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Verapamil constipation — GPhC CRA MCQ

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EasyCardiovascular TherapeuticsVerapamil constipationGPhC CRA

A patient taking verapamil modified-release for rate control reports worsening constipation after a dose increase. He asks for a suitable first approach. What would you advise the patient?

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Correct answer: B — Discuss constipation as a recognised adverse effect and consider a laxative if appropriate

Verapamil commonly causes constipation, especially after dose increases. The patient should be assessed for red flags and supported with appropriate laxative advice or referred if necessary. Modified-release tablets should not be crushed, and loperamide would worsen constipation.

Reference: BNF