aa
Of each
Ac
Before meals
Ad lib
As desired, freely
Am
Morning, before noon
Amp
Ampule
Aq
Aqueous, water
bid
Twice a day
biw
Twice a week
C with a line over
With
C,c
Cup
Cap,caps
Capsule
CD
Controlled dose
CR
Controlled release
dil
Dilute
DS
Double strength
EC
Enteric coated
elix
Elixir
fl,fld
Fluid
GT
Gastronomy tube
gtt
Drop
h,hr
Hour
ID
Intradermal
IM
Intramuscular
IV
Intravenous