Fenbendazole and Ivermectin for Advanced Terminal Cancer: We Asked ChatGPT (2025)

Since experts are so often wrong, we figured it wouldn't be a bad idea to put Big Tech's trillion-dollar baby to work and ask ChatGPT.

We queried ChatGPT on this subject, and the following is what we found.


Is fenbendazole ​approved‌ for human use?

ChatGPT:

Fenbendazole is not approved for human use as a medication. It is an antiparasitic drug primarily used in veterinary medicine to treat parasitic infections in animals such as dogs, cats, horses, and livestock.

Regulatory Status:

  1. Veterinary Use:

    • Fenbendazole is widely approved and marketed under various brand names (e.g., Panacur, Safe-Guard) for deworming animals.
    • It is effective against a range of parasites, including roundworms, hookworms, and tapeworms.
  2. Human Use:

    • Fenbendazole has not been approved by regulatory agencies like the U.S. Food and Drug Administration (FDA), European Medicines Agency (EMA), or similar bodies for treating any conditions in humans.
    • There are no standard guidelines or dosing protocols for its use in humans.
  3. Off-Label and Experimental Use:

    • Some individuals have used fenbendazole off-label for cancer or other health conditions, based on anecdotal claims and preclinical studies.
    • This use is experimental, lacks robust scientific validation, and carries unknown risks.

Alternatives:

For human antiparasitic treatment, drugs like mebendazole and albendazole, which belong to the same benzimidazole class as fenbendazole, are approved and commonly prescribed. These medications are thoroughly studied for safety and efficacy in humans.

If you are considering fenbendazole or similar compounds for health purposes, it is crucial to consult with a healthcare professional to ensure safety and explore approved, evidence-based treatment options.


Are ‌there any‌ human studies on⁤ fenbendazole?

ChatGPT: 

As of now, there are no published, peer-reviewed clinical trials in humans specifically investigating the safety and efficacy of fenbendazole for treating cancer or other diseases. Most of the evidence surrounding fenbendazole’s potential anticancer effects comes from preclinical studies (in vitro and animal studies) and anecdotal reports.

Key Points on Research Status:

  1. Preclinical Research:

    • Laboratory Studies: Fenbendazole has been shown to inhibit the growth of cancer cells and induce cell death in certain cell lines (e.g., colorectal, lung, and breast cancer) by disrupting microtubules and affecting glucose metabolism.
    • Animal Studies: In mice, fenbendazole has demonstrated the ability to slow tumor growth when used in specific models, but these results cannot be directly extrapolated to humans.
  2. Anecdotal Evidence:

    • Some individuals have reported using fenbendazole alongside conventional treatments or on its own to manage cancer, citing personal success stories. These claims, however, are not validated by scientific research and often lack detailed documentation or controls.
  3. Lack of Clinical Trials:

    • No formal Phase I, II, or III clinical trials have been conducted to evaluate fenbendazole’s effects in humans.
    • While some researchers have expressed interest in studying its potential, significant barriers exist, including funding and the lack of pharmaceutical interest in repurposing veterinary drugs.
  4. Research on Related Drugs:

    • Drugs in the same class as fenbendazole (e.g., mebendazole) have undergone limited testing for cancer, with some showing promise in early-phase trials. This highlights the possibility of repurposing benzimidazole compounds for oncology.

Conclusion:

While fenbendazole has shown intriguing potential in preclinical models, its use in humans remains unproven and unapproved. Without human clinical trials, its safety, appropriate dosing, and efficacy in treating diseases cannot be confirmed. If you are exploring alternative or experimental treatments, consult with a qualified oncologist or healthcare provider.


What are ⁢the⁣ potential ⁤risks of using fenbendazole in humans?

ChatGPT:

Using fenbendazole in humans, especially off-label or without medical supervision, poses several potential risks due to the lack of clinical data on its safety, dosing, and side effects in humans. Below are some of the potential risks:

1. Unknown Safety Profile

  • Fenbendazole is not approved for human use, so its safety in humans has not been rigorously studied.
  • While it is generally well-tolerated in animals, humans may react differently, especially at doses higher than those used in veterinary medicine.

