Fenbendazole and Ivermectin for Prostate Cancer Success Stories: 17 Case Studies Compilation (April 2025 Edition)
Can Fenbendazole and Ivermectin play a key role in treating Stage 4 Metastatic Prostate Cancer?
Several peer-reviewed papers and case studies (below) strongly suggest that it might.
- Ivermectin, Fenbendazole and Mebendazole in Cancer: 2024 Peer-Reviewed Protocol in Cancer
- Ivermectin and Cancer: 15 Anti-cancer Mechanisms of Action
- FENBENDAZOLE and CANCER - 12 Anti-Cancer Mechanisms of Action
Introduction
The main goal with this article is to provide as much clear information as possible for someone dealing with prostate cancer. This article deals with the basis and practical approach to using Fenbendazole and Ivermectin for prostate cancer.
In this article, we examine case studies of fenbendazole and its possible role in managing prostate cancer. Could this repurposed drug offer new hope for patients seeking additional treatment options? Let’s take a closer look.
Fenbendazole and Ivermectin Prostate Cancer Case Series Compilation
We have compiled a list of fenbendazole and/or ivermectin and prostate cancer case reports below.
This compilation features several case reports involving the use of ivermectin and/or fenbendazole for prostate cancer.
Case 17: Stage 4 prostate cancer
Dr. Kathleen Ruddy reported on a case of stage 4 prostate cancer:
He worked for the government, and he was going to lose his job and his pension if he wasn’t vaccinated. Two months after his second Pfizer shot, he was diagnosed all at once with stage 4 prostate cancer. He tells a very compelling, melodramatic story about that 24-hour period of time in his life.
He went through the traditional protocols; radiation, chemotherapy, pharmacologic, castration, all of it, over a period of nine months. His name is Paul Mann. His doctor said, “There’s really nothing else we can do. He said, “Can’t you give me more radiation? Can’t you give me more chemo? Aren’t there any other drugs? Are there any clinical trials? The answer was, “No, there’s nothing. There is only hospice. Send for the priest.”
A friend of his knew me and said, “Would you give Paul a call? He just needs some moral support.” I began calling him and we spoke about once a week for three weeks. The poor guy was suffering and had cancer in 11 bones in his body. His right leg was completely swollen and obstructed with a tumor. He was miserable.
I said, “Paul, I don’t know if this is going to help you, but I know it’s not going to hurt you. I just can’t imagine based on my judgment and understanding of the scientific literature and all of the work that Doctors Kory and Marik have done that ivermectin would hurt you. It might help, but I can’t say.”
He said, “I'll give it a try.” He drove to Tennessee where you could get it without a prescription. He drove from where he lives in New York to Tennessee and paid cash for his ivermectin. He didn’t submit it to an insurance company. He didn’t tell his oncologist back in Missouri.
His ivermectin prescriptions were listed in his medical chart. How did that information get from the pharmacy in Tennessee to his chart in Missouri? They don’t know. But actually, somebody does know, and I'd like to know myself.
Anyway, he starts taking ivermectin. He doesn’t have any problems with it. I talk to him every week, “How are you feeling? How’s your leg? How’s the pain? He says, “No change. But I don’t know. It’s not quite as swollen. There’s pain everywhere. Maybe it’s getting a little bit better. It’s not necessarily getting worse.”
Fast forward to a two-month follow-up appointment at the clinic. They didn’t expect to see him. He’s feeling a little bit better. They do a PSA [Prostrate-Specific Antigen Test], which in the beginning was off the charts, maybe 700 or 800. At the time, they recommended him to hospice.
Mr. Jekielek: What exactly do those numbers mean, for the layperson?
Dr. Ruddy: Over four would be abnormal. What are we talking about here? Prostate cells normally secrete a protein, a prostate-specific antigen. It’s one of the things that they do. Cancer cells that originate in the prostate that are dividing rapidly and growing fast are spitting out PSA. It’s not that they’re contributing to the body economy in any way. It’s just they just want to multiply and divide. That’s the end of the story.
