Mar 10, - What are the possible side effects of lorazepam (Ativan)? . Withdrawal symptoms (e.g., rebound insomnia) can appear following cessation of. Aug 11, - Read about the signs and symptoms of Ativan withdrawal and how to cope with it. Learn what types of treatment options are available for Ativan. Benzodiazepine withdrawal syndrome often abbreviated to benzo withdrawal is the cluster Withdrawal effects caused by sedative-hypnotics discontinuation, such as . bankruptcy, committal to a hospital, and the most serious adverse effect, .. Effects of lorazepam and its withdrawal on sleep, performance, and.