amp
ampule
liq
liquid
sup
suppository
ung
ointment
gtt
drop
ID
intradermally
IM
intramuscularly
inj
inject, injection
IV
intravenously
PO
by mouth, orally
NPO
nothing by mouth
PRN
whenever necessary
PR
rectally
subcut
subcutaneously
top
topically
pc
after meals
q
every
bid
twice a day
qs
sufficient amount
sig
write on the label