Introduction
When it comes to health and wellness, understanding the correct dosages of supplements and medications can make a significant difference in their effectiveness. This guide provides detailed recommendations for Ivermectin dosage , Fenbendazole dosage, Zinc, and Vitamin C, including low, medium, and high dosages for various health purposes.
Ivermectin: A Multi-Purpose Antiparasitic Medication
Ivermectin has gained popularity for its versatile uses, ranging from antiparasitic effects to immune system modulation.
- Low Dose (≤0.2 mg/kg): Ideal for prevention and early intervention for mild infections or immune system support.
- Medium Dose (0.4 mg/kg): Recommended for moderate cases, offering enhanced immune function.
- High Dose (0.6 mg/kg): Suitable for severe infections or advanced treatment.
Weight-Based Dosing Chart for Ivermectin (Prevention and Early Intervention):
For precision, dosages vary by weight:
- 70-90 lbs: 16 mg (low dose), 24 mg (high dose).
- 131-150 lbs: 27 mg (low dose), 40.5 mg (high dose).
- 211-230 lbs: 40 mg (low dose), 60 mg (high dose).
| Substance | Low Dose | Medium Dose | High Dose | Purpose | Notes |
|---|---|---|---|---|---|
| Ivermectin | ≤ 0.5 mg/kg | 1.0 mg/kg | 2.0–2.5 mg/kg | Prophylaxis and early intervention in cancer or infection | Reference weight chart for specific doses based on weight. |
| Fenbendazole | Preventative: 3 days/week, 10 weeks/year | Prophylaxis: 6 days/week | Active Treatment: 6 or 7 days/week | Cancer treatment and prevention | Monitor liver function regularly. Include additional supplements as outlined in the protocol. |
| Zinc | 15 mg/day | 30 mg/day | 50 mg/day | Immune system support, wound healing | Do not exceed 40 mg/day over long periods to avoid copper depletion. |
| Vitamin C (IVC) | 1,000 mg daily | 10,000 mg (IVC, under medical care) | 25,000 mg (IVC, under medical care) | Antioxidant, immune booster, cancer therapy | Medical supervision required for high doses to monitor adverse effects, especially in cancer therapy. |
Detailed Weight-Based Ivermectin Dosing (FLCCC Protocol)
(Values are rounded for simplicity; always consult a healthcare professional.)
| Weight | Prevention Dose (0.2 mg/kg) | Low Dose (0.4 mg/kg) | High Dose (0.6 mg/kg) |
|---|---|---|---|
| 70–90 lbs | 8 mg | 16 mg | 24 mg |
| 91–110 lbs | 10 mg | 20 mg | 30 mg |
| 111–130 lbs | 12 mg | 24 mg | 36 mg |
| 131–150 lbs | 13.5 mg | 27 mg | 40.5 mg |
| 151–170 lbs | 15 mg | 30 mg | 45 mg |
| 171–190 lbs | 16 mg | 32 mg | 48 mg |
| 191–210 lbs | 18 mg | 36 mg | 54 mg |
| 211–230 lbs | 20 mg | 40 mg | 60 mg |
| 231–250 lbs | 22 mg | 44 mg | 66 mg |
| 251–270 lbs | 24 mg | 48 mg | 72 mg |
| 271–290 lbs | 26 mg | 52 mg | 78 mg |
| 291–310 lbs | 28 mg | 56 mg | 84 mg |
Key Points:
- Ivermectin: Adjust dosing based on weight and protocol needs. Low doses are effective for prevention, while higher doses are used for aggressive interventions.
- Fenbendazole: Standardized for cancer care and requires monitoring liver function.
- Zinc: Enhances immune function but avoid long-term overuse to prevent side effects.
- Vitamin C: Critical in immune health and cancer protocols, particularly in intravenous high-dose applications.
Resources:
If you found this article helpful, every topic we covered here has a deeper, fully developed companion resource waiting for you inside our free Courage Against Cancer Resource Library. From dosage guidelines to nutrition plans, mindset tools, and full healing protocols, you’ll find everything organized and ready for download. Simply click the button below to visit our Resources Page and unlock the complete library with one quick form — your journey continues there.
Healing Store:
If you’re ready to take the next step in your healing journey, many of the tools, supplements, and wellness essentials mentioned in this article can be found in our curated Healing Store. Every item is carefully selected to complement our protocols and support your body’s healing environment. Click the button below to explore the Healing Store and discover the products that can help strengthen, nourish, and empower your path forward.
Disclaimer: Not Medical Advice
The information provided by Courage Against Cancer is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. Nothing on this website or within our downloadable resources should be interpreted as a substitute for professional medical care or guidance from a qualified healthcare provider. Always consult your physician or licensed medical professional before starting, stopping, or modifying any treatment, supplement, medication, or protocol. Courage Against Cancer does not practice medicine, prescribe treatments, or guarantee outcomes. Use all information at your own discretion and risk.
Discover more from Courage Against Cancer
Subscribe to get the latest posts sent to your email.
20 replies on “Comprehensive Dosage Guide of Fenbendazole and Ivermectin for Humans”
Stumbled onto your site after just getting out of the hospital for colon (cecum) cancer surgery; then a closed loop small bowel obstruction from adhesions. Thankfully that second surgery a month after the first was avoided. I’m due to start chemo in a week or so, is the ivr/fbz(mbz) protocol compatible to run concurrent to standard treatment or should l use after more as a preventive.
Kimberly
Thank you for the comment. I am truly sorry to hear about your colon cancer.
