Surge in Ivermectin Prescriptions Among Cancer Patients Raises Concerns
Introduction
Recent research has highlighted a significant increase in the prescription of ivermectin and another antiparasitic medication among cancer patients. This surge follows an endorsement of these drugs by actor Mel Gibson during his appearance on a popular podcast hosted by Joe Rogan. A study published in JAMA Network Open has drawn attention to the impact of celebrity health endorsements and the risks associated with patients opting for unverified treatments over established medical practices.
Prescription Trends Among Cancer Patients
Cancer patients saw a 2.5-fold rise in prescriptions
The study analyzed electronic health records from over 68 million individuals across 67 healthcare systems in the United States. Researchers monitored the prescribing trends for ivermectin and benzimidazole drugs before and after Gibson's podcast appearance in January 2025. Findings revealed that prescriptions for these medications doubled in the general population compared to the previous year. Notably, among cancer patients, the prescribing rate increased by 2.5 times, particularly among white patients, men, and those residing in the southern United States. This spike coincided with Gibson's claims that ivermectin, when combined with benzimidazole, had cured cancer in several acquaintances. The podcast episode reportedly garnered over 60 million views within a month.
The Efficacy of Ivermectin in Cancer Treatment
Is ivermectin proven to treat cancer?
Despite the rising discussions online, experts emphasize that there is no clinical evidence supporting the use of ivermectin or benzimidazole as safe or effective cancer treatments in humans. Some laboratory and animal studies suggest these drugs may exhibit anti-cancer properties under controlled conditions. However, scientists caution that the dosages needed to achieve even minimal effects could be toxic to humans. Additionally, there are concerns that these medications might interfere with chemotherapy, immunotherapy, or other cancer treatments. Experts strongly advise cancer patients against substituting or halting their medically approved treatment plans in favor of unverified alternatives promoted online.
Concerns Among Medical Professionals
Why are doctors and researchers concerned?
Health researchers indicate that the study illustrates how celebrity influence can significantly affect medical decisions, particularly among vulnerable patients seeking hope. Dr. Michelle Rockwell, a health services researcher at Virginia Tech, noted that clinicians are increasingly pressured by patients requesting medications they have seen promoted online. "Clinicians express the challenges they face when patients demand or inquire about a medication they believe might help," she stated in an interview. Social scientists also highlight that distrust in the healthcare system, rising medical expenses, and frustrations with insurance barriers make some patients more susceptible to misinformation and alternative treatment claims. Researchers were unable to ascertain whether patients were using ivermectin alongside conventional cancer treatments or as a replacement, a distinction that carries significant public health implications.
Ivermectin's Previous Controversies
Ivermectin and the COVID-19 controversy
This is not the first instance of ivermectin sparking controversy. During the COVID-19 pandemic, the drug was widely discussed as a potential treatment, despite numerous clinical trials concluding that it did not significantly reduce severe illness, hospitalization, or recovery time. Health authorities also linked misinformation regarding ivermectin to a rise in overdose calls to poison control centers in 2021.
Validated Cancer Treatments
Proven and successful cancer treatments
Medical professionals stress that established cancer treatments such as chemotherapy, radiation therapy, immunotherapy, targeted therapy, hormone therapy, and surgery remain the safest and most scientifically validated options for patients. These treatments undergo extensive clinical trials to verify their safety, efficacy, and long-term outcomes before public approval. Modern cancer care is increasingly personalized, with physicians customizing therapies based on tumor type, genetics, and disease stage. Experts warn that delaying or replacing evidence-based treatments with unproven alternatives can diminish survival rates and allow cancer to progress. Patients are strongly encouraged to consult qualified oncologists about any complementary therapies before use.