Your PSA levels start to rise, which is a screening marker. They will say, “Your PSA was four, and now it’s eight. Let’s do a prostate ultrasound.” The PSA can be a screen for the emergence of a tumor, but it can also be used, particularly at high levels, as evidence for cancer, response to cancer, or recurrence of cancer. His was supposed to be four, but it’s in the hundreds.
He goes back for a two-month appointment and it’s 1.3. They said, “You’re in biochemical remission.” He was not in complete remission, because he still had the bone metastasis, but this was good news. Slowly, he begins to improve. There is less pain and the swelling is down. He has a lot of other vaccine injuries, but he’s getting better.
He worked for the government, and he was going to lose his job and his pension if he wasn’t vaccinated. Two months after his second Pfizer shot, he was diagnosed all at once with stage 4 prostate cancer. He tells a very compelling, melodramatic story about that 24-hour period of time in his life.
He went through the traditional protocols; radiation, chemotherapy, pharmacologic, castration, all of it, over a period of nine months. His name is Paul Mann. His doctor said, “There’s really nothing else we can do. He said, “Can’t you give me more radiation? Can’t you give me more chemo? Aren’t there any other drugs? Are there any clinical trials? The answer was, “No, there’s nothing. There is only hospice. Send for the priest.”
A friend of his knew me and said, “Would you give Paul a call? He just needs some moral support.” I began calling him and we spoke about once a week for three weeks. The poor guy was suffering and had cancer in 11 bones in his body. His right leg was completely swollen and obstructed with a tumor. He was miserable.
I said, “Paul, I don’t know if this is going to help you, but I know it’s not going to hurt you. I just can’t imagine based on my judgment and understanding of the scientific literature and all of the work that Doctors Kory and Marik have done that ivermectin would hurt you. It might help, but I can’t say.”
He said, “I'll give it a try.” He drove to Tennessee where you could get it without a prescription. He drove from where he lives in New York to Tennessee and paid cash for his ivermectin. He didn’t submit it to an insurance company. He didn’t tell his oncologist back in Missouri.
His ivermectin prescriptions were listed in his medical chart. How did that information get from the pharmacy in Tennessee to his chart in Missouri? They don’t know. But actually, somebody does know, and I'd like to know myself.
Anyway, he starts taking ivermectin. He doesn’t have any problems with it. I talk to him every week, “How are you feeling? How’s your leg? How’s the pain? He says, “No change. But I don’t know. It’s not quite as swollen. There’s pain everywhere. Maybe it’s getting a little bit better. It’s not necessarily getting worse.”
Fast forward to a two-month follow-up appointment at the clinic. They didn’t expect to see him. He’s feeling a little bit better. They do a PSA [Prostrate-Specific Antigen Test], which in the beginning was off the charts, maybe 700 or 800. At the time, they recommended him to hospice.
Mr. Jekielek: What exactly do those numbers mean, for the layperson?
Dr. Ruddy: Over four would be abnormal. What are we talking about here? Prostate cells normally secrete a protein, a prostate-specific antigen. It’s one of the things that they do. Cancer cells that originate in the prostate that are dividing rapidly and growing fast are spitting out PSA. It’s not that they’re contributing to the body economy in any way. It’s just they just want to multiply and divide. That’s the end of the story.
Your PSA levels start to rise, which is a screening marker. They will say, “Your PSA was four, and now it’s eight. Let’s do a prostate ultrasound.” The PSA can be a screen for the emergence of a tumor, but it can also be used, particularly at high levels, as evidence for cancer, response to cancer, or recurrence of cancer. His was supposed to be four, but it’s in the hundreds.
He goes back for a two-month appointment and it’s 1.3. They said, “You’re in biochemical remission.” He was not in complete remission, because he still had the bone metastasis, but this was good news. Slowly, he begins to improve. There is less pain and the swelling is down. He has a lot of other vaccine injuries, but he’s getting better.
