GI
gastrointestinal
NDC
national drug code
MDI
metered dose inhaler
CI
chlorine
OTC
over the counter
Ig
immunoglobulin
IV
intravenous
BID
twice a day
DISP
dispense
ATC
around the clock
AMP
ampule
D5W
5% dextrose in water
GTT or GTTS
drop or drops (ear or eye)
AC
before meals
H
hour
CA
calcium
HIV
human immunodeficiency virus
CAP, CA, CAPS, or CAS
capsule or capsules
IM
intramuscular
G
gram