Tell your doctor if you have ever been advised by a health care professional to avoid sexual activity for medical reasons. Do not break, crush, or chew it. If you are taking the rapidly disintegrating tablets, your doctor will not be able to adjust your dose because the rapidly disintegrating tablets are only available in one strength. You may take this medicine with or without food. Be sure that you receive only the type of vardenafil that was prescribed by your doctor. Ask your pharmacist if you have any questions about the type of vardenafil you were given. Also tell your doctor if you or any of your family members have or have ever had long QT syndrome a heart condition or retinitis pigmentosus an eye disease or if you have ever had severe vision loss, especially if you were told that the vision loss was caused by a blockage of blood flow to the nerves that help you see.In combination with sexual stimulation, vardenafil works by increasing blood flow to the penis to help a man get and keep an test1.ru drug does not protect against . Brand names Why is this medication prescribed? Vardenafil is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Vardenafil is in a .  · Vardenafil is used to treat men with erectile dysfunction (sexual impotence). It belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. These .