From Google AI:

Ivermectin and mebendazole are both antiparasitic medications. While used for treating worms, combining high doses, such as those often discussed in off-label contexts, is controversial and frequently marketed without clinical backing.

Standard antiparasitic regimens are dosed by weight or specific infection type, often as single or short-term oral doses. The FDA-approved dosages for these drugs are established to treat specific parasitic infections.

High-dose combinations of ivermectin and mebendazole, sometimes compounded by specialty pharmacies, have surfaced online as an unproven, off-label regimen, including claims regarding cancer therapy. Medical and oncology associations strongly advise against using these antiparasitic drugs as a cancer treatment, as there is no established clinical evidence of their safety or effectiveness for this purpose.