ParaNex Prevention - horse supplement - natural alternative to EPM drugs. Liquid dietary supplement contains a proprietary blend of naturally derived compounds and botanical extracts specifically formulated to aid in the prevention of Equine Protozoal Myeloencephalitis (EPM). As a natural anti-microbial, ParaNex Prevention is completely safe and creates an internal environment that is inhospitable to the infecting organism. Palatable formula works to inhibit the normal lifecycle of the protozoan and aids horse's own immune system in its ability to fight off and expel foreign invaders. Contains nanoparticles of elemental silver, kelp, ashwagandha, eleuthero, narcissus, muscavado, chlorophyllin, olive leaf and purified water. Suggested dosage: Apply 1/2 oz (14 sprays) twice daily to feed or directly in mouth. Not a drug; safe for all classes. Contains no banned ingredients as described by USEF and has no negative effect on performance. No limit to duration of use.