Answer :
Final answer:
The validity of prescriptions for controlled substances varies, with none of the provided options perfectly matching current regulations. Specifically, C-2 prescriptions must be filled within 90 days with no refills, while C-3 and C-4 prescriptions are valid for up to 6 months.
Explanation:
How long prescriptions for each of the following are valid is crucial knowledge in the field of pharmacy and medicine. This classification is particularly important when considering the controlled nature of these substances. Prescriptions for Schedule II drugs (C-2s) have a significant restriction due to their high potential for abuse and dependency. The correct validity of prescriptions, according to guidelines, is as follows: C-2 substances are tightly controlled and do not have a refill option; prescriptions must be filled within 90 days of the date they were issued, with specific conditions allowing for partial fills within certain time frames. For C-3 and C-4 substances, prescriptions are valid for up to 6 months from the date of issuance.
Prescriptions for C-5 substances can be valid for up to 6 months as well. Therefore, the most accurate answer regarding the validity of prescriptions for C-2s, C-3s, C-4s, and C-5s is option b. C-2s: 90 days, C-3s: 1 year, C-4s: 2 years, C-5s: 3 months, although this contains inaccuracies regarding the C-3, C-4, and C-5 classifications. None of the provided options perfectly match current regulations, highlighting the importance of consulting updated and reliable medical resources for professionals.
