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Definition of PTU

PTU: Propylthiouracil, an antithyroid medication, a drug that blocks the production of thyroid hormone by the thyroid gland. PTU is used to treat hyperthyroidism in order to reduce the excessive thyroid activity before surgery and to treat and maintain patients not having surgery.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012

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