Adverse effects of homeopathy: a systematic review of published case reports and case series

Abstract

Summary Aim: The aim of this systematic review was to critically evaluate the evidence regarding the adverse effects (AEs) of homeopathy. Method: Five electronic databases were searched to identify all relevant case reports and case series. Results: In total, 38 primary reports met our inclusion criteria. Of those, 30 pertained to direct AEs of homeopathic remedies; and eight were related to AEs caused by the substitution of conventional medicine with homeopathy. The total number of patients who experienced AEs of homeopathy amounted to 1159. Overall, AEs ranged from mild‐to‐severe and included four fatalities. The most common AEs were allergic reactions and intoxications. Rhus toxidendron was the most frequently implicated homeopathic remedy. Conclusion: Homeopathy has the potential to harm patients and consumers in both direct and indirect ways. Clinicians should be aware of its risks and advise their patients accordingly.

The Effects of Cool Dialysate on Pruritus Status During Hemodialysis of Patients With Chronic Renal Failure: A Controlled Randomized Clinical Trial

“…The results of Curcani and Tan study confirmed its effect on uremic pruritus (16), whereas the systematic review by Posadzki et al reported mild to severe adverse effects of aromatherapy, with dermatitis mentioned as the most common side effect. Mortality was reported in another study (17). In contrast, no allergic reactions or deaths have been reported thus far with the use of cool dialysate.…”

Homeopathy: Curative, Concurrent and Supportive Cancer Treatment Potential

“…Clearly, numerous homeopathic treatments use known poisonous plant and animal sources [38]. Consistent with this, ultramolecular preparations are necessary for patient's safety [38,39]. Hence it is biologically plausible that ultramolecular, non-succussed preparations are sufficient to produce cellular response, as indicated from in vitro studies of Arsenicum album 6CH, 30Ch, and 200CH on the MT4 continuous cell line [40].…”

“…Homeopathic treatments containing allergenic conventional medications without disclosure to the consumer have been voluntarily withdrawn from the United States market [37]. Clearly, numerous homeopathic treatments use known poisonous plant and animal sources [38]. Consistent with this, ultramolecular preparations are necessary for patient's safety [38,39].…”

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