| Abbreviation |
Full Form |
Latin/Base Language |
| mg | Milligram | - |
| mL | Milliliter | - |
| g | Gram | - |
| mcg | Microgram | - |
| q.d. | Once daily | Quaque die (Latin) |
| b.i.d. | Twice a day | Bis in die (Latin) |
| t.i.d. | Three times a day | Ter in die (Latin) |
| q.i.d. | Four times a day | Quater in die (Latin) |
| PRN | As needed | Pro re nata (Latin) |
| q.h. | Every hour | Quaque hora (Latin) |
| stat | Immediately | Statim (Latin) |
| ac | Before meals | Ante cibum (Latin) |
| pc | After meals | Post cibum (Latin) |
| hs | At bedtime | Hora somni (Latin) |
| od | Right eye | Oculus dexter (Latin) |
| os | Left eye | Oculus sinister (Latin) |
| po | By mouth | Per os (Latin) |
| SL | Sublingual | Sub lingua (Latin) |
| IM | Intramuscular | - |
| IV | Intravenous | - |
| SC | Subcutaneous | - |
| q2h | Every 2 hours | Quaque 2 hora (Latin) |
| q3h | Every 3 hours | Quaque 3 hora (Latin) |
| q4h | Every 4 hours | Quaque 4 hora (Latin) |
| q6h | Every 6 hours | Quaque 6 hora (Latin) |
| q8h | Every 8 hours | Quaque 8 hora (Latin) |
| q12h | Every 12 hours | Quaque 12 hora (Latin) |
| bid | Twice a day | Bis in die (Latin) |
| tid | Three times a day | Ter in die (Latin) |
| qid | Four times a day | Quater in die (Latin) |
| qam | Every morning | Quaque ante meridiem (Latin) |
| qpm | Every evening | Quaque post meridiem (Latin) |
| pr | Per rectum | - |
| top | Topical | - |
| ung | Ointment | Unguentum (Latin) |
| supp | Suppository | Suppositorium (Latin) |
| tab | Tablet | Tabella (Latin) |
| cap | Capsule | Capsula (Latin) |
| susp | Suspension | - |
| elix | Elixir | - |
| gtt | Drop | Gutta (Latin) |
| neb | Nebulizer | - |
| mEq | Milliequivalent | - |
| qs | Sufficient quantity | Quantum satis (Latin) |
| aa | Of each | Ana (Latin) |
| ad | Up to | Ad (Latin) |
| amt | Amount | - |
| c | With | Cum (Latin) |
| s | Without | Sine (Latin) |
| pc | After meals | Post cibum (Latin) |
| ac | Before meals | Ante cibum (Latin) |
| dil | Dilute | Diluere (Latin) |
| disp | Dispense | Dispensare (Latin) |
| qs ad | Quantity sufficient to make | Quantum satis ad (Latin) |
| OD | Once daily | Omni die (Latin) |
| OM | In the morning | Omne mane (Latin) |
| ON | At night | Omni nocte (Latin) |
| HS | At bedtime | Hora somni (Latin) |
| ad lib | As desired | Ad libitum (Latin) |
| NPO | Nothing by mouth | Nil per os (Latin) |
| g | Gram | - |
| IU | International Unit | - |
| U | Unit | - |
| cc | Cubic centimeter | - |
| qs | Quantity sufficient | Quantum satis (Latin) |
| qd | Every day | Quaque die (Latin) |
| AU | Both ears | Auris utraque (Latin) |
| OU | Both eyes | Oculus uterque (Latin) |
| ad | Right ear | Auris dextra (Latin) |
| ad | Right ear | Auris dextra (Latin) |
| as | Left ear | Auris sinistra (Latin) |
| au | Both ears | Auris utraque (Latin) |
| od | Right eye | Oculus dexter (Latin) |
| os | Left eye | Oculus sinister (Latin) |
| ou | Both eyes | Oculus uterque (Latin) |
| qhs | Every night at bedtime | Quaque hora somni (Latin) |
| DC | Discontinue | - |
| d/c | Discontinue | - |
| sig | Label/write | Signa (Latin) |
| ivp | Intravenous push | - |
| NS | Normal Saline | - |
| D5W | Dextrose 5% in water | - |
| LR | Lactated Ringer's | - |
| DW | Dextrose in water | - |
| BP | Blood pressure | - |
| OOB | Out of bed | - |
| cath | Catheter | - |
| CNS | Central nervous system | - |
| UTI | Urinary tract infection | - |
| NSAID | Nonsteroidal anti-inflammatory drug | - |
| IVPB | Intravenous piggyback | - |
| tsp | Teaspoon | - |
| tbsp | Tablespoon | - |
| vol | Volume | - |
| sol | Solution | - |
| liq | Liquid | - |
| syr | Syrup | - |
| tsp | Teaspoon | - |
| tbsp | Tablespoon | - |
| AA | Of each | Ana (Latin) |
| qs | Quantity sufficient | Quantum satis (Latin) |
| IV bolus | Intravenous bolus | - |
| ICU | Intensive care unit | - |
| OR | Operating room | - |
| ER | Emergency room | - |