FDA Approves First EPM Treatment

The Food and Drug Administration (FDA) has approved the first drug to treat equine protozoal myeloencephalitis (EPM) in horses. Bayer Animal Health of Shawnee Mission, Kan., is the sponsor of the drug ponazuril, which will have the trade name Marquis.

EPM is a neurological disease caused by the single-celled protozoan parasite Sarcocystis neurona, which is widespread in North

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