[A thiourea derivative with antithyroid property. Propylthiouracil (PTU) interferes with the oxidation of iodine possibly by interaction with peroxidase or a peroxidase-mediated complex reaction, thereby inhibiting synthesis of thyroid hormones tri-iodothyronine (T3) and thyroxine (T4). In addition, this agent inhibits the Type I 5'-deiodinase (D1), an enzyme involved in the peripheral conversion of thyroxine to tri-iodothyronine. This results in decreased plasma triodothyronine concentrations and decreased entrance of thyroxine into cells thereby reducing thyroid hormone activity. ( NCI )]
UMLS (NCI) C0033511 - Nucleic Acid, Nucleoside, or Nucleotide
- Pharmacologic Substance
Relation/PAR: thiouracil
[HS852] ANTITHYROID AGENTS
Relation/CHD: PROPYLTHIOURACIL 50 MG