How long are all non-controlled substance prescriptions with "PRN" refill designations valid for?

The correct answer is that non-controlled substance prescriptions with "PRN" refill designations are valid for 1 year. In New Hampshire, prescriptions for non-controlled substances are subject to a general validity period that restricts how long a prescription can be refilled. If a prescription is marked as "PRN" for refills, it indicates that the patient may obtain refills as needed, but this option is still bound by the one-year timeframe.

After the one-year expiration, the prescriber would need to authorize a new prescription. This rule ensures that patients are regularly evaluated by their healthcare provider to confirm that the medication continues to be appropriate for their condition, thus enhancing patient safety and monitoring the effectiveness of the treatment.

The duration is shorter compared to other substance classifications, and it helps create a structure for patient care and prescription management. The other options extend beyond this timeframe, which does not accurately align with the regulations in New Hampshire regarding prescription refills for non-controlled substances.