rivaroxaban

noun

riv·​a·​rox·​a·​ban ˌriv-ə-ˈräk-sə-ˌban 

: an anticoagulant drug C₁₉H₁₈ClN₃O₅S that inhibits the activity of factor X and is taken orally especially to prevent and treat deep vein thrombosis and pulmonary embolism and to reduce the risk of stroke related to atrial fibrillation

Note: Rivaroxaban is marketed under the trademark Xarelto.