Work out your doses. Read the research. Stay safe.
What do you want to do?
Not medical advice. These drugs are not approved to treat cancer. Everything you enter stays on your phone.
Step 1 of 4
Why are you here?
Pick the one that fits best. You can change it later.
What stage is your cancer?
Your doctor told you a number from 1 to 4. If you are not sure, pick the closest one.
How much do you weigh?
Your ivermectin dose is worked out from your weight. Close enough is fine.
75 kg
What kind of ivermectin do you have?
This matters a lot. The same drug comes in very different strengths. Pick wrong and your dose could be ten times off.
Step 1 of 4
What kind of animal?
What breed is your dog?
Do not give this dog ivermectin
This breed often carries a gene called MDR1. It lets ivermectin build up in the brain. That can cause seizures and death, even at a dose that is safe for other dogs.
We took ivermectin out of your plan. Your dog can still take fenbendazole, which does not carry this risk.
What is their name?
How much do they weigh?
23 kg
Take this with food that has fat in it
Peanut butter, cheese, avocado, olive oil, or a full dinner. Fat helps your body soak up the drug. Without it, much of the dose is wasted.
Track your progress
Not medical advice. Ivermectin, fenbendazole, and mebendazole are not approved to treat cancer. These numbers come from published studies and from what people report doing. Using this app does not make us your doctor. Talk to a real one before you start.
Not feeling well?
Find your symptoms below. The list runs from normal at the top to dangerous at the bottom.
Tired, foggy head, mild headache
This is usually normal. When parasites and cancer cells die, they dump waste into your blood faster than your body can clear it. That is what makes you feel bad. It is not the drug hurting you.
Drink more water. Rest. Take your binder 2 to 3 hours after your dose. This usually peaks around day 2 to 5 and then fades. Keep going.
The medical name for this
A Herxheimer reaction, often shortened to a "Herx" or called die-off. It is caused by endotoxin release from dying organisms outpacing hepatic and renal clearance.
Upset stomach, loose poop, achy joints
Usually normal too. It can also mean your body is not soaking up the drug well.
Take your dose with a bigger, fattier meal. Split your fenbendazole across two meals. Add a binder dose at bedtime. Keep going.
Sick to your stomach that will not quit, no appetite, pain under your right ribs
Your liver may be struggling. Stop taking your doses now.
Keep taking your binder while you are stopped. Get a liver blood test as soon as you can. It measures things called AST and ALT. Only start again when those numbers are back to normal, and drop down one level when you do.
Yellow skin or yellow eyes. Bad belly pain. Trouble breathing. Changes in your eyesight. A bad rash.
Stop everything and get emergency help now.
This is not die-off. Call 911 or go to an emergency room. Tell them exactly what you have been taking and how much.
If you are on immunotherapy, read this
Drugs like Keytruda and Opdivo are already hard on your liver. Adding fenbendazole on top has caused serious liver damage in reported cases.
Talk to your cancer doctor before you start. Do not hide it from them.
The technical version
Published case reports describe drug-induced liver injury when fenbendazole is combined with checkpoint inhibitors (pembrolizumab, nivolumab). Additive hepatotoxicity is the proposed mechanism.
Get your liver checked
All three of these drugs are processed by your liver. Get a blood test before you start so you know what normal looks like for you. Then test again as you go.
- Before you start, if you are on anything above the lowest level.
- Every 1 to 2 weeks on the High or Advanced level.
- Once more when you finish.
Ask for AST, ALT, GGT, and bilirubin. Those four are the ones that matter.
The short version
These are old, cheap drugs made to kill worms and parasites. Doctors have used them in people and animals for forty years. They are well understood and mostly safe at their normal doses.
In lab tests, they also do things to cancer cells. They break the tiny scaffolding a cell needs to divide. They cut off the sugar tumors feed on. They flip on the switch that tells a broken cell to die.
Here is the honest part. Most of that work was done in dishes and in mice. There are a few human trials and a pile of case reports. That is real, but it is not proof. Anyone who tells you this is a cure is lying to you.
Why would a worm drug touch cancer?
Cancer cells and parasites have something in common. Both grow fast, and both depend on the same basic machinery to do it.
To split in two, a cell builds a tiny set of ropes that pull its chromosomes apart. These drugs jam those ropes. A parasite cannot divide. Neither can a tumor cell.
