p.r.n.

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See also: prn and PRN

English

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Phrase

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p.r.n.

  1. (medicine) Abbreviation of pro re nata.
    Alternative forms: prn, PRN
    • 1999, Harold Merskey, Dwight Moulin, “Pharmacological Treatment in Chronic Pain”, in Andrew R. Block, Ephrem Fernandez, Edwin Kremer, editors, Handbook of Pain Syndromes: Biopsychosocial Perspectives, Mahwah, NJ: Lawrence Erlbaum Associates, Inc., →ISBN, page 152:
      For example, apart from being given three to four times a day on a time-contingent basis, ibuprofen or naproxen or most other NSAIDs may be taken p.r.n. (as occasion rises) when pain is troublesome and omitted at other times.

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