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Medicines propylthiouracilQuestion & answer

propylthiouracil · Medicine question

Can propylthiouracil cause an underactive thyroid?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

Yes. Excessive suppression of thyroid hormone production can cause hypothyroidism, which is one reason thyroid function is monitored.

Sources for this answer

Propylthiouracil 50mg Tabletsemc · SmPC Current selected SmPC · Version 5

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propylthiouracil

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