Propylthiouracil (PTU) definition - Thyroid: health and medical information about Thyroid Disease, Hypothyroidism, Hyperthyroidism and Thyroid Disease

Propylthiouracil (PTU): A drug that blocks the production of thyroid hormone by the thyroid gland. PTU is used to treat hyperthyroidism, to reduce the excessive thyroid activity before surgery and to treat and maintain patients not having surgery.