Final answer:
Schedule III and IV controlled substances can be refilled up to five times within six months after the date of the prescription, provided a doctor has authorized the refills.
Step-by-step explanation:
Under the Controlled Substances Act, Schedule III and Schedule IV controlled substances can be refilled if authorized by a physician. Schedule III substances, such as less potent prescription pain relievers when compared to Schedules I and II, may be refilled up to five times within a six-month period. Schedule IV substances, which include drugs with a lower potential for abuse and dependency, also follow this refill rule.
For both Schedule III and IV medications, refills beyond this limit are not permitted without a new prescription from a healthcare provider. It is essential for pharmacists and healthcare providers to adhere to these regulations to prevent misuse and diversion of controlled substances. The refill limitations aim to balance the legitimate medical need for these medications with a measure to prevent potential abuse.