Valium is mainly used to treat anxiety disorders, seizures (fits) as well as muscle spasms or twitches. This medication is also known by its generic name, Diazepam, which belongs to the Benzodiazepines class of drugs. This medication helps to control overactivity and calms the nerves in the brain to treat anxiety. It also has sedative effects that help to treat muscle spasms. This is FDA-approved and is recommended to be used only by a doctor.