Propylthiouracil
Pronounced pro-pil-thy-o-YOOR-ah-sil
Brand names: PTU
Type: Antithyroid medicine · All Hormone & Endocrine Medicines
What Propylthiouracil is used for
- Overactive thyroid (hyperthyroidism)
- Graves disease, including early in pregnancy
- Thyroid storm (hospital)
Common side effects
- Rash
- Nausea
- Joint pain
- Changes in taste
Important cautions
- Can cause severe, sometimes fatal, liver injury — report yellowing of the skin, dark urine, or severe tiredness promptly
- Rarely, it can sharply lower white blood cells — fever or sore throat needs urgent medical review
How it comes
Tablets. This guide lists forms only — it never lists strengths or doses.
Toxicity lists: Propylthiouracil also appears on Medicines That Can Harm the Liver.
Related medicines — Hormone & Endocrine Medicines
Condition guides on MedicalVideos.com
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.