What common medication can accelerate the metabolism of levothyroxine? A) Phenytoin B) Ketoconazole C) Warfarin D) Erythromycin

Understand the Problem

The question is asking which common medication can increase the rate at which levothyroxine is metabolized in the body, suggesting a focus on pharmacology and drug interactions.

Answer

Phenytoin.

The final answer is Phenytoin.

Answer for screen readers

The final answer is Phenytoin.

More Information

Phenytoin is an antiepileptic drug that can induce hepatic enzymes, thereby accelerating the metabolism of other drugs, including levothyroxine. This can lead to decreased efficacy of levothyroxine.

Tips

A common mistake is confusing drugs that increase metabolism with those that inhibit it. It's important to remember that phenytoin induces enzymes, which speeds up metabolism.

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