Fast-growing cells also burn a lot of sugar. These drugs get in the way of that too.
The technical version
Benzimidazoles bind β-tubulin and inhibit microtubule polymerization, arresting mitosis. Secondary mechanisms include GLUT-transporter interference and glycolytic suppression, p53 stabilization, and induction of apoptosis and autophagy.
What "not FDA approved" really means
The FDA approved these drugs for parasites. It has not approved them for cancer.
That does not mean they were tested for cancer and failed. It means nobody has run the big, expensive trials it takes to get an approval. These drugs are old and cheap, so no company stands to make money doing it.
But it also means the safety data for taking these at cancer doses, for months at a time, is thin. Real people have been hurt. That risk is on you, and it is why the liver testing matters so much.
What is a binder and why do I need one?
When parasites and cancer cells die, they release waste into your gut and blood. If it sits there, it makes you feel awful and can put you off the whole thing.
A binder is something that soaks that waste up so it leaves your body. Activated charcoal is the common one.
Timing is the whole game. Take your binder 2 to 3 hours after your dose. Never before.
Charcoal soaks up anything it touches. It cannot tell your medicine from the waste. Take it first and it traps your dose in your gut, and the dose does nothing. Hospitals use charcoal to stop poison from being absorbed. That is how well it works.
Start at 1 gram per dose. Work up to 2 or 3 grams if you feel rough. If you get constipated, back off. That is your limit.
The same rule goes for any other pill you take by mouth. Thyroid medicine, birth control, antidepressants. Keep them at least 2 hours away from charcoal.
Words you will see, in plain English
- Protocol
- A plan. What to take, how much, and when.
- Dose
- How much you take at one time.
- mg
- Milligram. A unit of weight for medicine. 1000 mg is 1 gram.
- mg/kg
- Milligrams per kilogram of your body weight. Bigger person, bigger dose.
- Herx or die-off
- Feeling sick because things are dying inside you and dumping waste. Not the drug hurting you.
- Binder
- Something that soaks up that waste so it leaves your body.
- LFT
- Liver function test. A blood test that shows if your liver is struggling.
- Adjunct
- Something taken alongside your real treatment, not instead of it.
- Metastatic
- Cancer that has spread to other parts of the body. Stage 4.
- In vitro
- Done in a dish in a lab. Furthest from proof in people.
- In vivo
- Done in a living animal, usually mice. Closer, still not people.
- RCT
- Randomized controlled trial. Real people, split into groups by chance. The strongest kind of evidence.
- Case report
- A write-up of one person. Interesting, but it cannot tell you what caused what.
- Retracted
- A study the journal pulled back after publishing. Treat it with real caution.
Four drugs show up in this app. Here is what each one does, and what to watch for.
Start with your mouth
Doctors usually treat disease at the end of the chain. Statins for cholesterol. Chemo for tumors.
But a lot of that chain starts in your mouth. Infected gums leak germs and swelling into the rest of your body, day after day, for years. That slow burn feeds heart disease, memory loss, joint disease, diabetes, and some cancers.
Your mouth is the easiest place in the body to fix. That makes it the best deal in medicine.
Tap any section to open it.
Want to read the studies yourself?
All of them are in the Learn tab, and you can filter by body part.
What to buy
In the order you need it. Get the first two before you start.
Some links here are affiliate links. If you buy through them, AntiparasitIQ may earn a commission. It does not cost you anything extra. Not medical advice.
Avoiding fakes
Counterfeits are common with these drugs. Stick to the shops above. If you go somewhere else, avoid random marketplace sellers, ads you saw on social media, and overseas sites with no real address. For prescription items, use a US-licensed pharmacy only.
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Legal
For information only. This is not medical advice. AntiparasitIQ is a reference tool, not a medical device. Nothing here is a diagnosis, a treatment, or a substitute for a real doctor. Ivermectin, fenbendazole, and mebendazole are not approved by the FDA to treat cancer. All dosing information comes from published research, case reports, and protocols people report using. Results vary. Anything you do with this information is at your own risk. Using this app does not make us your doctor or your vet. Always talk to a licensed doctor before starting any medicine, and a licensed vet before giving anything to an animal. Get your liver checked at every dose level. AntiparasitIQ takes part in the Amazon Associates program, and some product links may earn us a commission at no extra cost to you.