Valium (diazepam) is a medication belonging to the drug class benzodiazepine. Valium is available as a generic drug. Valium is prescribed for the treatment of anxiety, seizures, muscle spasms, and symptoms of alcohol withdrawal.alium usual oral dose is 2-10 mg given 2-4 times daily. Drug interactions with Valium include alcohol, barbiturates, and narcotics, cimetidine (Tagamet), ketoconazole (Nizoral), omeprazole (Prilosec) fluvoxamine (Luvox), and fluoxetine (Prozac).