PRN

Abbreviation Basic Pharmacology

As needed. The medication is taken only when the symptom occurs, within the limits of the order.

Sources

Free practice questions that use PRN

Medical Terminology, question 3A prescription label reads "Take 1 tablet PRN for pain." What does PRN mean?

symptomA subjective change the patient reports, such as pain or nausea.
OTCOver the counter: a medication that can be bought without a prescription.
pcAfter meals.
POBy mouth (orally).
PPIProton pump inhibitor: a drug that reduces stomach acid production.
qEvery; combined with a time, as in q6h (every 6 hours) or q2d (every 2 days).
QIDFour times a day. Not the same as q4h, which means every 4 hours.
RxPrescription.
SRSustained release: a form that releases the drug gradually over time; do not crush it.