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Drug Interactions & Contraindications

PTCB Flashcards · 22 cards

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Question

A patient stable on warfarin asks the technician to recommend an OTC pain reliever for a headache. Which product should be flagged for pharmacist consultation before recommending?

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Answer
A.Ibuprofen
B.Acetaminophen
C.Loratadine
D.Docusate sodium
NSAIDs like ibuprofen increase bleeding risk in patients on warfarin through additive antiplatelet effects and GI mucosal irritation. Acetaminophen (in moderate doses) is generally the preferred OTC analgesic for patients on warfarin; loratadine (an antihistamine) and docusate (a stool softener) do not carry this bleeding interaction.