Abstract: Process for calculating decreasing doses of a drug a patient needs to take to be able to finally stop taking the drug algorithm. The process is based on an exponential drug taper. This is particularly useful for a drug which a patient is either physically or psychologically dependent, and for a drug where there are potentially serious side effects (for example, seizures) if the drug is rapidly discontinued. The program calculates the amount of drug and provides the clinician the opportunity to look at several different possible drug taper schedules, both numerically and graphically, and to aid the clinician in choosing the appropriate drug taper. The process can calculate a drug taper based upon actual clinical response of a patient. The process corrects for actual dosage sizes available, and calculates administration schedules for the patient and nurse.