What does "prn" mean when it comes to medication?

The term "prn" is derived from the Latin phrase "pro re nata," which translates to "as needed." In the context of medication administration, it indicates that a medication should be given only when a specific condition arises or when symptoms are present, rather than at scheduled intervals. This is particularly important for medications that manage pain, anxiety, or other variable conditions, allowing for flexibility and individualization of treatment based on the patient's immediate needs. Understanding this term is crucial for medication aides, as it helps in ensuring that medications are given appropriately and in accordance with patient needs and care plans.