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Previous Volume 331:1163 October 27, 1994 Number 17 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: I would like to report on two medications with similar names and dosages, which may be a source of errors by pharmacists. A 54-year-old woman with hypothyroidism due to total thyroidectomy for thyroid carcinoma had been prescribed levothyroxine (brand name, Levoxine) at a dose of 0.125 mg daily. However, her thyroid-function tests revealed very low concentrations of free thyroxine (0.33 ng per deciliter; normal range, 0.71 to 1.85) and triiodothyronine (0.4 ng per milliliter; normal range, 0.6 to 1.8) and a very high concentration of thyrotropin (162.39 microU per milliliter; normal range, 0.35 to 5.5). When the . . . [Full Text of this Article]

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