2. Potential Side Effects

  • Based on animal data and the pharmacological effects of related drugs (like mebendazole), possible side effects in humans may include:
    • Gastrointestinal issues: Nausea, vomiting, diarrhea, or abdominal pain.
    • Allergic reactions: Skin rashes, itching, or other hypersensitivity reactions.
    • Liver toxicity: Similar drugs can affect liver function, and fenbendazole may pose a risk of hepatotoxicity at high or prolonged doses.
    • Bone marrow suppression: Although not directly observed for fenbendazole, related drugs in the benzimidazole class can rarely suppress blood cell production, leading to anemia, low white blood cell counts, or low platelets.

3. Drug Interactions

  • Fenbendazole could interact with medications or supplements, potentially reducing their effectiveness or causing adverse effects. For example:
    • Enzyme inhibitors or inducers that affect drug metabolism might alter fenbendazole levels in the body.
    • Combining it with chemotherapy or other anticancer treatments without medical oversight could increase toxicity or reduce efficacy.

4. Toxicity at High Doses

  • The dose used in animals may not be directly applicable to humans. Without clinical trials, the therapeutic window (safe and effective dose range) is unknown.
  • High doses or prolonged use could lead to toxic effects, particularly in organs like the liver, kidneys, and gastrointestinal system.

5. Delay in Evidence-Based Treatment

  • Using unproven treatments like fenbendazole might cause individuals to delay or avoid evidence-based therapies (e.g., surgery, chemotherapy, or radiation).
  • This delay could allow the disease to progress, reducing the chances of effective treatment.

6. False Sense of Security

  • Anecdotal reports of success may create unrealistic expectations. Such claims are often unverified and may overlook other factors contributing to outcomes, such as concurrent treatments or spontaneous remission.

7. Ethical and Legal Concerns

  • Using fenbendazole outside of its approved purpose might raise ethical and legal issues, especially if prescribed or recommended by unqualified individuals.

Conclusion

While fenbendazole may have intriguing preclinical properties, its use in humans is experimental and carries significant risks. If you are considering it as part of a treatment plan, it is crucial to consult with a qualified healthcare provider to weigh the potential risks and benefits and explore safer, evidence-based options.


Can ivermectin shrink cancer metastases?

ChatGPT:

The claim that ivermectin, an antiparasitic drug widely used to treat parasitic infections in humans and animals, can shrink cancer metastases is an area of growing scientific curiosity. However, while some preclinical studies have suggested potential anticancer effects, there is no definitive evidence to support the use of ivermectin as a treatment for cancer or cancer metastases in humans.

What the Research Says

1. Preclinical Studies (Lab and Animal Research):

  • Mechanisms of Action:
    • Ivermectin has been found to interfere with various cellular processes involved in cancer progression, such as:
      • Inhibiting WNT/β-catenin signaling, which is important for cancer cell growth.
      • Promoting apoptosis (programmed cell death) in cancer cells.
      • Modulating the immune system to enhance the body’s ability to target tumors.
  • Studies in cell cultures and animal models have shown that ivermectin can inhibit tumor growth and metastasis in several cancer types, including lung, breast, and colon cancer.

2. Lack of Human Clinical Trials:

  • While preclinical data is promising, there are no large-scale, peer-reviewed clinical trials demonstrating ivermectin’s safety or effectiveness in treating cancer in humans.
  • The doses of ivermectin required for anticancer effects in lab studies are often higher than those approved for antiparasitic use, raising concerns about toxicity in humans.

3. Potential for Drug Repurposing:

  • Ivermectin’s potential as a repurposed drug for cancer therapy is being explored. Repurposing existing drugs offers advantages like known safety profiles (at approved doses) and faster clinical translation.
  • Research into ivermectin as a cancer treatment is ongoing, but it remains experimental.

Risks of Using Ivermectin for Cancer Treatment

  1. Unknown Safety at High Doses:

    • The doses required for anticancer effects may exceed the safe therapeutic window for humans, leading to risks of neurotoxicity or other side effects.
  2. Interaction with Other Treatments:

    • Using ivermectin without medical supervision may interfere with conventional cancer treatments or cause adverse interactions with other drugs.
  3. Delay in Proven Therapies:

    • Relying on unproven treatments like ivermectin might lead to delays in receiving evidence-based cancer therapies, potentially worsening outcomes.

What Do Experts Say?

  • Oncologists and researchers emphasize the importance of evidence-based treatments and caution against using ivermectin as a cancer therapy outside of clinical trials.
  • Anecdotal claims are not a substitute for robust scientific evidence, and experimental use should be approached with caution.

