Medication Administration Abbreviations

Sometimes reading a medical record can be a real headache. It is full of medical abbreviations. Below is a list of common medication administration abbreviations , use prn.

Doses
cc = cubic centimeter
gm = gram
gr = grain
gtt = drop
mcg = microgram
mEq = milliequivalent
mg = milligram
ml = milliliter
oz = ounce
tsp = teaspoonful
Tbsp = tablespoonful
U = units

Times
ac = before meals
BID = twice a day
pc = after meals
PRN = as needed (commonly written with a time frame and reason the medication is being given. For example q 2-4 h prn for pain meaning every 2-4 hours as needed for pain)
Q = every
QD = every day
QID = four times a day
QOD = every other day
q h = every hour (so q2h would be every two hours)
qhs = every bedtime (sometimes written as just hs)
TID = three times a day
Stat = immediately


Routes of Administration

AD = right ear
AS = left ear
AU = both ears
buc = inside the cheek
IM = intramuscular injection
IV – intravenous
IVPB – intravenous piggyback
OD = right eye
OS = left eye
OU = both eyes
opth. = pertaining to the eye
otic = pertaining to the ear
PO = by mouth (NPO means nothing by mouth)
PER G.T.= through gastrostomy tube
PR = per rectum
SL = sublingual
SQ or sub-Q = subcutaneous (also written as SC)
Supp – suppository
Susp = suspension
TPN – total paternal nutrition
Tab = tablet

Other

c- with
s – without
MAR – medication administration record
OTC – over the counte
Sig- label
EC – enteric coated
DC – discontinue
Per – through by