Definition of Antineoplaston

Antineoplaston (ANP) is a name used by Stanislaw Burzynski for a group of chemical compounds and mixtures for which he claims anti-cancer activity. These compounds have been sold and administered by Burzynski to cancer patients since 1986; clinical efficacy has not been demonstrated and several fatal side effects have occurred. The practice is considered quackery by critics. Burzynski maintains corporate offices and operates a clinic in Houston, Texas where he treats patients with antineoplastons. At a nearby facility in Stafford, Texas he conducts research and manufactures the pharmaceutical ingredients used in the medications and other products that he produces.