Stop using vardenafil and call your doctor at once if you have: ringing in your ears, or sudden hearing loss; irregular heartbeat; swelling in your hands, ankles, or feet; shortness of breath; a light-headed feeling, like you might pass out; or seizure convulsions. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. Do not use any other medicine to treat impotence unless your doctor tells you to. Storage Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Dosing The dose of this medicine will be different for different patients.5 milligrams 10 milligrams 20 milligrams The best dose depends on your: age health medications Dosages Levitra is available as an oral tablet in several strengths. . Hearing loss or ringing in ears. Heart attack—pain or tightness in the chest, shoulders, arms, or jaw, nausea, shortness of breath, cold or clammy skin, feeling faint or lightheaded. . Vardenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, vardenafil w.