non rep

Medical abbreviation · Prescription

non rep stands for Non repetatur (do not repeat), a prescription abbreviation.

Latin instruction meaning the prescription must not be refilled. It is the traditional counterpart of the English "no refills" and is found mainly on older or non-US prescriptions.

Example: Diazepam 5 mg #10, non rep.

Usage notes

Also written "non rep." or "N.R." The opposite instruction, "rep." (repetatur), allowed a repeat filling. In the US, refill limits for controlled substances are fixed by federal law, so the phrase is mainly of historical interest.

Related abbreviations

More prescription abbreviations

• mcg/kg/min – Micrograms per kilogram per minute
• mEq – Milliequivalent
• mg/kg – Milligrams per kilogram
• mg/m2 – Milligrams per square meter
• mL/h – Milliliters per hour
• nocte – Nocte (at night)
• NR – No refills
• NTE – Not to exceed
• OD – Omni die (once daily)
• OJ – Orange juice
• PC – Post cibum (after meals)
• PRN – Pro re nata (as needed)

See all 77 prescription abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.