AD
right ear
AS
left ear
AU
both ears
ac
before meals
ad lib
as desired
ASAP
as soon as possible
bid
twice a day
c with line over it
with
cc
cubic centimeter
cap
capsule
d/c
discontinue
dil
dissolve or dilute
elix
elixir
gm
gram
gr
grain
gtt
drop
h/hr
hour
HOB
head of bed
Hs,qhs
hour of sleep or bedtime
kg
kilogram
L
liter
LOC
laxative of choice
mcg
microgram
MAR
medication administration record
MDI
metered dose inhaler
mEq
milliequivalent
mg
milligram
ml
milliliter
NPO
nothing by mouth
OD
right eye
OS
left eye
OU
both eyes
OTC
over the counter
otic
ear
ophth
eye
oz
ounce
pc
after meals
po
by mouth
PR
per rectum
PRN
as needed
q
every
q am
every morning
qd
every day
qh
every hour
q 2h
every two hours
qod
every other day
s with line over it
without
SL
sublingual
stat
immediately
supp
suppository
susp
suspension
T, tbsp, tbs
tablespoon
t, tsp
teaspoon
tab
tablet
tid
three times a day
tinc
tincture