What would you typically do if a medication is needed 'as required'?

In veterinary medicine, when a medication is needed "as required," it is commonly abbreviated as PRN, which stands for "pro re nata." This means that the medication should be administered only when necessary, rather than on a fixed schedule. The PRN directive allows for flexibility based on the specific needs of the animal and the condition being treated. For example, if a pet is experiencing pain or discomfort, the medication can be given at that moment to alleviate those symptoms, rather than adhering to a routine dose that may not be needed at all times.

Continuous administration, a daily dose, or even a weekly schedule does not align with the PRN approach because these methods involve giving medication regardless of immediate need, which can lead to potential side effects or unnecessary exposure to the drug. Therefore, administering medication PRN is important for effective and safe treatment, ensuring that the animal receives care that is responsive to its current condition.