Homeopathic use of modern drugs: therapeutic application of the organism paradoxical reaction or rebound effect


  • Marcus Zulian Teixeira School of Medicine, University of São Paulo, São Paulo, Brazil


Homeopathy, Mechanism of Action of Homeopathic Medicines, Pharmacodynamic Action of Homeopathic Medicines, Homeopathic Medicines, New, Secondary Effect, Rebound Effect, Paradoxical Reaction.


When Samuel Hahnemann systematized homeopathy and the effects of drugs on the state of human health, he described the primary action of drugs and the following secondary and opposite reaction of the organism. Seeking to apply this secondary action or vital reaction of the organism as therapeutic method, he postulated the principle of similitude, i.e. the prescription to ill individuals of drugs that cause similar symptoms in the healthy (similia similibus curentur). In modern pharmacology, secondary action (vital reaction) of drugs is known as rebound effect or paradoxical reaction of the organism. It has been observed after discontinuation of several classes of palliative (enantiopathic) drugs, namely those that act according to the principle of contraries (contraria contrariis curentur). Although in this case it is associated with severe and fatal iatrogenic events, rebound effect might awaken a healing reaction when the very same drug is employed according to the principle of similitude. The validity of the principle of similitude is proved by scientific evidence on rebound effect, whereas conventional drugs primary (therapeutic, adverse and side) effects might be equated to pathogenetic manifestations and thus be homeopathically applied. For this purpose a homeopathic materia medica and repertory comprising 1,251 modern drugs was elaborated using the monographs described in The United States Pharmacopeia Dispensing Information as source (www.newhomeopathicmedicines.com). Thus, the therapeutic range of homeopathy is broadened through the addition of hundreds of new medicines that might be employed in every kind of disease including countless modern clinical syndromes.

Author Biography

Marcus Zulian Teixeira, School of Medicine, University of São Paulo, São Paulo, Brazil

Department of Internal Medicine






Clinical Research

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