A patient with hyperthyroidism is placed on propylthiouracil to reduce thyroid hormone synthesis. The patient asked the nurse when the drug will start working. What should be the nurse's response?

1-3 weeks


•The therapeutic effect of propylthiouracil (PTU) has an onset of 10-21 days and peak of 6-10 weeks.

•The patient should receive symptomatic treatment with a beta blocker until her thyroid levels have returned to normal range.

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