Answer: Vardenafil is very safe as long as you take it correctly. You can take this medicine with or without food 30 minutes before sex, depending on the dose. Avanafil Stendra. Some services offer a subscription option where they’ll send your medications every month at a discount. Oral medicines for ED usually work well and cause few side effects.Products and services. Erectile dysfunction: Viagra and other oral medications. By Mayo Clinic Staff. Medicines that you take by mouth are called oral medicines. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction (ED). Oral medicines for ED . Vardenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, vardenafil works by increasing blood flow to the penis to help a man get and keep an erection. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). Sample image. Levitra, 10 MG Tablet. How Amazon Pharmacy works. Save time, let us bring the pharmacy to you. Amazon Prime members get additional benefits including FREE 2-Day Delivery and low prices on medications. About this medication. VARDENAFIL (var DEN a fil) treats erectile dysfunction (ED).