Lorazepam and antacidsLearn about how to safely take over-the-counter antacids and acid reducers. - 183 days ago at 10:13pm on Sep 25 . . Ativan (lorazepam) is a benzodiazepine (a group of sedatives such as Ativan, Valium . . Sparfloxacin is a broad-spectrum oral fluoroquinolone antimicrobial agent with a long elimination half-life·Separate doses of an antacid and Lorazepam by several hours whenever possible. How Aspirin, Ibuprofen and Antacids Affect Your BloodThe drug Lorazepan is marketed ... more