Methadone missed instalment — GPhC CRA MCQ
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Correct answer: B — Place the prescription on hold and contact the treatment service
After three consecutive missed opioid-substitution doses, tolerance may have fallen and the usual dose may cause overdose. Current UK service guidance says to place the prescription on hold and contact the prescriber or treatment service before further supply; the missed doses are not accumulated.
Reference: GOV.UK: community pharmacy delivery of substance-misuse services: https://www.gov.uk/government/publications/community-pharmacy-delivering-substance-misuse-services/community-pharmacy-delivering-substance-misuse-services