Calcium Supplements May Interfere With Thyroid Treatment
News article warning that high calcium levels may result in lower thyroid hormone levels for women taking supplements. (June 6, 2000)
Ciprofloxacin interacts with thyroid replacement therapy
Article covers two cases of unexplained hypothyroidism in patients taking ciprofloxacin. (May 1, 2005)
Comparison of Two Drug Regimens for Hypothyroidism
Further studies support no additional benefit with a combination of L-thyroxine and liothyronine over treatment with L-thyroxine alone. (March 15, 2005)
Journal of Clinical Endocrinology & Metabolism
Study reports that combined Thyroxine/Liothyronine treatment does not improve well-being, quality of life, or cognitive function compared to Thyroxine alone. (May 28, 2003)
NEJM - Effects of Thyroxine as Compared with Thyroxine plus Triiodothyronine in Patients with Hypothyroidism
Older study on added T3, its possible role in improving mood, and neuropsychological function. (February 11, 1999)
New Questions Regarding Bioequivalence of Levothyroxine Preparations: A Clinician's Response
Discusses generic T4 medications and the differences among preparations. From the AAPS Journal. [PDF] (February 7, 2005)
Propyl-Thyracil
Used in the medical management of hyperthyroidism. Lists prescribing information.
Thyroid Experts Warn of Clinically Important Differences in Potency of FDA-Approved Levothyroxine Products
Generic bioequivalence data confirms medical societies’ concern about recently approved generic levothyroxine preparations. (August 11, 2004)
Thyroid Hormone
Prescribing information about desiccated thyroid as a hormonal supplement for hypothyroidism. By RxMed.
Thyroid Hormone Replacement
Instructions for patients of the Pituitary Center at Vanderbilt University Medical Center, of interest to anyone taking levothyroxine.