To your question, I am not in a position to definitively answer your question, but the research is showing that combining standard of care with new non-conventional treatments has positive outcomes.
Here is one of our articles addressing that expect question you posed.
https://courageagainstcancer.org/2025/11/07/synergy-ivermectin-mebendazole-standard-cancer-therapy/
Hope this helps. Feel free to reach out with additional questions.
Stay Courageous healing is possible!
what is the dose for beginning maintainance
The FBZ guide should offer a “low dose” recomendation for maintenance and prevention. If you need further help, reach out via our Contact Page and I will get an email with you concern.
Does Mebendazole dosage parallel Fenbendazole dosage with on-offs also being parallel?
Good question, Doug. This is not to be considered medical advice, only my educated opinion, but the short answer is ‘YES’. FBZ and MBZ are cousins of each other where MBZ is shown to have the same mechanisms of FBZ with the added benefit of crossing the blood-brain-barrier making it highly attractive in brain cancer research. Glioblastoma’s are a cancer type that I am actively pursuing for clinical study to eventually get to FDA for their stamp of approval.
With that said, the $5 donation drive initiated this week, will help CAC build a ‘Research War Chest’ allowing CAC to move quickly into preclinical and clinical trials without the need to wait for grant funding and the constraints of grantor requirements. Our Mission is to get as many cancer types studied/researched with IVM and MBZ (both are currently FDA approved, even though not for cancer treatment) so we can enforce our case with the FDA.
Exciting times right now for CAC. Thank you being a part of the movement!
SK
[…] For more detailed information as to the actions and effects of Ivermectin and Mebendazole (Fenbendazole), CLICK HERE […]
I am a 72 yr old male 180 lbs. I have been taking 12Mg of ivermectin
every day for months. I have not been sick even though some people around me have. Not saying it’s helping or not, just saying .
Is there a down side of me taking this amount all the time.
Do you think its helping or hurting me in the long run?
Thats a great question, Ken. I’m not a doctor so this is not medical advice only my educated opinion
As you can tell, I am a huge proponent of Ivermectin and its ability to heal unhealthy cells while leaving already healthy cells alone making it an incredible preventative medication.
IVM is a weight based medication, as you know. Given your weight and using IVM daily, I might recommend cutting back to 6mg tablets for 3 days on, 2 days off to protect your liver. Taking a few days break allows your liver to cleanse the toxic cells it’s been cleaning out. However, if you’ve been testing your liver enzymes and lipid levels regularly with “in range” results and no adverse effects, who am I to recommend changing the routine?
“If it ain’t broke, don’t fix it” comes to mind
Ken, you keep doing what you’re doing, it sounds like you got a good handle on your health.
Feel free to reach out for more support and download our free resources to use and share with your contacts
Sean Kimbrough
How many days on and how many days off?
Good question, I get that a lot. Short answer is it’s based on severity and amount of medications taken. Days off are important to give the liver time to cleanse the build up of toxic cells killed by Ivermectin and Mebendazole/Fenbendazole
Is there anywhere to find that info. I want to know how much is to much per day?
Will, here is our Ivermectin dosage guidelines for your assistance
https://seankimbrough70.wordpress.com/wp-content/uploads/2025/05/e3d58-light-blue-professional-medicine-infographic.png
Here is our Fenbendazole dosage guidelines
https://seankimbrough70.wordpress.com/wp-content/uploads/2025/05/a2542-fenbendazole-dosage-guide-for-cancer-treament.png
Hopefully these help b
I am 86 with stage 4 Prostate cancer. I weigh 106, How much Ivermectin and how much Fenbendsole do I need to take?
Hi George,
If you haven’t discovered our Fenbendazole and Ivermectin guides, here are links to our guideline pages:
Fenbendazole: https://courageagainstcancer.org/2025/02/04/fenbendazole-dosage-guide-for-cancer-treatment/
Ivermectin: https://courageagainstcancer.org/2025/02/04/ivermectin-dosage-guide-for-cancer-treatment/
Remember, when taking these medications it is VERY important to exercise the days-on / days-off to allow your liver time to cleanse the toxic cells they killed.
If you have any further questions, feel free to reach out. We are here to support your cancer fighting journey.
Stay Courageous! Healing is possible!
Sean Kimbrough
I have finished all treatments other than hormone blockers for breast cancer with lymph involvement. I am currently cancer free, I hope. What does and frequency do you recommend. I currently weigh 150lbs.
Hello Sylvia,
Thank you for the comment. Our posted guidelines for Fenbendazole and Ivermectin are on the lower, conservative side of recommendations. Remember, Ivermectin is weight based so determine your dosage amount based on that factor. Fenbendazole is not weight based but more of a traditional type of dosage protocol. Fenbendazole is typically administered using 222mg increments.
It is important to remember to take the appropriate ‘Days Off’ to give your liver adequate time to cleanse itself of the toxic cells the medications have been killing.
I also highly recommend drinking iced Green Tea daily. Green Tea has tremendous health benefits, and not just against cancer. Personally, I drink approximately 2-3 gallons per week.
Hope this helps. If you need additional assistance, feel free to reach out via our ‘Contact’ form/page.
[…] What’s the best fenbendazole dosage for […]
[…] weight and health condition. Consult your doctor for personalized advice. [Here is a link to our Fenbendazole Dosage Guide […]
[…] its benefits, Ivermectin must be used within safe dosing limits to avoid toxicity. Known toxicity levels […]