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Oral rehydration — GPhC CRA MCQ

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HardGastro-intestinal TherapeuticsOral rehydrationGPhC CRA

A patient established on a rivastigmine 9.5 mg/24 h patch has worn no patch for four complete days during an admission. They are now clinically stable. Which restart plan matches the Exelon SmPC?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: ERe-initiate at 4.6 mg/24 h and re-titrate under the treating team

Option E is correct: after more than three days without a rivastigmine patch, the SmPC requires re-initiation at 4.6 mg/24 h because dose-related cholinergic adverse effects recur when tolerance is lost. Option C deliberately overdoses. Option A substitutes an unsupported seven-day threshold. Option D changes exposure duration rather than strength. Option B uses multiple patches and still restarts close to the previous maintenance dose.

Reference: Exelon patch SmPC: https://www.medicines.org.uk/emc/product/1185/smpc