. doi: 10.7326/0003-4819-88-3-431_2
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Published: Ann Intern Med. 1978;88(3):431.
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To the editor: Recently we wrote to Endo Laboratories pointing out the similarity in color of the 2.5-mg "orange" and 5-mg "peach" Coumadin® tablets. We were especially concerned that this similarity led to difficulties in obtaining an accurate drug history from patients. Patients are often confused when dosage adjustments are made, with both tablets. The reply from Endo was that "each color is distinctive," neither pharmacists nor patients "have difficulty in distinguishing between the two tablets," and "a mere glance at the tablet would indicate the strength." Not satisfied with this response, we conducted an impromptu survey of patients being
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