Prescription Abbreviations and Symbols

49 terms by erika618

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ā

ante
before

a.c.

ante cibum
before meals

a.m.

ante meridiem
before noon

b.i.d

bis in die
twice a day

h

hora
hour

h.s.

hora somni
at the hour of sleep (bedtime)

noc.

noctis
night

p (with line above it)

post
after

p.c.

post cibum
after meals

p.m.

post meridiem
after noon

p.r.n.

pro re nata
as needed

q

quaque
every

q.d.

quaque die
every day

qh

quaque hora
every hour

q2h

every 2 hours

q.i.d.

quarter in die
four times a day

q.o.d

quaque altera die
every other day

STAT

statium
immediately

t.i.d.

ter in die
three times a day

AD

auris dextra
right ear

ad lib.

ad libitum
as desired

amt

amount

aq

aqua
water

AS

auris sinistra
left ear

AU

auris unitas
both ears

c (with line over it)

cum
with

NPO

non per os
nothing by mouth

OD

oculus dexter
right eye

OS

oculus sinister
left eye

OU

oculi unitas
both eyes

per

by or through

p.o.

per os
by mouth

PR

per rectum
through rectum

PV

per vagina
through vagina

Rx

recipe; prescription

s (with line over it)

sine
without

Sig

signa
label; instruction to the patient

ss (with line over both)

semis
one-half

wa

while awake

x

times or for (x6 means six times, x2d means for 2 days)

>

greater than

<

less than

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