Results 251 to 260 of about 37,295 (269)
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Standards for Levothyroxine Preparations
JAMA: The Journal of the American Medical Association, 1980To the Editor.— Jacobson and coworkers (243:733, 1980) recently presented their experience on the nonequality of two thyroxine preparations. They demonstrated that the 100-μg tablets from Letter and Synthroid were physiologically nonbioequivalent and therefore should not be dispensed interchangeably.
Arvin P. Shroff, Judith K. Jones
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Error in Dose of Levothyroxine
JAMA, 1978To the Editor.— We were surprised to read in the QUESTIONS AND ANSWERS section (239:1205-1208, 1978) that the patient who had surgery for an autonomous hot thyroid nodule subsequently was treated with levothyroxine sodium (Synthroid), 0.5 mg/day. Our experience is consistent with Stock et al 1 and Cotton et al 2 in suggesting that the vast majority of
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JAMA, 2014
Importance Rates of thyroid hormone prescribing in the United States and the United Kingdom have increased substantially. If some of the increase is due to lowering the thyrotropin threshold for treatment, this may result in less benefit and greater harm.
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Importance Rates of thyroid hormone prescribing in the United States and the United Kingdom have increased substantially. If some of the increase is due to lowering the thyrotropin threshold for treatment, this may result in less benefit and greater harm.
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Interference with the absorption of levothyroxine
Current Opinion in Endocrinology & Diabetes, 2003Levothyroxine sodium is commonly prescribed for physiologic replacement of hypothyroidism and suppression of thyroid neoplasia. The absorption of levothyroxine (L-T4) is approximately 80% after oral administration. Gastrointestinal diseases may cause malabsorption, and certain drugs have been shown to interfere with the absorption of L-T4.
Jerome M. Hershman, Nalini Singh
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In Vivo Comparison of Levothyroxine Preparations
JAMA: The Journal of the American Medical Association, 1982Two brands of levothyroxine sodium (Levothroid and Synthroid) were found not to be bioequivalents. Until a more precise standardization for levothyroxine sodium preparation is available, patients should be consistently treated with one brand name preparation.
Robert L. Young +2 more
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JAMA: The Journal of the American Medical Association, 1992
In Reply. — JAMA reaches a wide range of Chinese-speaking medical and health care specialists all over the world. There are over 1.25 billion Chinese-speaking people and not many of them have full command of the medical specialty involved, nor are there too many of them who have the expertise to select an appropriate Chinese term for levothyroxine ...
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In Reply. — JAMA reaches a wide range of Chinese-speaking medical and health care specialists all over the world. There are over 1.25 billion Chinese-speaking people and not many of them have full command of the medical specialty involved, nor are there too many of them who have the expertise to select an appropriate Chinese term for levothyroxine ...
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Substitution of Levothyroxine Products
JAMA: The Journal of the American Medical Association, 1979ABSTRACT To the Editor.— Since calling attention to the problem of generic substitution of levothyroxine products in a recent letter (240:1241, 1978), we recently encountered evidence demonstrating that in one case, a generic product was not equal in potency to the brand name product.A 68-year-old woman who had primary hypothyroidism and a large goiter
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The emergence of levothyroxine as a treatment for hypothyroidism
Endocrine, 2016To describe the historical refinements, understanding of physiology and clinical outcomes observed with thyroid hormone replacement strategies.A Medline search was initiated using the search terms, levothyroxine, thyroid hormone history, levothyroxine mono therapy, thyroid hormone replacement, combination LT4 therapy, levothyroxine Bioequivalence ...
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Treatment of Hypothyroidism with Levothyroxine
New England Journal of Medicine, 1987A.G.H. Smals +3 more
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The Nonequivalence of Levothyroxine Products
Drug Intelligence & Clinical Pharmacy, 1986Betty J. Dong +2 more
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