Apr 5, - Alprazolam (Xanax®) versus Lorazepam (Ativan®) Alprazolam vs Lorazepam for Sleep and Insomnia. Both alprazolam and lorazepam are. Mar 31, - Lorazepam and Xanax are both benzodiazepines that provide a If you feel lightheaded or sleepy after taking either of these drugs, don't drive Uses · Side effects · Dosage. Jun 11, - 3 Answers - Posted in: xanax, anxiety, insomnia, lorazepam - Answer: HI Leen- Neither are really that good for insomnia. They are Is Ativan milder than Xanax? Does anyone know?