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Ch 1
Pharmacological Abbreviations
| Question | Answer |
|---|---|
| qd | once a day (quaque die) |
| bid | twice a day (bis in die) |
| tid | 3 times a day (ter in die) |
| qid | 4 times a day (quarter in die) |
| pc | after meals (post cebum) |
| ac | before meals (ante cebum) |
| po | by mouth (per os) |
| prn | as needed (pre re nata) |
| hs | at bedtime (hora somni) |