Can Moringa Oleifera And Warafin Be Taken Together?

I am wondering if there are any adverse reactions between moringa oleifera and Warafin. Both my parents are on Warafin, one for repeated pulmonary emolus and the other for atrial fibrillation. My brother is a distrubutor for Zija and they market a Smart Drink and an XM3 capsule made from the moringa oleifera tree. Just wondering if my parents should be taking it. Thanks!