Yes, I give my horse a blood, liver, kidney and spleen cleanser and a parasite, yeast and fungal herbal supplements, used for us peeps primarily. These were 2 seperate herbal supplements available in capsules, not cost effective in that form for giving to horses.
I spoke with the owners of the company who make them and they came up with the idea to take out the herbs that deal with digestion (in peeps), as horses don't need this, and just use the herbs that deal directly with the issues. They then sent me the 2 in powder form for me to use as appropiate.
My horse had anemia, and a high liver enzyeme count. His body became very toxic from repeated medications like anti-biotics, pain killers, sedataives, vaccines and worming paste.
I noticed that all the medication he was prescribed had a warning on the box
"Do not administer to animals destined for human consumtion" Meaning the toxins don't just accumulate and remain in the main cleaning organs of the body but also in the muscles, (the meat).
These 2 products are extremely effective and gentle on the human body, and having used these myself, felt he could benefit from them too, if they were adapted to suit.
I now mix these 2 herbal supplements together to give and effective cleanse and detox, as well as staying on top of worms. He has 7.5mg a day in a small feed and in a months time we will do further blood tests to see what difference there is. Once his system is clean he will go onto a daily maintence dose of about 3.5 mg. The dosage is worked out on weight which approx 5 times that of a human.