Valium 5 mg is a schedule 4 controlled substance. This drug is approved by the FDA in 1963. Valium is a brand name of Diazepam. It belongs to the benzodiazepine drug class. Valium (diazepam) is an effective, durable benzodiazepine that is frequently recommended to treat anxiety problems. Only anyone with a prescription can get it. You are able to get Valium online with a prescription.