What is the definition of "PRN" medication?

"PRN" is an abbreviation derived from the Latin phrase "pro re nata," which translates to "as needed." This term refers specifically to medications that are administered only when required, rather than according to a fixed schedule. This flexibility is particularly useful in managing symptoms or conditions that may not be constant, allowing individuals to take medication when they feel it's necessary, such as for pain relief, anxiety, or other acute symptoms.

This concept is fundamental in medication management, as it emphasizes patient autonomy and can lead to more effective symptom control. Understanding the nature of PRN medications helps healthcare providers and patients make informed decisions about treatment options and timing of dosages.