Welcome, @badbrad. I moved your question about the use of ivermectin and other supplements to treat prostate cancer to this related discussion:
- Ivermectin for Prostate Cancer? (Being studied) https://connect.mayoclinic.org/discussion/ivermectin-for-prostate-cancer/

I encourage you to read the posts and resources shared in the discussion.

I see that you are looking into alternative therapies. There's a lot of information as well as misinformation circulating about ivermectin and its use as a treatment for cancer. Here's a clear and well-written article about repurposed drugs being researched for cancer.

- Separating fact from fiction: repurposed drugs in cancer treatment https://www.anticancerfund.org/en/blog/separating-fact-fiction-repurposed-drugs-cancer-treatment

Here's some guidance from Mayo Clinic experts that might help your evaluation of these therapies:
- Natural vs. safe: Why the two aren't the same https://www.mayoclinic.org/tests-procedures/complementary-alternative-medicine/in-depth/natural-vs-safe-health-remedies/art-20587690?utm_source=connect&utm_medium=l&utm_content=art-20587690&utm_campaign=healthguides
- Mayo Clinic on use of ivermectin or other dewormers to treat cancer https://connect.mayoclinic.org/blog/about-connect/newsfeed-post/mayo-clinic-on-use-of-ivermectin-or-other-dewormers-to-treat-cancer/