Buy Ativan (Lorazepam) Online and Get Relief. Ativan (lorazepam) is a drug used to treat anxiety disorders, sleeplessness, and seizures. It belongs to the benzodiazepine drug class, which works by increasing the effects of GABA, a neurotransmitter in the brain. This relaxes the neurological system and relieves symptoms of anxiety and insomnia. Ativan is available in both brand name and generic versions, and it can be acquired online with a valid prescription. Online pharmacies allow you to order Ativan from the comfort of your own home, and they frequently offer better prices than traditional brick and store pharmacies.