The ASAP Dictionary of Anxiety and Panic Disorders
Q

QD - once a day. Prescription direction based on the Latin phrase "quaque die." Also see dose.

QID - four times a day. Prescription direction based on the Latin phrase "quarter in die." Also see dose.

Quack - any dishonest or irresponsible clinician.

Quotidian - occurring daily.

The ASAP Dictionary of Anxiety and Panic Disorders