Conclusion

While ivermectin shows potential in preclinical studies as an anticancer agent, there is no conclusive evidence that it can shrink cancer metastases in humans. Its use for cancer treatment remains experimental and unapproved. Patients interested in exploring new treatments should consult with their healthcare providers and consider participation in clinical trials.


Can the fenbendazole and ivermectin combination treat cancer?

ChatGPT:

The combination of fenbendazole and ivermectin for cancer treatment is not scientifically proven or medically approved. While both drugs have shown potential anticancer effects in preclinical studies (lab and animal research), there is no robust clinical evidence to support their combined use as an effective cancer therapy in humans.

What the Research Says

Fenbendazole:

  • Potential Effects:
    • Disrupts microtubules, impairing cell division.
    • Induces apoptosis (programmed cell death) in cancer cells.
    • May interfere with glucose metabolism in tumors.
  • Evidence Status:
    • Only preclinical studies (test tube and animal models) support its anticancer properties.
    • No human trials or validated evidence for cancer treatment.

Ivermectin:

  • Potential Effects:
    • Inhibits signaling pathways like WNT/β-catenin involved in tumor growth.
    • Enhances apoptosis and disrupts cellular energy production.
    • May modulate immune responses against tumors.
  • Evidence Status:
    • Preclinical studies show promise, but human studies are lacking.

Combination Potential:

  • The combination of fenbendazole and ivermectin has not been specifically studied for cancer treatment in clinical trials.
  • Hypothetical Mechanisms:
    • The drugs might theoretically work together by targeting cancer cells through complementary pathways (e.g., disrupting microtubules and metabolic pathways or enhancing immune responses).
    • This hypothesis remains untested in humans and lacks rigorous scientific validation.

Risks of Using Fenbendazole and Ivermectin Together

  1. Unknown Safety Profile:

    • The combined effects of fenbendazole and ivermectin on humans have not been studied.
    • Possible toxicities, drug interactions, or cumulative side effects are unknown.
  2. Lack of Dosage Guidelines:

    • There are no established dosing regimens for using these drugs together in humans for cancer treatment.
  3. Delay in Proven Therapies:

    • Patients using experimental combinations may delay or forgo evidence-based treatments, potentially reducing survival chances.
  4. Drug Interactions:

    • Both drugs could potentially interact with other medications, including chemotherapy, leading to unpredictable outcomes.

Medical Consensus

  • Oncologists and researchers caution against using unproven treatments like fenbendazole and ivermectin without robust evidence.
  • While the idea of drug repurposing is scientifically intriguing, any experimental combination therapy should be tested in well-designed clinical trials to ensure safety and efficacy.

Conclusion

The combination of fenbendazole and ivermectin for cancer treatment remains experimental and unsupported by clinical evidence. While both drugs show promise in preclinical research, their combined use has not been rigorously studied or validated in humans. If you are considering alternative or experimental treatments, consult a qualified healthcare provider and prioritize evidence-based care or clinical trial participation.


What cancers can Ivermectin treat?

ChatGPT:

Ivermectin, a widely used antiparasitic drug, has been studied for its potential anticancer effects in preclinical research. While it has shown promise in laboratory (in vitro) and animal (in vivo) models, it is not approved for treating cancer in humans. No cancers are definitively proven to be treatable by ivermectin in clinical practice.


Potential Effects of Ivermectin on Cancer

Preclinical studies suggest that ivermectin may act on several cancers by:

  1. Inhibiting WNT/β-catenin signaling:
    • This pathway is crucial for tumor growth and survival in some cancers.
  2. Inducing apoptosis:
    • Ivermectin promotes programmed cell death in cancer cells.
  3. Disrupting mitochondrial function:
    • It interferes with energy production in cancer cells.
  4. Enhancing immune responses:
    • It modulates the immune system, potentially aiding in attacking cancer cells.
  5. Blocking angiogenesis:
    • Ivermectin may reduce the formation of blood vessels that feed tumors.

