Levitra Levitra is a member of the class of drugs known as phosphodiesterase type 5 inhibitors. It's a common method of dealing with impotence issues (male impotence). A sufficient penile erection for sexual activity can be attained with its aid. This is accomplished by increasing blood flow to the penis when a guy taking the medicine becomes sexually stimulated. It does not stimulate sexual desire and works only when sexual stimulus is present. Allergy to vardenafil or any of the other ingredients; Current or recent use of any medication containing nitrates (e.g., amyl nitrite "poppers," isosorbide mononitrate, isosorbide dinitrate, nitroglycerin, nitric oxide); Current or recent use of cobicistat, atazanavir, indinavir, ritonavir, or saquina (for HIV infection)
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