Ativan is an anticonvulsant that belongs to the benzodiazepine class of drugs. Ativan is most commonly used to treat anxiety and insomnia; it slows brain activity and acts on brain nerves to produce a calming effect. The active ingredient in Ativan is lorazepam, which is also available as a generic medication. Buy Ativan Online relieves anxiety symptoms such as nervousness, excessive sweating, trembling, weakness, or lack of concentration, and it is also used for short-term relief of anxiety symptoms.