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CD instalment prescription wording — GPhC CRA MCQ

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ModeratePharmacy Law and EthicsCD instalment prescription wordingGPhC CRA

A prescription for methadone mixture 1 mg/mL states 'dispense weekly' but gives no instalment amount or interval details. The patient usually collects daily supervised doses. The prescriber is unavailable. What is the legal classification/requirement?

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Correct answer: B — The instalment directions are insufficient and should be clarified before supply

Instalment prescriptions for controlled drugs need clear directions on the amount to be supplied and the intervals. Ambiguous wording can lead to unsafe or unlawful supply. The prescriber or an appropriate authorised service should be contacted to clarify the directions.

Reference: Misuse of Drugs Regulations 2001; MEP