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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”. Is QD a scrabble word? No, qd is not in the scrabble dictionary. WhatRead More →

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The usual dosage for ulcer treatment is four times daily on an empty stomach (at least an hour before food and at bedtime). Take as directed by your doctor. Continue for the duration recommended or until x-ray or endoscopic exam confirms ulcer healing. Do you have to take antibiotics exactlyRead More →