Can Fenbendazole Cure Cancer?

According to a case series published in an oncology journal, the answer could be a resounding yes.

The case report highlights three cancer patients who were in pretty bad shape. But after taking fenbendazole, they all experienced a complete remission.

What Is Fenbendazole, and How Does it Work?

Fenbendazole (FBZ) is a medicine originally designed to treat worms and parasites in animals. Its sister drugs, Mebendazole and Albendazole, have had remarkable success treating similar ailments in humans with few side effects.

Recently, anecdotal reports have praised fenbendazole as a potentially miraculous anti-cancer drug. It works by destabilizing microtubules, the structures that help cancer cells divide and grow. By disrupting this process, fenbendazole effectively halts cancer cell division and slows or stops tumor growth.

Miraculous Recoveries After Taking Fenbendazole

Case series #1 features a 63-year-old man with advanced kidney cancer (clear cell renal carcinoma) who experienced tumor recurrence and severe side effects from multiple cancer therapies, including surgery and two different medications.

With no effective options left, he turned to fenbendazole (FBZ), taking 1 gram three times a week at a friend’s suggestion. Over the next 10 months, his tumors—including those in his pancreas and spine—showed near-complete resolution on imaging. Remarkably, he experienced no side effects from FBZ, and follow-up scans have shown no signs of recurrence.

Case series #2 follows a 72-year-old man with metastatic urethral cancer that had spread to his lungs, lymph nodes, and brain. Despite undergoing multiple rounds of chemotherapy and radiation, one lymph node continued to grow, resisting all treatments.

Seeking alternatives, he decided to try fenbendazole (FBZ), taking 1 gram three times a week, along with vitamin E, curcumin, and CBD oil, while postponing further conventional therapies. Over the next nine months, imaging revealed a dramatic response, with the lymph node shrinking significantly until it completely resolved. Remarkably, he reported no side effects during this period.

Case series #3 focuses on a 63-year-old woman diagnosed with a large, invasive bladder tumor. Facing a challenging prognosis, she underwent chemotherapy while also taking fenbendazole (FBZ) at 1 gram three times a week.

After completing six cycles of treatment, follow-up scans showed a complete resolution of the tumor, with only minimal thickening remaining in the bladder wall. Confident in her recovery, she chose to decline further surgery and remains disease-free under regular surveillance.

The abstract concluded, “FBZ appears to be a potentially safe and effective antineoplastic agent that can be repurposed for human use in treating genitourinary malignancies.”

Reflecting on these remarkable case reports, Dr. John Campbell (
@Johnincarlisle
) urged drug regulators to “start looking at this as a matter of some urgency because people are dying from cancer now.”

“So if something is safe and effective, surely it can be accredited for human use by our national authorizing agencies pretty quickly if they want to,” Dr. Campbell added with a hint of sarcasm.

Of course, the key words here are “if they want to.”

“Three patients, basically… cured of their cancers. Read the paper for yourself. That’s what they seem to be saying to me.”