Valium is a benzodiazepine that works to enhance the effects of the neurotransmitter GABA (Gamma-aminobutyric acid), which works to reduce the state of excitation in the body that causes anxiety. It works by calming the mind and nerves. Valium is used to treat anxiety disorders and to alleviate symptoms of anxiety. Valium appears to be useful in the treatment of symptomatic relief of acute agitation, impending delirium tremens, and tremors in cases of alcohol withdrawal.