It would not trigger folic acid deficiency and ensuing anemia/leucopenia like sulfa medicines & pyrimethamine.Keep Reading › Exactly what is Marquis useful for in horses? Marquis (ponazuril) is indicated being an support in minimizing the scientific severity of Equine Protozoal Myeloencephalitis (EPM) caused by Sarcocystis neurona in horses; it i… Read More