I’ve purchased and used horse paste from Tractorsupply.com.
I’ve purchased and used ivermectin and other antibiotics from
https://www.alldaychemist.com/catalogsearch/result/?q=ivermectin
Good experience.
My Sis says that when you have to take something that tastes horrible you can use what she calls a "capsule machine" to put the awful-tasting substance into, and then just swallow like regular gel-caps. . Have you ever heard of that?
If horse paste tastes as bad as some folks are saying, I'm thinking that being able to take it in capsule form would be a real Godsenf.