Case 11 - 16: February 2025


Case 01:
78 year old man with Prostate Cancer Gleason 9 post prostatectomy, halted recurrence with "your low dose protocol"
"So there you have it. My PSA has stopped rising, still 1.2 and my annual scan and MRI in December were still clear after 3 months on the low dose protocol"
Case 02:
"Stage 4 Prostate fighter/survivor. On Iver and Fenben for 19 months. Cancer undetectable for past 12 months"
Case 03:
Brig Gen (Ret) USAF:
"my prostate cancer was eradicated using IVM, Fenben and Doxy"
Case 04:
"I have more positive results to report!"
"My husband got his PSA results back today. When he was diagnosed with prostate cancer his PSA was 5.8 now it is down to 4.1 after 32 days on Ivermectin and Fenbendazole"
Case 05:
"I was told by one local oncologist that I had 2 months to 2 years max"
"This past summer moved to high dose Ivermectin and I feel a huge improvement. I take 48-60mg daily and that had the affect of depressing my PSA significantly. But again, the real measure is I feel so much better"
Case 06:
"Praise the Lord for Dr.Makis and his wisdom, kind compassionate heart and generosity!! Wonderful start to a Happy New Year!"
"My husband has recently been diagnosed with Prostate Cancer.
We started:
Daily IVM 96mg
3x/week fenben 888mg
LDN
Orgovyx
PSA 538 (12/6/24) down to 290 (12/30/24)
"God Bless you and your beautiful family Dr.Makis!"
Case 10: December 2024
IVERMECTIN and FENBENDAZOLE Testimonial - 79 year old Canadian man with Stage 4 Prostate Cancer to Lymph nodes - everything is shrinking 4 months later!
79 year old British Columbia, Canada man diagnosed with Prostate Cancer, Gleason 8, “pushing against bladder wall, in lymph nodes, diagnosed late 2022 with a PSA peaking at 19.72.
Completed 28 treatments of radiation.
Was currently on hormone blockers (and Abiraterone) but tumor hasn’t shrunk.
Came to me for help and we got to work right away:
We started the following protocol:
- Ivermectin 1mg/kg/day
- Fenbendazole 444mg/day
- Melatonin 120mg/day
- IP6
- Artemisia
RESULTS:
“approaching 4 months on Ivermectin plus the other products”
“the oncologist report is that there is shrinkage in all areas (prostate, bladder wall and lymph nodes. He is not in remission as yet”.
The answer to the question is: continue Protocol until remission.






Case 9: December 2024
Case shared by Dr William Makis (X/Twitter):
IVERMECTIN and FENBENDAZOLE Testimonial - 60s year old Early Stage Prostate Cancer patient, Gleason 7, PSA drop 4.6 to 2.46 in 35 days!
60s year old Prostate Cancer patient, new diagnosis, Gleason 7 (3+4 and 4+3) with bilateral disease.
Major US Cancer Center gave this assessment:
“Overall, I think you will eventually come to need treatment of your prostate and because you appear to have bilateral disease, whole gland treatment is likely the best cancer strategy. Whether undergoing treatment now, or observing for a bit longer is the best route depends on your goals. We can consider radical prostatectomy…I’m less enthusiastic about radiation treatment as you are very young and likely to experience the secondary effects of radiation on your normal tissue as you age.”
Pretty standard stuff from a famous large US Cancer Centre that is stuck in the “Big Pharma guidelines” era with zero creative thought.
Patient did about a month of Fenbendazole 222mg Joe Tippens Protocol, then I got involved.
We started a high dose Ivermectin/Fenbendazole Protocol: 1mg/kg/day Ivermectin working up to 2mg/kg/day 888mg/day Fenbendazole.
Results one month later:
PSA went: 4.4 to 3.6 to 2.46 (lowest PSA level in 2 years!) 44% drop in PSA in about one month!
