q.d. (qd or QD) is once a day; q.d. stands for "quaque die" (which means, in Latin, once a day).

What is the medical term for daily?

q.a.m., qAM, qam. every morning. quaque ante meridiem. q.d., qd. every day / daily.

What is QD in medical abbreviation?

Q.D. Latin abbreviation for every day. The period after the "Q" has sometimes been mistaken for an " I, " and the drug has been given "QID" (four times daily) rather than daily. Q.O.D. Latin abbreviation for every other day.