We also looked at additional services, such as access to digital pharmacies and home delivery options. An erection results from an increase in blood flow to the penis. Payment options: Consider how you’d like to pay. These PDE5 inhibitors may cause headache, flushing, drop in blood pressure, or other adverse effects. You can see an in-person provider or speak with a doctor virtually.Generic sildenafil is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. Get sildenafil for as low as $, which is 95% . Depending on your symptoms and needs, you may be prescribed Viagra, sildenafil, Cialis, tadalafil, Stendra, paroxetine, or a combination of tadalafil and sildenafil, available as . Optum Store Sildenafil If you are experiencing the symptoms of erectile dysfunction (ED), you may have considered using Viagra or a similar ED medication as a possible .