Fenbendazole

synthetic benzimidazole anthelmintic pharmaceutical — methyl N-(6-phenylsulfanyl-1H-benzimidazol-2-yl) carbamate. not derived from a natural organism but belonging to the benzimidazole class whose development was inspired by thiabendazole, itself derived from benzimidazole chemistry pioneered partly through studying natural antifungal compounds.

widely used as a broad-spectrum dewormer in dogs, cats, livestock, horses, and laboratory animals for decades. structurally related to human-approved benzimidazoles mebendazole and albendazole. inexpensive, generic, and widely accessible since the patent expired in the early 1990s.

unlike ivermectin, fenbendazole is fully synthetic.

utility as antiparasitic drug results from differences in structures of tubulin in mammalian cells and in lower organisms which lead to greater binding to tubulin and therefore greater inhibition of polymerization in parasites.

used to treat a variety of parasites like roundworms, hookworms, whipworms, tapeworms, giardia, pinworms, and lungworms across multiple animal species. was initially formulated for veterinary use, but preliminary research has found that fenbendazole may inhibit cancer cell growth and instead, actually induce cancer cell death. also enhanced the cytotoxicity of radiation or docetaxel and increased the anti-cancer effects of radiation against mammary tumors.

Microtubule destabilization — the same mechanism as the chemotherapy drugs vinca alkaloids (vincristine, vinblastine) and taxanes (paclitaxel, docetaxel). cancer cells in the G2/M phase of division are killed through mitotic arrest. fenbendazole binds β-tubulin specifically in cancer cells at concentrations that spare normal cells due to structural differences in their tubulin.

fenbendazole inhibits glycolysis, down-regulates glucose uptake, induces oxidative stress, and enhances apoptosis. cancer cells are heavily dependent on glycolysis.

p53 is the master tumor suppressor — mutated or suppressed in approximately 50% of all cancers. fenbendazole restores p53 function through proteasome inhibition, preventing the degradation of p53 protein and allowing it to drive cancer cell apoptosis.

the same mechanism as the pharmaceutical cancer drug bortezomib (Velcade), approved for multiple myeloma. the ubiquitin-proteasome pathway is hijacked by cancer cells to degrade tumor suppressor proteins.

in vivo studies using A549 lung cancer xenografts in nude mice reported significant tumor shrinkage with oral fenbendazole administration.

fenbendazole has poor oral bioavailability in humans (approximately 20–50% absorbed) and is rapidly metabolized to fenbendazole sulfoxide.

the Joe Tippens protocol:
222 mg fenbendazole per day for 3 consecutive days followed by 4-day resting period. combined with vitamin E succinate, CBD oil, and curcumin. the 3-days-on 4-days-off cycle designed to allow liver recovery between doses.
the supplement combination is pharmacologically rational — vitamin E succinate specifically (not regular vitamin E) has documented independent anticancer activity through mitochondrial pathway. CBD has documented anti-tumor effects. curcumin inhibits NF-κB and multiple cancer survival pathways. the combination hits multiple independent targets simultaneously.

benzimidazoles including fenbendazole inhibit viral replication by blocking nuclear transport proteins. anti-inflammatory effects through modulating immune responses and reducing cytokine storms. the nuclear transport protein inhibition mechanism is parallel to ivermectin's importin α/β inhibition — both benzimidazoles and macrocyclic lactones appear to converge on viral nuclear entry as an antiviral target.

Use like ivermectin, they're kind of the same, but never give too much to your pets or oneself.
Overdosing, especially in small pets, can cause tremors, dizziness and temporarily mess up their vision, or death if the dose is too high. Caution please. Just use a pea sized amount