True or false: A controlled substance in Schedule III or IV may be refilled for up to a year from the original prescription?

The statement regarding the refill of a controlled substance in Schedule III or IV is indeed true. A prescription for these substances can be refilled up to six months from the date it was originally issued, but not beyond that period. This regulation is in place to help monitor and control the use of these substances, ensuring that they are not misused or overprescribed.

Schedule III and IV drugs are considered to have a moderate to low potential for dependence, thus allowing for refills, but under the stipulation that it does not exceed a total of five refills within that six-month timeframe. Statements suggesting longer refill durations do not align with the established regulations set forth by the Drug Enforcement Administration (DEA) and the respective state laws governing the practice of veterinary medicine.