PHARM 215 Pharmacy Abbreviations

A set of common pharmacy abbreviations and their meanings used in medical prescriptions and labels.

aa

of each

ad

up to

a.c.

before meals

a.m.

morning

b.i.d

twice daily

DSW

dextrose 5% in water

D10W

dextrose 10% in water

g

gram

gtt

drop

h/hr

hour

h.s

at bedtime

inj

injection

IV

intravenous

mcg

microgram

mEq

milliequivalent

mg

milligram

mL

millilitre

NS

normal saline

oz

ounce

p.c.

after meals

p.m.

afternoon

prn

as needed

p.o.

by mouth or orally

q.h.

every hour

q.i.d.

four times a day

q.s.

a sufficient quantity

sig

write on label

tbsp

tablespoon

tsp

teaspoon

t.i.d.

three times a day

w/o

without

od

right eye

os

left eye

ou

both eyes