Just can't say enough good stuff about Febendazole (222 mg).... Purchased on Amazon from Fenben Labs ($69.3 month supply)... Don't have cancer - have never had cancer - BUT am in the final stages of getting rid of a lifetime of undetected parasites - and Fenbendazole is finishing off the work that Ivermectin started.... It is definitely effective against helminths and protozoa... Very good, high-quality product - with AMAZINGLY positive results! Easily as important to have as IVM when ridding parasite infections...