What Does QD BID And TID Mean On A Prescription?
t.i.d. (on prescription): Seen on a prescription, t.i.d. means three times a day. q.d. (qd or QD) is once a day; q.d. stands for “quaque die” (which means, in Latin, once a day). b.i.d. (or bid or BID) is two times a day; b.i.d. stands for “bis in die” (inRead More →