AC
before food (ante cibum)
PC
after food (poste cibum)
GTT
drops
EC
enteric coated
UNG
ointment
CAP
capsule
ELIX
elixir
NBM or NPO
nil by mouth
SUPP
suppository
TAB
tablet
SR
slow release
BD
twice daily
TDS
three times daily
PRN
as required
QID
four times daily
QH or QQH
every four hours
nocte
at night
stat
immediately
PO
by mouth
O
oral
IMI
intra muscular injection
SCI
sub cutaneous injection
SL
sub lingual under tongue
PR
rectally
NEB
nebulizer
OD
right eye
OS
left eye
BUC
in the cheek pouch