What does "prn" refer to in medical contexts?

In medical contexts, "prn" is an abbreviation derived from the Latin phrase "curae prn," which translates to "as needed." This term indicates that a medication or treatment should be administered only when necessary rather than on a fixed schedule. For example, a patient might be prescribed pain relief medicine to take prn for discomfort, meaning they would take it when they feel pain, rather than at regular intervals.

This flexible dosing approach is important in managing various medical conditions, as it allows for individualized patient care and helps avoid unnecessary medication use. Understanding the meaning of "prn" is essential for healthcare providers and patients alike, as it informs them of when it is appropriate to use medications based on specific symptoms or needs.