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Commonly Used Prescription Abbreviations

Have you ever wondered what those abbreviations on prescription labels stand for? Following is a handy reference guide with a listing of commonly used prescription abbreviations, with thanks to Karen Quatman.

  • s.i.d - once a dayb.i.d - twice a day
  • t.i.d. - three times a day
  • q.h. - every hour
  • q.d. - every day
  • ut.dict. - use as directed
  • cc - cubic centimeter
  • a.s. - left ear
  • a.d. - right ear
  • a.u. - each ear
  • p.o. - by mouth
  • q.o.d. - every other day
  • e - with
  • s - without
  • p.r.n. - as required
  • U or u - unit
  • o.s. - left eye
  • o.d. - right eye
  • o.u. - each eye

Provided by Karen Quatman
Printed with Permission ~ 22 May 2000


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