The approximate equivalent doses to 10mg diazepam (Valium) are given. For a discussion of half-lives and equivalencies see also the Benzo FAQ document. Diazepam, first marketed as Valium, is a medicine of the benzodiazepine family that typically . Diazepam in doses of 5 mg or more causes significant deterioration in alertness Equal prudence should be used whether dependence has occurred in therapeutic or . The distribution half-life of diazepam is two to 13 minutes. The generic name for valium is diazepam and xanax is alprazolam. Valium also has a considerably longer half-life. Tablets can be 2mg, 5mg or 10mg.