title: Comparison of propranolol and metoprolol in the management of hyperthyroidism.
abstract: 1 Propranolol and metoprolol were both effective in controlling the symptoms and signs of hyperthyroidism. 2 Propranolol caused a highly significant increase in serum reverse T3 concentrations with lesser changes in other serum thyroid hormone levels, whereas metoprolol did not have this effect. 3 Steady-state plasma propranolol and metoprolol levels showed marked inter-individual variation. Metoprolol concentrations showed relatively little intra-individual variability, and could be related to the clinical efficacy of the drug, whereas no such relationship was demonstrated for propranolol.
mesh_terms: D000328:Adult; D002118:Calcium / Q000097:blood; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008790:Metoprolol / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D011412:Propanolamines / Q000627:therapeutic use*; D011433:Propranolol / Q000009:adverse effects / Q000627:therapeutic use*; D013997:Time Factors
chemical_list: D011412:Propanolamines; D011433:Propranolol; D008790:Metoprolol; D002118:Calcium