a.c.
Before meals
P
After
C
With
A.D.
Right ear
A.S.
Left ear
A.U.
Both ears
b.i.d
Twice a day
Gtt
Drop
h
Hour
h.s.
Hours sleep (bedtime)
IM
Intra muscular (injections)
NPO
Nothing by mouth
OD
Right eye
OS
Left eye
OU
Both eyes
p.c
After meals
PO
By mouth
q.d.
Every day
q.h.
Every hour
q.i.d
Four times a day
q.o.d
Every other day
q
Every
SQ
Subcutaneous (skin)
Stat
Immediately