A controlled (scheduled) drug is one whose use and distribution is tightly No.3), paregoric, diazepam (Valium®), alprazolam (Xanax®), propoxyphene. Apr 12, - Ativan is one of several easily recognizable drugs in the collection of sedatives Ativan (lorazepam) taper schedules have two competitive Patients who have attempted an Ativan detox before may benefit more from a swifter cutback, say, 25 percent instead. Week 2: Ativan dose lowered by 25 percent. This is the list of Schedule IV drugs as defined by the United States Controlled Substances Act. The following findings are required for drugs to be placed in this schedule: The drug or other substance has a low potential for abuse relative to the drugs or other substances in schedule III. 1 Narcotics; 2 Depressants; 3 Fenfluramine; 4 Lorcaserin; 5 Stimulants Missing: protocol.