This increased blood flow can cause an erection. Drinking alcohol can increase certain side effects of vardenafil. Vardenafil is used to treat erectile dysfunction impotence; inability to get or keep an erection in men. After you remove the tablet from the blister package, immediately place it on your tongue and close your mouth. Do not swallow Staxyn with liquid. Interactions What drugs and food should I avoid while taking Levitra Vardenafil? If you have chest pain during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise.Hearing loss, ringing in ears or tightness in the chest, shoulders, arms, or jaw,, shortness of breath, or clammy skin, feeling faint or lightheaded Heart rhythm . · Description and Brand Names Drug information provided by: Merative, Micromedex ® US Brand Name Levitra Staxyn Descriptions Vardenafil is used to treat . The recommended starting dose of Levitra is 10 mg, taken orally, as needed, approximately 60 minutes before sexual activity. The dose may be increased to .