HI My 29 yr old pony/arab/quarter horse was diagnosed w/cushings in 1998! He is on ciprohepdadine and thyro-L, joint supplements and hoof supplements. I've been reading about chaste tree berry for cushing horses. Tried it but he won't eat it( and this horse eats anything). I read that the chaste tree berry can be helpful...who has tried it and how did you feed it? Thanks, Mary