title: Beta 2-adrenoceptor agonists and thyroid hormones.
abstract: The potential influence of the selective beta 2-adrenoceptor agonist terbutaline on the serum concentration of the thyroid hormones in humans was studied in 11 healthy euthyroid subjects. Five served as a control group without medication while six received 5 mg terbutaline three times daily for 2 weeks. No significant differences were found between the two groups by measuring the serum concentrations of thyroxine, triiodothyronine, reverse triiodothyronine and resin-triiodothyronine uptake. The use of a beta 2-adrenergic receptor stimulating drug is relatively contraindicated in untreated thyrotoxicosis. This recommendation is based upon a summation of clinical adverse reactions and not due to an effect on the serum concentrations of thyroid hormones.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000494:pharmacology*; D000328:Adult; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000378:metabolism; D008297:Male; D013726:Terbutaline / Q000494:pharmacology; D013963:Thyroid Hormones / Q000097:blood*
chemical_list: D000318:Adrenergic beta-Agonists; D013963:Thyroid Hormones; D013726:Terbutaline