Associations to the word «Prn»

Wiktionary

PRN, abbreviation. As the situation may require, such as in directions on medical charts by doctors for the benefit of nursing staff indicating actions that may be taken at their discretion depending on patient condition; or likewise instructions to a patient on a prescription indicating they may take the medicine if and when they feel the need for it

Dictionary definition

PRN, adverb. According to need (physicians use PRN in writing prescriptions); "add water as needed".

Wise words

Words - so innocent and powerless as they are, as standing in a dictionary, how potent for good and evil they become in the hands of one who knows how to combine them.
Nathaniel Hawthorne