What is the time limit for filling the remaining portion of a partially filled Schedule II prescription?

The correct answer indicates that the remaining portion of a partially filled Schedule II prescription must be filled within 72 hours from the time the prescription was initially filled. This regulation ensures that patients have timely access to their medications while also aiming to prevent misuse and diversion of controlled substances.

In the context of Schedule II prescriptions, the law permits partial fills, particularly when the full quantity is not available at the time of dispensing or when the patient or prescriber requests a smaller initial fill. This regulation allows for flexibility in filling prescriptions without compromising patient care.

The emphasis on the 72-hour timeframe allows pharmacists to monitor and verify the need for the remaining medication while ensuring compliance with the law. If the remaining portion is not filled within this period, the prescription is typically considered void for the unfilled portion, thereby necessitating a new prescription if the patient still requires the medication.