The half life is 1 to 2 1/2 hours in normal patients. This means after about 2 hours half of the medicine is still left in your system.
anywhere from 24-72 hours, depending on your metabolism and how much you take. Therapudic dose could take as less as 48 hoursHow long can a tapeworm be inside you and could I have one?
2-3 daysNon-Opiated Painkillers