Types of Cancer Studied in Preclinical Research

Some cancers where ivermectin has shown potential in laboratory or animal studies include:

  1. Breast Cancer:

    • Ivermectin inhibited breast cancer cell growth by inducing apoptosis and interfering with cell cycle progression.
    • Example: Studies have suggested it might be effective against triple-negative breast cancer, a particularly aggressive form.
  2. Lung Cancer:

    • Preclinical research indicates that ivermectin can inhibit the proliferation of lung cancer cells by disrupting signaling pathways.
  3. Colorectal Cancer:

    • Studies suggest that ivermectin can suppress colorectal cancer cell proliferation and induce cell death.
  4. Glioblastoma (Brain Cancer):

    • Ivermectin showed promise in inhibiting glioblastoma cells, partly by modulating the WNT/β-catenin pathway.
  5. Leukemia:

    • It has demonstrated cytotoxic effects on leukemia cells in laboratory studies.
  6. Ovarian and Cervical Cancers:

    • Research indicates potential anticancer effects in these cancers, likely by inducing apoptosis and disrupting cellular energy production.
  7. Prostate Cancer:

    • Some studies have shown that ivermectin can slow the growth of prostate cancer cells in laboratory models.

Limitations and Current Status

  1. Lack of Clinical Trials:

    • Despite promising laboratory results, no large-scale clinical trials have confirmed ivermectin's safety or efficacy in treating any type of cancer in humans.
  2. High Doses in Preclinical Studies:

    • The doses of ivermectin used in laboratory experiments are often much higher than those approved for human use as an antiparasitic, raising concerns about toxicity.
  3. Experimental Status:

    • Ivermectin remains experimental as a cancer treatment and should not replace established, evidence-based therapies.

What Do Experts Say?

  • Medical professionals urge caution when considering ivermectin for cancer treatment due to the lack of clinical evidence and potential risks.
  • If ivermectin is being explored as a treatment option, it should only be done under the guidance of a healthcare professional within the context of a clinical trial.

Conclusion

While preclinical studies suggest ivermectin may have anticancer effects in various cancers (e.g., breast, lung, colorectal, and brain cancers), its use in humans is not supported by clinical evidence. If you are exploring experimental treatments, consult your oncologist or consider participating in clinical trials to ensure safety and access to evidence-based care.


What dose of Ivermectin to treat COVID-19 mRNA Vaccine Turbo Cancer?

ChatGPT:

There is currently no evidence-based treatment protocol involving ivermectin for managing cancer, including speculative claims about "mRNA vaccine turbo cancer." The concept of "turbo cancer" as a direct consequence of mRNA COVID-19 vaccines lacks scientific validation, and ivermectin has not been proven to treat cancer or any vaccine-related conditions.


Key Points:

  1. No Established Link Between COVID-19 Vaccines and "Turbo Cancer":

    • COVID-19 vaccines, including mRNA vaccines (Pfizer-BioNTech and Moderna), have undergone extensive clinical trials and post-marketing surveillance.
    • Studies show no credible evidence linking mRNA vaccines to an increased risk of cancer or a phenomenon such as "turbo cancer."
  2. Ivermectin and Cancer:

    • While preclinical studies suggest ivermectin has anticancer potential, no clinical trials have validated its safety or efficacy in treating cancer in humans.
    • There are no guidelines for ivermectin dosing for cancer treatment, and high doses pose serious risks, including neurotoxicity.
  3. COVID-19 Vaccines and Safety:

    • The vast majority of side effects from COVID-19 vaccines are mild and short-lived (e.g., soreness, fatigue, fever).
    • Severe adverse events are rare and extensively monitored by organizations like the CDC and WHO.

What Should You Do?

If you or someone you know is dealing with a cancer diagnosis:

  1. Consult an Oncologist:
    • Seek professional medical advice to explore proven treatment options tailored to the specific cancer type.
  2. Avoid Unproven Treatments:
    • Using unverified therapies like ivermectin could delay effective treatment and potentially worsen outcomes.
  3. Report Concerns to a Healthcare Professional:
    • If you suspect a health issue related to a COVID-19 vaccine, report it to health authorities (e.g., VAERS in the U.S.) and consult your doctor.

Conclusion

There is no scientific basis for using ivermectin to treat cancer, including unverified claims of "mRNA vaccine turbo cancer." Treatment decisions should be based on evidence and guided by qualified healthcare professionals. For cancer concerns, stick to proven therapies and clinical trials. If you have concerns about vaccines, consult credible sources like the CDC, WHO, or a trusted healthcare provider.


