Medscape - Anxiety, status epilepticus, sedation-specific dosing for Ativan, IV/IM (prolonged periods or high doses): Monitor; risk of propylene glycol toxicity. The drug Ativan, also known as lorazepam, belongs to a class of drugs known as benzodiazepines and is used primarily as a short-term treatment for anxiety or Missing: table ?lamps. What is lorazepam (Ativan)?; What are the possible side effects of lorazepam hyperactivity, agitation, hostility;; hallucinations; or; feeling light-headed, fainting. lorazepam with a special dose-measuring spoon or cup, not a regular table spoon. Overdose symptoms may include extreme drowsiness, confusion, muscle.