Homotoxicology is a branch of Homeopathy pioneered by a German physician, Dr. Reckweg, in 1952. Whereas Classical Homeopathy usually works with single remedies, Homotoxicology is a branch of Homeopathy which uses multiple remedies and pursues an indication-oriented or specific problem approach. Another difference is that Homotoxicology deals with low to medium potencies whereas Classical Homeopathy deals with extreme dilutions of a substance.