No, qid is not in the scrabble dictionary.

Is there a word Qid?

(pharmacology) Four times a day.

What does QID mean?

q.i.d. (on prescription): Seen on a prescription, q.i.d. (or qid) means 4 times a day (from the Latin quater in die). The abbreviation q.i.d. is also sometimes written without a period in capital letters as "QID".