Eight claims made by people who promote, prescribe or sell ivermectin outside its approved uses — what the evidence shows, and what regulators, boards and courts have done about it.
| # | The claim | What the evidence shows | Legal / regulatory action | Sources |
|---|---|---|---|---|
| 1 | "Ivermectin cures and prevents COVID-19."FLCCC protocols, telehealth sellers, online pharmacies | Large placebo-controlled trials found no benefit. TOGETHER (Brazil, NEJM 2022): ivermectin did not cut hospitalization. ACTIV-6 (US, JAMA 2023): even the maximum targeted dose, 600 µg/kg for 6 days, gave a median recovery of 11 days in both arms. The 2022 Cochrane update (11 trials, 3,409 people) found no evidence for treatment or prevention. | FDA warning letters to online sellers, e.g. ivermectin4covid.com (Mar 2023) and rxmedkart.com ("Ziverdo kit", 2021). Health Canada advisory (Aug 2021, updated) and orders to remove non-compliant Canadian ads. Australia (TGA): fined a NSW individual $7,992 for advertising ivermectin for COVID; cease-and-desist notices to six medical practices. | |
| 2 | "Dozens of studies and meta-analyses prove it works."ivmmeta-style "87% of trials positive" tallies | The single largest positive trial, Elgazzar et al. (Egypt, claimed ~90% fewer deaths), was withdrawn by Research Square in July 2021 after plagiarism and data anomalies were exposed. Removing it reverses the conclusions of most positive meta-analyses. Cochrane excluded 7 of the 14 trials in its earlier review on research-integrity grounds. | No legal action. Preprint withdrawn by the server; meta-analyses corrected (e.g. Cruciani et al., Diagnostics 2021 correction). | |
| 3 | "Japan's Kowa proved it works against Omicron in a Phase III trial." | Reuters corrected its Jan 2022 story: Kowa's "antiviral effect" came from non-clinical lab research, not a Phase III trial. When Kowa's actual clinical trial reported (Sept–Oct 2022), ivermectin was not effective, and Kowa dropped its bid for COVID approval. Japan never approved it for COVID. | None — a misreported press release. |
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| 4 | "It's a Nobel-prize drug — totally safe, even the horse paste." | Ivermectin is safe at approved antiparasitic doses. Veterinary pour-on, paste and injectable products are far more concentrated; poison-control calls and ER visits rose in 2021. Health Canada lists vomiting, low blood pressure, seizures, coma and death among the risks of veterinary ivermectin. Delay of effective COVID care is an added harm. | FDA asked veterinarians and farm retailers to discourage human use (Sept 2021). TGA restricted GP prescribing (Sept 2021 – May 2023). Counter-suit by promoters: Apter, Bowden & Marik v. FDA settled March 2024 — FDA removed its "You are not a horse" posts but did not change its position that the data don't show ivermectin works for COVID. | |
| 5 | "Ivermectin (with fenbendazole) cures stage 4 cancer."Popularized by Mel Gibson on Joe Rogan, Jan 2025 | Evidence is limited to cell-culture and animal work. There are no large randomized trials in people; in the one small study of 8 patients, only one showed shrinkage — while also on proven therapy. Macmillan Cancer Support: zero real-world clinical evidence. The NCI's 2026 preclinical study is a lab project, not evidence of benefit. | No enforcement action found against cancer-cure promoters to date. | |
| 6 | "Ivermectin detoxes vaccine spike protein."World Council for Health and similar "detox" protocols | There is no evidence that vaccine spike protein lingers or is toxic, and no evidence that ivermectin, hydroxychloroquine or "detox" supplements remove it. KFF tracked a 2025 surge in online "detox" product marketing built on this claim. | No enforcement action found. | |
| 7 | "Our doctors are credentialed experts, persecuted for telling the truth." | Regulators who heard the evidence found false or misleading public statements and substandard prescribing — not persecution. Findings were made after hearings, and appeals have so far failed. | ABIM revoked board certification of Pierre Kory and Paul Marik (FLCCC) as of 8 Aug 2024, and of Peter McCullough. Washington Medical Commission (Jan 2024): Ryan Cole barred 5 years from primary care and prescribing in WA, $5,000 fine, after prescribing ivermectin by telehealth to 4 patients; Idaho board adopted the order (May 2025). CPSO (Jan 2024): Mark Trozzi's licence revoked; revocation upheld on appeal. | |
| 8 | "Get it from our doctors by phone — $90 consult."America's Frontline Doctors / SpeakWithAnMD; Canadian telehealth copies | Hacked data showed AFLDS referred about 255,000 people to SpeakWithAnMD in under two months (July–Sept 2021), averaging ~$113,000 a day in consult fees; many paid and never got a call. In Canada, Global News reported (Jan 2022) that an Ontario doctor barred from prescribing ivermectin launched a telehealth service offering it. | US House Select Subcommittee on the Coronavirus Crisis opened an investigation of AFLDS and SpeakWithAnMD (Oct 2021). CPSO imposed prescribing restrictions on several Ontario physicians over COVID conduct (2021–22). |
Sources current as of 27 October 2026. Legal and disciplinary statuses can change on appeal. A shareable image version of this table is available: qw-ivermectin-claims-vs-facts.png.
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