| Abbreviation | Definition |
|---|---|
| q.d.,q1d | quaque die - every day |
| q.d.s. | quater die sumendus - four times a day |
| q.h. | quaque hora - every hour |
| q.h.s. | quaque hora somni - every night at bedtime |
| q.i.d. | quattuor in die - four times a day |
| q.o.d. | every other day |
| q.p.m. | quaque die post meridiem - every day after noon |
| q.s. | quantum sufficiat - a sufficient quantity |
| Q12H | Every 12 Hours |
| Q24H | Every 24 Hours |
| q4PM | at 4pm |
| QAD | Quaque Alternis Die (every other day) |
| QAM | Quaque Ante Meridiem (each morning) |
| QD | every day (Lat.: quaque die) |
| QD | Four times a Day |
| QD | Four Times Daily |
| QOD | Every Other Day |
| QPM | Quaque Post Meridiem (each evening) |
| QPM | Quaque Post Meridiem (each evening) |
| QQH | Quater Quaque Hora (every four hours) |