Prescriptions Abbreviations

 

 

Abbreviation
Definition
Abbreviation
Definition
  p.o
-
orally   q.d.
-
once a day
  I.M.
-
intramuscularly   b.i.d.
-
twice a day
  Subq.
-
subcutaneous   t.i.d.
-
three times a day
  Rectally
-
rectally   q.i.d.
-
four times a day
  I.V.
-
intravenous   q.h.s.
-
before bed
  O.D.
-
in the right eye   5X a day
-
five times a day
  O.S.
-
in the left eye   q.4h
-
every four hours
  O.U.
-
in both eyes   q.6h
-
every six hours
   
    q.o.d.
-
every other hour
   
    prn.
-
as needed
 

-
One    
 
 

-
Two   q.t.t.
-
drop
 
-
Three   a.c.
-
before meals
 
-
Four   p.c.
-
after meals

 

   
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