A short time ago, Fenbendazole was given some attention, a "dog wormer." I have a boxer mix rescue dog that developed a couple dozen small tumors all over her body and one large tumor about the length and width of your hand and 2 inches or so thick. I gave her the regular wormer protocol, 3 doses over 3 days, once a week for a month. All the small tumors disappeared, and the large tumor reduced by about 10% in size. Over the next 5 months I tried giving her Fenbendazole daily for 21 days, and then went back to 3 doses once a week. The spread out dosing was most effective. The large tumor is now about the size of a golf ball. I'm calculating the tumor, as can be measured without surgery or scans, will be gone within about a month. I hate the people who call themselves our government.
They disparaged Ivermectin which has the same effect. Both interfere with cellular metabolism of nutrients by tumors/parasites/cancers at the mitochondrial level.
My dog always had side effects from "regular wormers", absolutely no side effects from any doses of Fenbendazole. Try this at home kids if you've gotten a months to live diagnosis and your oncologist refuses to order the human version for you. You can buy it on ebay, amazon- wherever lies aren't told.