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Lithium and NSAID — GPhC CRA MCQ

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EasyDrug InteractionsLithium and NSAIDGPhC CRA

A patient taking lithium asks to buy naproxen for period pain. She has not had a lithium level checked for several months. What is the most important interaction to flag?

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Correct answer: D — Naproxen can increase lithium levels and toxicity risk

NSAIDs can reduce renal clearance of lithium and increase toxicity risk. The pharmacist should avoid recommending naproxen without prescriber advice and suggest safer options if appropriate. The patient should also be reminded about lithium monitoring and toxicity symptoms.

Reference: BNF