Is there any hard evidence in support of homeopathic remedies for ADHD?

According to Vox, “Homeopathy is a $1.2 billion industry in the US alone, used by an estimated 5 million adults and 1 million kids. It’s become such a staple of America’s wellness industry that leading brands such as Boiron and Hyland’s are readily available at high-end health-focused chains like Whole Foods and sprouts, supermarkets like Ralph's, and superstores such as Walmart.”

Yet, this highly profitable “wellness” industry has shown little to no interest in supporting randomized clinical trials (RCTs) to test the efficacy and safety of its products.

In a team of Italian physicians, Rana comprehensive search of the medical literature and found only nine RCTs exploring the efficacy and safety of homeopathic remedies for psychiatric disorders that met the selection criteria.

Only two of these RCTs addressed efficacy for ADHD, with a combined 99 participants. Neither reported any significant effect.

Combining them into a small meta-analysis likewise found no significant effect.

But that’s not all. According to the study authors, “The paucity of published trials does not allow a reliable estimate of publication bias, which would require a larger number of studies. This is a major issue since it has been reported that, among completed trials of homeopathy registered on, only 46% were published within 2 years of completion, and among these, 25% altered or changed their primary outcomes. It is, therefore, possible that the results of the present meta-analysis are distorted because of selective publication.”

The authors conclude, “The most surprising result of this meta-analysis is the paucity of available data from RCTs,” and “Based on the very few available trials, homeopathy did not produce any relevant effect on symptoms of ADHD … Ethical considerations should therefore prevent clinicians from recommending HRs [homeopathic remedies], which have a cost either for patients or for health care systems, until when a sufficient amount of solid evidence becomes available.”

Francesco Rotella,  Ph.D., MD, Emanuele Cassioli, MD, Andrea Falone, MD, Valdo Ricca, MD, andEdoardoMannucci, MD, “Homeopathic Remedies in Psychiatric Disorders: Aneta-analysis of Randomized Controlled Trials,” Journal of clinical psychopharmacology (2020),40 (3) 269-275,
Stephie Grob Plante,““It's just a big illusion”: How homeopathy went from fringe medicine to the grocery aisles,” Vox, Updated October 23, 2019.