propylthiouracil · Medicine question

How does propylthiouracil reduce thyroid hormone production?

Name: How does propylthiouracil reduce thyroid hormone production?
Published: 2026-11-08T01:59:02.373Z

iatroX medicinesPublished 8 November 2026

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Propylthiouracil inhibits thyroid peroxidase, preventing iodine incorporation into tyrosyl residues of thyroglobulin and inhibiting the coupling of iodotyrosyl residues to form iodothyronine.

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Propylthiouracil 100mg TabletsMorningside Healthcare Ltd · emc · SmPC §5.1 Pharmacodynamic properties · Version 1Document updated 29 December 2025

Sources checked 8 November 2026

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