| Question |
Answer |
| aa (with line over each) or aa |
Of each |
| a.c. |
Before meals |
| ad |
To, up to |
| AD |
Right ear (auris dextra) |
| ad lib |
As desired |
| AM or a.m. |
Morning |
| amt |
Amount |
| aq. |
Water |
| AS |
Left ear (auris sinestra) |
| AU |
Both ears (auris uterque) |
| b.i.d. or BID |
Twice a day |
| b.i.n. |
Twice a night |
| c (with line over it) |
With |
| cap or caps |
Capsule |
| comp |
Compound |
| d |
Day |
| dil. |
Dilute |
| disp |
Dispense |
| elix. |
Elixer |
| hr |
Hour |
| h.s. |
Hour of sleep (bedtime) |
| IM |
Intramuscular |
| inj. |
Inject |
| IV |
Intravenous |
| liq. |
Liquid |
| mixt |
mixture |
| mist. |
A mixture |
| noc or noct. |
Night |
| non rep |
Do not repeat or No refills |
| NPO |
Nothing by mouth (nulla per os) |
| O.D. |
Right eye |
| oint |
Ointment |
| O.S. |
Both eyes, each eye |
| p.c. |
After meals |
| per |
Through or by |
| p.m. |
Afternoon |
| p.o. |
By mouth |
| p.t. |
Through the rectum |
| p.r.n or PRN |
As needed |
| p.v. |
Through the vagina |
| pulv. |
Powder |
| q |
Every |
| q.d. |
Every day |
| q.h. |
Every hour |
| q2h |
Every 2 hours |
| q.i.d. or QID |
Four times a day |
| Qn |
Every night |
| q.o.d. |
Every other day |
| q.s. or q.v. |
Quantity sufficient or As much as you wish |
| S (with a line over it) |
Without |
| Sig. |
Write on label |
| Sol. |
Solution |
| sp. |
Spirits |
| s.o.s. |
If necessary |
| Stat |
Immediately |
| Supp. |
Suppository |
| Syr. |
Syrup |
| Top. |
Topically |
| Tab. |
Tablet |
| t.i.d. or TID |
Three times a day |
| tr. or tinct |
Tincture |
| u.d. |
As directed |
| vo |
Verbal order |
| x |
Times |