HBC
Hit By Car
AD
Right ear
AS
Left ear
AU
Both ears
OD
Right eye
OS
Left eye
OU
Both eyes
IV
Intravenous
SQ/SC
Subcutaneous
IM
Intramuscular
PO
By mouth
SID
*only used in veterinary medicine
Once Daily
TID
Three times daily
BID
Twice Daily
EOD
Every other day
D/C
Discontinue
PRN
As needed
Q
Every
X___d
For a certain amount of days
NPO
Nothing by mouth
Mg
Milligram
G
Gram
Gr
Grain
Mcg
Microgram