Diarrhoea with blood — GPhC CRA MCQ
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Correct answer: A — From 16 March, because the later specified appropriate date starts the validity period
Schedule 2, 3 and 4 controlled-drug prescriptions are valid for 28 days from the appropriate date. When both a signature date and a later date before which supply must not occur are present, the later date is the appropriate date, so 16 March starts the period. Presentation and first dispensing do not reset it. The general six-month FP10 validity does not apply to Schedule 2–4 controlled drugs, and any owing balance must also be supplied within the same 28-day period.
Reference: NHSBSA: Time limits for dispensing FP10 prescriptions. https://faq.nhsbsa.nhs.uk/knowledgebase/article/KA-01561/en-us