Refills are allowed for which schedules of medications according to federal regulations?

Refills are permitted for Schedule III and IV medications according to federal regulations. These schedules include substances that have a moderate to low potential for physical and psychological dependence. The law allows for a maximum of five refills within a six-month period from the date of the prescription, as long as the prescribing healthcare provider has authorized the refills.

Schedule I medications are considered to have a high potential for abuse and have no accepted medical use in the United States, which is why they cannot be prescribed or refilled. Schedule II medications also have a high potential for abuse and are subject to strict regulations; specifically, they cannot be refilled at all and require a new prescription for each dispensing. Schedule V medications, while having a lower potential for abuse and may allow for refills, are not included in the same regulatory framework as Schedule III and IV regarding refilling practices. Thus, the correct answer regarding allowable refills is found within Schedule III and IV.