Your best bet is to do a google search on "Amprolium". For anyone to say that it is not a medicine is quite a stretch of the imagination. It is a Thiamine blocker. Thiamine is a vitamin. The cocci need thiamine to replicate. There are some pretty strong feelings on both sides of the fence regarding use of Amprolium. That's a choice you'll have to make on your own, hopefully after doing some homework.