PROPYLTHIOURACIL

(Propyl-Thyracil)

Standard Prescription

propylthiouracil __mg PO Q__H (__mg/kg/24 hr)

Dosages

Children:
Initial: 5 to 7 mg/kg/24 hr PO div. Q8H
Maintenance: 1/3 to 2/3 of the initial dose, Q8H

Adults:
Initial: 300 to 450 mg/24 hr PO div. Q8H
Maintenance: 100 to 150 mg/24 hr PO div. Q8H

Mechanism of Action

Anti-thyroid agent.

Forms Supplied

Tablet: 50 mg, 100 mg

Comments

Propylthiouracil is no longer recommended as first line therapy because of hepatic and renal toxicity.

Begin maintenance when patient is euthyroid (usually after 2 months).

Adjust dose to achieve T3, FT4, and TSH serum levels in the normal range.

References


Last Edited

2013-08-29 02:20:45