Acebutolol and Propylthiouracil interaction

Acebutolol and Propylthiouracil: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Propylthiouracil label · effective 2026-08-25

Moderate

Beta-adrenergic blocking agents: Hyperthyroidism may cause an increased clearance of beta blockers with a high extraction ratio.

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Moderate

A reduced dose of beta-adrenergic blockers may be needed when a hyperthyroid patient becomes euthyroid.

Drug interactionsby drug classView label on DailyMed

From the Acebutolol (Acebutolol Hydrochloride) label · effective 2025-11-07

Moderate

Abrupt withdrawal of β-blockade may precipitate a thyroid storm; therefore, patients suspected of developing thyrotoxicosis from whom acebutolol therapy is to be withdrawn should be monitored closely.

Warningsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.