Medical Abbreviations and Acronyms

1. DIEB. ALT.
   diebus alternis - every other day
2. NON REP.
   Do Not Repeat
3. o.l.
   Overload
4. o.n.
   Omni Nocte
5. o.n.
   Overnight
6. o.u.
   Both Eyes
7. o.u.
   Each Eye
8. o.u.
   Oculus Uterque
9. o.u.
   Oculus Utro
10. o.u.
    oculus uterque - both eyes
11. p.r.n.
    As Needed
12. p.r.n.
    When Required
13. p.r.n.
    Pro Re Nata
14. q.1h
    Quaque 1 Hora (every 1 hour)
15. q.4.h.
    Every four hours
16. q.6.h.
    Every six hours
17. q.a.d.
    Every Other Day
18. q.a.d.
    Quoque Alternis Die
19. q.a.d.
    quoque alternis die - every other day
20. q.a.d.
    every other day (from Latin quaque altera die)

Last updated: May 2, 2025 — Total entries: 207,332