According to the Cleveland Clinic web site, "Antihistamines help relieve symptoms by blocking the action of histamine. Histamine is a naturally occurring substance that is released by the immune...
Lorazepam is a benzodiazepine drug with multiple effects: sedative, anticonvulsive, antianxiety, hypnotic, and anticonvulsant. Introduced in 1971, it is most often used to treat anxiety and is widely...