ac
before meals
ad
right ear
am
morning
as
left ear
ASAP
as soon as possible
au
both ears
bid
twice a day
tid
three times a day
qid
four times daily
q4h
Every 4 hours
q
Every
c
with
d
day
DAW
dispense as written
gtt
drop
h or hr
hour
i
one
ii
two
iii
three
iv
four
od
right eye
opth
ophthalmic (eye related)
os
left eye
otic
for ear