No need to travel to Japan, soil fermentation products Streptomyces avermitilis, a soil actinomycete will replicate beneficial effects.
https://pubmed.ncbi.nlm.nih.gov/26752081/
The more I read, the more it seems Ivermectin for humans should be taken for 2 days per month as a general parasitic cleaning regimen for the internal body, the side effects appear to be nil to zero.
Right now, in tablet form it appears to be sold out everywhere.
according to the article a soil sample from a golf course near the southeast coast of Honshu is the only place found to have the right strain of Streptomyces. I am sure you can buy that strain on the open market today. Interesting that all kinds of anti viral anti fungal anti bacterial anti inflammatory byproducts are being found in a humble soil bacteria