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Abbreviations 2
time or frequency of administration
| Term | Definition |
|---|---|
| ac | before food or meals |
| AM | morning |
| ad lib | as often as needed, freely |
| ASAP | as soon as possible |
| atc | around the clock |
| bid | twice daily |
| c | with |
| h, hr, or o | hour, at the hour of |
| hs | at bedtime |
| noc | night |
| p | after |
| pc | after food or meals |
| pc & hs | after meals and at bedtime |
| PM | in the afternoon or evening |
| prn | as needed |
| Q | each or every |
| q4h | every 4 hours |
| qd | everyday |
| qh | every hour |
| qhs | every bedtime |
| qid | 4 times daily |
| qod | every other day |
| s | without |
| stat | at once or immediately |
| tid | three times daily |
| UD or ut dict | as directed |
| wk | weekly |