d/c
Discontinue
ac
Before meals
hs
Bedtime
bid
Two times a day
OD
Right eye
c
With
tid
Three times a day
Stat
Immediately
cc
Cubic centimeter
mcg
Microgram
gm
Gram
mEq
milliequivalent
gr
Grain
ml
Milliliter
Gtt
Drop
mg
Milligram
OS
Left eye
po
By mouth
Otic
Ears
q__h
A number written in the line shows the number hours between doses.
OU
Both eyes
q
Every
pc
After meals
qam
Every morning