Medical and Prescription Abbreviations

A complete set of vocabulary flashcards defining standard prescription and medical abbreviations.

b.i.d.

Twice a day (bis in die).

d

Day.

o.u.

Both eyes (oculus uterque).

p.r.n.

As needed (pro re nata).

q.d.

Every day / daily (quaque die).

q.s.

A sufficient quantity (quantum sufficiat).

tbsp

Tablespoon ($\sim 15\,\text{mL}$).

SC / SQ / SubQ

Subcutaneous (injected under the skin).

stat

Immediately / at once (statim).

TAD

Take as directed.

troch

Lozenge (troche).

u.d. / ut dict.

As directed (ut dictum).

w/o

Without.

p.r.

Rectally / per rectum.

p.c.

After meals (post cibum).

PA

Prior authorization (or Physician Assistant).

neb.

Nebulizer / spray solution (nebula).

lot.

Lotion.

inh.

Inhalation / inhaler.

bucc.

Buccal (inside the cheek).

bib.

Drink (bibe).

aa

Of each (ana).

amp.

Ampule.

ss

One-half (semis).

t.i.d.

Three times a day (ter in die).

gtt

Drops (guttae).

aq.

Water (aqua).

EC

Enteric-coated.

IM

Intramuscular (injected into a muscle).

IV

Intravenous (injected into a vein).

q.h.s.

Every day at bedtime (quaque hora somni).

ung

Ointment (unguentum).

q.a.m.

Every morning (quaque ante meridiem).

IR

Immediate-release.

a.s.

Left ear (auris sinistra).

a.u.

Both ears (aures utrae).

noc

Night / at night (nocte).