rivaroxaban

From rivaro- +‎ -xaban (“blood coagulation factor Xa inhibitor”). The prefix is probably from Latin rīvārō, conjugation of rīvō (“I draw off, I withdraw”).

• (General American) IPA^(key): /ˌɹɪv.əˈɹɑk.səˌbæn/

rivaroxaban (uncountable)

1. (pharmacology) An anticoagulant drug C₁₉H₁₈ClN₃O₅S (trademark Xarelto) 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.

• “rivaroxaban”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.