vardenafil

noun

var·​den·​a·​fil vär-ˈden-ə-ˌfil 

: a drug that is used in the form of its hydrated hydrochloride C₂₃H₃₂N₆O₄S·HCl·3H₂O to treat erectile dysfunction and that functions similarly to sildenafil

Note: Vardenafil is marketed under the trademark Levitra.