CD prescription validity — GPhC CRA MCQ
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Correct answer: E — The prescription is no longer valid for supply
Schedule 2 controlled drug prescriptions are valid for 28 days from the appropriate date. In this vignette, "The prescription is no longer valid for supply" is the safest single best answer. The other options are less appropriate because they miss the key clinical risk, conflict with UK medicines guidance, or delay needed review.
Reference: Misuse of Drugs Regulations 2001; MEP