He completed his training at Lincoln Memorial Hospital Recovery Centre in South Bronx New York, the original clinic that pioneered the 5 point NADA Acudetox protocol. He brought back Acudetox to South Africa and also trains people who wish to become specialists. Warren is also the C.E.O. The Addiction Action Campaign, a formidable  public advocacy group which represents the rights of all South Africans on the issue of addiction and substance abuse, and he is the founder and Chairperson of the National Acupuncture Detoxification Association of South Africa (NADA S.A.)