Final answer:
The timeframe for initial partial dispensing of a CII prescription by a licensed non-Massachusetts prescriber depends on specific state regulations, although federal laws allow partial dispensing within 72 hours. Pharmacies must verify DEA registration and the legitimacy of prescriptions from out-of-state prescribers.
Step-by-step explanation:
The timeframe for the initial partial dispensing of a Schedule II (CII) prescription issued by a licensed prescriber who does not hold a Massachusetts Controlled Substance Registration (MCSR) is likely to be governed by both federal law and the specific state regulations of Massachusetts. Under federal law, partial dispensing of CII medications is allowed under certain conditions, such as when the total quantity prescribed and dispensed does not exceed the amount prescribed, and it is recorded properly. However, for the specific rules regarding prescribers without an MCSR in Massachusetts, you would need to consult the state's pharmacy regulations or the Board of Pharmacy since these regulations can vary and have particular requirements regarding out-of-state prescriptions.
Without specific Massachusetts regulations, as a general guideline under federal law, the partial dispensing of a CII prescription is allowed if it is within 72 hours of the initial partial dispensing. If the remaining portion is not dispensed within that timeframe, the rest must be forfeited, and a new prescription is required. It's important to note that, for out-of-state prescribers, pharmacies must also verify the prescriber's registration with the DEA and validate the prescription's legitimacy.