quater in die, qid, q.i.d, or QID is Latin for four times a day. Quater is latin for four. This term is use in prescriptions to mean take the medicine four times a day.
quater in die, qid, q.i.d, or QID is Latin for four times a day. Quater is latin for four. This term is use in prescriptions to mean take the medicine four times a day.