Ativan 2 mg Tablet contains lorazepam, a medicine that belongs to a group called benzodiazepines. It is mainly used to treat anxiety disorders and to provide short-term relief from severe anxiety symptoms. Doctors may also prescribe it for insomnia (sleeplessness) caused by anxiety, agitation, or to help patients relax before certain medical procedures. Lorazepam works by calming activity in the brain and nervous system, which helps reduce feelings of fear, tension, and restlessness. The medicine usually starts working within a short time, but it is generally recommended only for short-term use because prolonged use can lead to dependence or withdrawal symptoms. Common side effects include drowsiness, dizziness, weakness and difficulty concentrating. You should take Ativan 2 mg Tablet exactly as prescribed and avoid alcohol or driving if you feel sleepy after taking the medicine.