Someone asked me that question, Doc., and my answer was about the same as yours as I haven't experimented with it, either.
I don't see why I would try to go with something else if I knew something worked.
Barefoot's dewormer works. Clarks dewormer works. I just prefer Barefoot's because it seems to work better. If one can't get it, then I guess they have to go with CLarks?
For the person who asked this question it is because of the black walnut, wormwood and cloves combination that goes to all the body, everywhere. This is the meaning of "systemic" as in another post on this forum. If one has symptoms of liver pain, then I think they have liver bugs. I certainly did. These dewormers get the liver bugs.
Then there are some of the dewormers that work just in the intestine.
Cleaning the colon out is first on the agenda. Then right along with it, take the dewormer for 2 weeks before doing a liver flush.
Liver flushes have been very safe for me. Have never had a problem doing them.
Prefer the coke flush because it is very easy and nothing ever got caught in the common bile duct. Really nothing to worry about IMO.
The olive oil is a bit hard to get down but one gets used to it. Certainly better than staying sick.
Hope this helps.