Final answer:
No, a Nasonex prescription written over a year ago cannot be filled as it is likely considered expired. Patients are generally required to obtain a new prescription after the validity period, which is often one year.
Step-by-step explanation:
The question pertains to whether a Nasonex prescription (Rx), which was written over a year ago, can be filled. The answer is b) No. Generally, for controlled substances, the prescription must be filled within six months, and for non-controlled substances, the validity can vary but usually remains around one year from the date it was written. In this case, a prescription written over a year ago would likely be considered expired. It's important for the patient to obtain a new prescription to ensure the medication is still appropriate for their medical needs.