Final answer:
For schedule V controlled substances, prescriptions are generally valid for a year after the issue date. However, the specific validity period of a prescription can vary depending on state laws and regulations.
Step-by-step explanation:
For schedule V controlled substances, prescriptions are generally valid for a year after the issue date. However, the specific validity period of a prescription can vary depending on state laws and regulations.
It is important to note that controlled substances require a written prescription from a licensed healthcare professional. The prescription may not be refilled without a new prescription from the prescriber.
Some examples of Schedule V controlled substances include cough medications with a small amount of codeine, antidiarrheal medications, and certain analgesics.