A good friend of mine was on Fenben and turmeric and after 3 yrs she is cancer free right along with her husband. both had 2 different types of lung cancer. he also did chemo. I had my dog on it as well at one time. Now I have put her on Ivermectin due to testing positive for Lyme although has never had any symptoms at all. I know during the fenben days with my other dog...i was told not to do both ivermectin and fenben at same time. I am unsure if that was correct information. It came from a group that focused on fenben and cancer. I am NOW giving fenben to a dog and a little bit to my other dog that tested positive but i have yet to give it at the same time..so i guess thats my question. I took fenben myself in higher doses around 1800mg and i was having severe heart palpitations so had to stop it. I can take one dose..222mg a couple times a week of it and was ok though. i can take ivermectin (12mg) with no issues daily.