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Drug abbreviations
The most common used abbreviations in pharmacies
| Term | Definition |
|---|---|
| tab | Tablet |
| cap | Capsule |
| qd | Every day |
| bid | Twice a day/Every 12 hours |
| tid | Three times a day/Every 8 hours |
| qid | Four times a day/Every 6 hours |
| ad | Right ear |
| ou | Both eyes |
| os | Left eye |
| od | Right eye |
| hs | Bedtime |
| ac | Before meals |
| q | Every |
| sig | Signa |
| ud | As directed |
| po | By mouth |
| susp | Suspension |
| au | Both ears |
| as | Left ear |
| gtt | Drops |
| am | Morning |
| pm | Evening |
| prn | As needed |
| qs | Quantify sufficient (enough) |
| pc | After meals |