Methimazole [Chemical/Ingredient] Merkazolil C0025644 1-Methyl-2-mercaptoimidazole Methimazole Methymazol 6835 D008713 Methimazole Mercasolyl Tiamazol Thiamazole C25030 A thioureylene antithyroid agent that inhibits the formation of thyroid hormones by interfering with the incorporation of iodine into tyrosyl residues of thyroglobulin. This is done by interfering with the oxidation of iodide ion and iodotyrosyl groups through inhibition of the peroxidase enzyme. 2H-Imidazole-2-thione, 1,3-dihydro-1-methyl- Thimazol Methylmercaptoimidazole Methimazole Mercazolyl M0013573 N0000007339 Imidazoles [Chemical/Ingredient] Sulfhydryl Compounds [Chemical/Ingredient]