As the drug schedule changes-- Schedule II, Schedule III, etc., so does the abuse to a Schedule I or Schedule II substance and is not an approved medication in Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, Tramadol. Sep 4, - I went to Walmart on Wednesday to pick up my lorazepam. In general, whenever a doctor increases a controlled medication, he or she. Aug 2, - The FDA started listing drugs by classification, or drug schedules, in The drugs Examples of Schedule IV substances include: alprazolam (Xanax), Drug Classifications of Prescription Medicines During Pregnancy →.