Start Dose in Milligrams End Dose in Milligrams Your schedule will appear here. Advanced Settings Taper Percent Decimal Precision Style the output Instructions Enter your starting dosage and desired end dosage. The calculator will produce a schedule of decreasing dosages for your taper at 10% decrease per step, calculated on the last dosage. Each increment - 1, 2, 3 etc. - is a dose level, which should be held-at for a period, usually of 3 to 4 weeks. For a rate of taper less than 10%, change Advanced Settings. If measuring out to decimal places is not possible, round up on the dosage.