Rx Shorthand
| Shorthand | Definition |
| aa | ana, so much of each |
| a.c. | ante cibum, before meals |
| ad effect | until effective |
| ad lib | as much as desired |
| AP | ante partum, before childbirth |
| ap | ante prandium, before dinner |
| aq | aqua, water |
| bid | bis en die, twice each day |
| c | cum, with |
| dbl | double |
| h.s. | hora somni, at bedtime |
| i.d. | idem, the same |
| IM | intramuscular |
| k | constant |
| mb | misce bene, mix well |
| MDR | minimum daily requirement |
| MED | minimum effective dose |
| npo | nil peros, nothing by mouth |
| o | nono, without |
| O.D. | oculus dexter, right eye |
| O.S. | oculus sinister, left eye |
| P | post, after |
| per os | by mouth |
| qd | quaque die, every day |
| qh | quaque hora, every hour |
| qid | quater in die, 4 times a day |
| qv | quatum vis, as much as you wish |
| Rx | recipe, prescription |
| STAT | statim, immediately |
| sum. | sumat, let it be taken |
| T | temperature |
| t | time |
| tid | ter in die, 3 times each day |
| ut dict | ut dictum, as directed |
| vid | see |
| W | weight |
| w/ | with |
| x | unknown factor |