Ativan 2mg: Uses, Benefits, Dosage, Side Effects, and Precautions Ativan 2mg, also known as lorazepam, is a prescribed medication that is extensively used to treat panic disorders, anxiety disorders, seizures and insomnia. A potent benzodiazepine with a quick-acting, short-acting profile, Ativan helps calm the nervous system by acting on gamma-aminobutyric acid (GABA), a neurotransmitter that...