which is stronger lorazepam or alprazolam
3 doctors agreed: Ativan vs Xanax: Both Ativan (lorazepam) and xanax (alprazolam) are benzodiazepine tranquilizers. The main differences clinically are that Ativan is longer-acting and slightly more sedating than xanax. Most agree that xanax is more potent than Ativan on a milligram-for-milligram basis, and probably more addictive.