Transient visual symptoms affect some patients at Ivermectin doses above 60mg. They tend to go away with time.
Why the high dose Ivermectin/Fenbendazole regimen?
- young patient
- “A Gleason Score of 4+3 represents a moderately aggressive form of prostate cancer.”
- “bilateral disease at the prostate apex plus an additional region with cancer at the base.”
I find that Ivermectin and Fenbendazole are well tolerated and it’s very rare to see any issues on bloodwork.


Case 8: November 2024
Case sharing by Dr William Makis (X/Twitter):
IVERMECTIN and FENBENDAZOLE Testimonial - Stage 4 Prostate Cancer patient - PSA drops 1533 to 968 in 12 days - is fatigue and bone pain normal?
Stage 4 Prostate Cancer patient:
Started Ivermectin 1mg/kg and Fenbendazole 1000mg 3 days on 4 days off.
In 12 days PSA drops 1533 to 968 (37% drop). Abdominal cancer lymph nodes disappeared.
To be honest, that’s a lot of cancer cell killing over a very short period of time!!
That will cause a great deal of FATIGUE. That’s to be expected.
Bone pain? Also. As cancer cells in bone get killed, the inflammation can also cause bone pain. That will heal over time
This gentleman is on his way to becoming cancer free.


Case 7: November 2024
Case sharing by Dr William Makis (X/Twitter):
This was an Intermediate Dose Protocol, with a starting dose of Ivermectin of 1mg/kg/day and a Fenbendazole dose of 222mg to 444mg a day.
Case 6: October 2024
According to Dr William Makis (X/Twitter):
"We reached our goal of bringing my PSA Score down to 0.02 quite quickly. Doctors were surprised at how quickly this happened."
Case 5: December 2022 (Updated August 2023)
I wish to share more good news. Since our texts, December 2022/January 2023, my husband has had two more PSA tests. Here is the recap of his tests . Lenny’s PSA continues to drop, as he continues to take the Panacur C daily.
Lanny – PSA Test Results
8.0 = Lanny’s PSA upon being diagnosed with prostate cancer, August 2021 Before Lanny ‘started’ radiation therapy, he had THREE WHOLE MONTHS of Panacur C daily. Lanny’s doctor said any PSA under 1.0 is considered CANCER-FREE.
0.8 = Lanny’s PSA after 3 months of Panacur C — BEFORE radiation therapy, October 2021 Lanny told his doctor about taking Panacur C, when the doctor told Lanny that his PSA was 0.8 (according to that very doctor, this PSA denotes cancer-free; however, this same doctor gaffed off the Panacur C and cancer-free PSA with NO explanation).
0.09 = Lanny’s 30-DAY POST RADIATION PSA TEST, WHI CH DENOTES WAAAY CANCER-FREE, February 2022 Still no comment from any doctor . . . and I’m not anticipating one.
PSA Updates: 0.08 = February 2023
0.06 = June 2023
December 2022
Lanny was diagnosed with prostate cancer August 2021.
8.0 = Lanny’s PSA upon being diagnosed with prostate cancer.
Lanny’s doctor said any PSA under 1.0 is considered CANCER-FREE.
Before Lanny started radiation therapy, he had THREE MONTHS of Panacur C daily.
0.8 = Lanny’s PSA after 3 months of Panacur C — BEFORE radiation therapy.
Lanny told his doctor about taking Panacur C, when the doctor told Lanny that his PSA was 0.8 (which, according to that very doctor, this PSA denotes cancer-free; however, his doctor gaffed off the Panacur C and cancer-free PSA with NO explanation).
0.09 = Lanny’s 30-DAY POST RADIATION PSA TEST, WHICH DENOTES WAAAY CANCER-FREE.
Still no comment from any doctor and I’m not expecting any.
BTW, Lanny made a personal decision to continue using Panacur C as cancers are notorious for returning.

