What abbreviation is used to denote "as needed" in medication administration?

The abbreviation "PRN" stands for the Latin term "pro re nata," which translates to "as needed." This is commonly used in medication administration to indicate that a patient should take a medication only when certain conditions are met or symptoms arise, rather than on a regular schedule. For example, a physician may prescribe a pain reliever to be taken PRN, meaning the patient can take it whenever they experience pain, rather than at specific times each day.

This abbreviation is widely recognized among healthcare professionals, ensuring clarity in medication instructions and allowing for flexibility in patient care. The use of "PRN" helps prevent unnecessary medication consumption and promotes the responsible use of prescribed drugs according to individual patient needs.