Does "xarelto" cause an increase of weight?

Xarelto: Weight gain is not a side effect of Xarelto and it should not cause this

No, slows clotting: by inhibiting factor Xa, the last step in clot formation; is Rxed because of evidence/concern of forming clots inside blood vessels, not just at blood vessel breaks, thus bleeding is ↑ed because Xarelto slows clotting at all locations. It does NOT thin blood; blood viscosity does not change. For more details study PI (Prescribing Information), at http://www.janssenmd.com/pdf/xarelto/XARELTO_PI.pdf