Grok 2 (X.com):


1 post
25 web pages

The concept of "COVID-19 mRNA Vaccine Turbo Cancer" is not a recognized medical condition in mainstream medical literature or by regulatory bodies like the FDA or WHO. However, there's been discussion in alternative health circles and on platforms like X, where some advocates suggest ivermectin might have anti-cancer properties, including potentially treating cancers associated with mRNA vaccines.

Regarding the use of ivermectin for this purpose:

  • No Standard Dosage: There is no officially recommended dose of ivermectin for treating any form of cancer, including what some refer to as "turbo cancers" post-mRNA vaccination, because it's not an approved treatment for cancer. However, in discussions and anecdotal reports:

    • Suggested Doses: Some advocates, like Dr. William Makis, have suggested experimental protocols for using ivermectin against cancer, proposing doses that can be significantly higher than those used for parasitic infections. For instance:
      • Medium Dose: 1 mg/kg/day has been suggested for treating "turbo cancers."
      • High Dose: Doses up to 2 mg/kg/day have been discussed for particularly aggressive forms of cancer, with the caveat that these are experimental and not backed by clinical trials for cancer treatment.

    • Safety Concerns: The safety of such high doses for long-term use in humans for cancer treatment is not established. Studies referenced in the web results, like Guzzo et al., indicate that up to 2 mg/kg was tested in healthy adults with no serious side effects, but this was for pharmacokinetic studies, not cancer treatment.
  • Clinical Evidence: While there are numerous pre-clinical studies suggesting ivermectin's anti-cancer potential, there is a lack of robust clinical trials specifically examining its effectiveness and safety for cancer treatment in humans, especially for the context of mRNA vaccine-related cancers. The studies referenced generally focus on in vitro or animal models.
  • Risks: Using ivermectin at high doses, especially without medical supervision, can lead to side effects like liver toxicity, neurological symptoms, and other adverse reactions, particularly if not formulated for human use.
  • Regulatory and Expert Opinion: Health authorities have not endorsed ivermectin for cancer treatment due to the lack of evidence from well-designed clinical trials. The FDA has explicitly stated that ivermectin is not approved for preventing or treating cancer.

Given this information:

  • Consultation: Anyone considering ivermectin for cancer should consult with an oncologist or a physician familiar with its off-label use, as they can provide guidance based on current knowledge, monitor for side effects, and assess the appropriateness of such treatment.
  • Research: More research is needed to confirm if ivermectin could be used safely and effectively for cancer, especially in the context discussed.

Please note, this response is based on information available and does not constitute medical advice. Always consult healthcare professionals for treatment decisions.

Discussion

The anecdotal nature of various reports precludes definitive conclusions about the efficacy of fenbendazole and ivermectin as a cancer treatment. However, the consistency of positive outcomes across diverse cancer types suggests a potential biological effect that merits further investigation. 

The pattern of case reports also suggests that fenbendazole and ivermectin may exhibit broad-spectrum anticancer properties.

Comparatively, other repurposed anthelmintic drugs, such as mebendazole, have progressed further along the clinical research pipeline, with some reaching early-phase human trials. 

Future Directions

To address these challenges and advance the understanding of fenbendazole and ivermectin’s role in oncology, the following steps are recommended:

  • Controlled Clinical Trials: Randomized, double-blind studies are essential to establish fenbendazole and ivermectin’s efficacy and safety in humans.
  • Mechanistic Studies: Further research into fenbendazole and ivermectin’s molecular targets and pathways will clarify its anticancer properties and identify potential biomarkers of response.
  • Combination Therapy Research: Studies exploring fenbendazole and ivermectin in combination with standard treatments, such as chemotherapy and immunotherapy, may uncover synergistic effects.

Conclusion

The consistency of anecdotal outcomes, supported by plausible preclinical mechanisms, positions fenbendazole and ivermectin as promising candidates for further investigation in oncology. 

Given the potential benefits of fenbendazole and ivermectin with what seems to be a limited toxicity profile, further research is warranted to evaluate the clinical settings in which this medications may be beneficial and repurposed for patients with progressive malignancy and possibly other malignant settings as well.

However, until robust clinical evidence is available, healthcare providers must guide its use with caution, and patients should not substitute it for evidence-based treatments. Collaborative efforts between researchers, clinicians, and regulatory bodies are essential to unlock fenbendazole and ivermectin’s full therapeutic potential while safeguarding patient safety.


Editor's Note: What are your thoughts? Leave your comment below...

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