PRN

English

Etymology

From Latin phrase pro (“for”) rē (“thing, matter”) nātā (“born, arisen”): "for what arises".

Adverb

PRN

(medicine) As needed.

Usage notes

Used on medical charts by doctors to indicate that actions may be taken at the discretion of nursing staff depending on patient condition, and on prescriptions to indicate that the medicines may be taken if and when the patients feel the need for them.

Anagrams

NPR, PNR, RPN

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