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Frequency
Pharmacy SIG Codes and Terminology
Term | Definition |
---|---|
ac | Before meals |
am | Morning |
atc | Around the clock |
bid | Twice a day |
h | Hour |
hs | At bedtime |
pc | After food or after meals |
pm | Afternoon or evening |
prn | As needed |
q | each or every |
q10h | Every ten hours |
q12h | Every twelve hours |
q2h | Every two hours |
q4h | Every four hours |
q6h | Every six hours |
q8h | Every eight hours |
qd | Every day |
qh | Every hour |
qid | Four times a day |
qod | Every other day |
Stat. | Immediately |
tid | Three times a day |
prf | as needed for |
swag | Shake well and give |
swat | Shake well and take |