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prn

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prn (in prescriptions)

abbreviation for

(Medicine / Pharmacology) pro re nata

[Latin: as the situation demands; whenever needed]

ThesaurusLegend: Synonyms Related Words Antonyms

Adv.

1.

PRN - according to need (physicians use PRN in writing prescriptions); "add water as needed"

as needed, as required, pro re nata

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