Abbreviation
| Meaning
|
alt |
Alternating |
bid |
Twice a day or twice daily |
biw |
Twice weekly |
cid |
Five times a day |
hs |
Bedtime |
q |
Every |
q12h |
Every 12 hours |
q24h |
Every 24 hours |
q4-6h |
Every 4-6 hours |
q4h |
Every 4 hours |
q6h |
Every 6 hours |
q8h |
Every 8 hours |
qam |
Every morning or daily in the morning |
qd |
Daily or once daily (“daily” or “once daily” is preferred to qd) |
qhs |
Bedtime or daily at bedtime (“night” or “daily at bedtime” is preferred to qhs) |
qid |
Four times a day |
q5min |
Every 5 minutes |
qOd |
Every other day (“every other day” is preferred to qOd) |
qpm |
Every evening or daily in the evening |
q week |
Once weekly |
tid |
Three times daily |
tiw |
Three times weekly (“three times weekly” is preferred to tiw) |