Case 4
Case 3: September , 2022
My husband was diagnosed 8 months ago.. Feb 1st of this year,, with a aggressive form of prostate cancer that had already metastasized into his lymph nodes and bones. He had fractures throughout his spine, ribs and pelvis. Adams bone scan showed cancer in his bones from his skull,, facial bones, clavicle, sternum right rib cage and most of his spine and pelvis.. His oncologist (we’ve since changed) waited 7 weeks to start any hormone therapy or chemotherapy and told us radiation wasn’t even an option. Only 6 rounds of doxi. He sat at our first office visit Feb 2nd and told my family that the #1 man in our lives would be gone within 18 months. His psa was 140, Gleason score of 9. He was diagnosed full blown stage 4-5 cancer. This was completely unacceptable. Absolutely devastating to our world. My husband is 55 yrs old.. We have 8 children and 8 grandchildren. Our last 2 kids had just moved out a year before.. this was our time.. We had always talked about IF cancer ever came about for either of us we would research alternative treatments. We fear medical poison as much as the cancer itself..
Thank God my husband’s cousin connected us with a angel that gave us all the information we needed on a product meant for animals, fenbendazole and even sent us 2 bottles of fenbendazole. Has since supplied us with bottles when needed.
So week 2 post diagnosis Adam started his 222mg of fenben.
Case 2: March, 2022
I received the awful news two years ago from my Urologist that I have prostate cancer. The doctor wanted to prepare me for surgery immediately, but I refused to go for surgery. I was very afraid and gave up hope at some point till I discovered the fenbendazole protocol. Thanks to reaching out to a couple of people who have been on the course before and after sharing their stories with me I decided to take the protocol on with full commitment.
Case 1: June, 2022
After having two scans and a biopsy and being told that I have stage 1 prostate cancer .I was told by a friend about Fenbendazole. After taking it for a year I had another M.R.I. and biopsy and the cancer is gone. Like a miracle.
Used: Fenbendazole , Vitamin E
My husband was diagnosed 8 months ago.. Feb 1st of this year,, with a aggressive form of prostate cancer that had already metastasized into his lymph nodes and bones. He had fractures throughout his spine, ribs and pelvis. Adams bone scan showed cancer in his bones from his skull,, facial bones, clavicle, sternum right rib cage and most of his spine and pelvis.. His oncologist (we’ve since changed) waited 7 weeks to start any hormone therapy or chemotherapy and told us radiation wasn’t even an option. Only 6 rounds of doxi. He sat at our first office visit Feb 2nd and told my family that the #1 man in our lives would be gone within 18 months. His psa was 140, Gleason score of 9. He was diagnosed full blown stage 4-5 cancer. This was completely unacceptable. Absolutely devastating to our world. My husband is 55 yrs old.. We have 8 children and 8 grandchildren. Our last 2 kids had just moved out a year before.. this was our time.. We had always talked about IF cancer ever came about for either of us we would research alternative treatments. We fear medical poison as much as the cancer itself..
Thank God my husband’s cousin connected us with a angel that gave us all the information we needed on a product meant for animals, fenbendazole and even sent us 2 bottles of fenbendazole. Has since supplied us with bottles when needed.
So week 2 post diagnosis Adam started his 222mg of fenben.
Case 2: March, 2022
I received the awful news two years ago from my Urologist that I have prostate cancer. The doctor wanted to prepare me for surgery immediately, but I refused to go for surgery. I was very afraid and gave up hope at some point till I discovered the fenbendazole protocol. Thanks to reaching out to a couple of people who have been on the course before and after sharing their stories with me I decided to take the protocol on with full commitment.
Case 1: June, 2022
After having two scans and a biopsy and being told that I have stage 1 prostate cancer .I was told by a friend about Fenbendazole. After taking it for a year I had another M.R.I. and biopsy and the cancer is gone. Like a miracle.
Used: Fenbendazole , Vitamin E
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