Upon receiving his diploma, he returned to Greece where he practiced and began teaching classical homeopathy to a small group of medical doctors.
His alleged therapeutic success drew attention and led to the establishment in 1970 of what eventually became the Center of Homeopathic Medicine in Athens, a school exclusively for M.D.s.
He criticised Vithoulkas for substituting assertion for hard evidence and constructing an almost meaningless argument on the basis of a dubious theory of disease.
He described rhetoric put forward by Vithoulkas (in presenting the argument that "allopathic drugging" is harmful and must be avoided) as including a thoroughly irresponsible statement which could mislead an unfortunate layman into refusing orthodox treatment, mentioning Vithoulkas' claim, "in the course of an argument designed to show that 'allopathic drugging' is harmful and must be avoided", that syphilis, when treated with antibiotics, would have the early stages suppressed, but would go on to the secondary and tertiary stages.
[16] In response, Vithoulkas quoted various medical studies he claimed supported his assertion that penicillin "may suppress primary syphilis while failing to prevent the insidious development of a tertiary stage, especially as manifested in psychosis.