We considered cost, medications available, and whether generic versions were offered to help reduce costs. Erectile dysfunction can be caused by a variety of factors , including age, cardiovascular problems, diabetes, and other conditions that affect nerve function or blood flow. Our expert can discuss other doses or medications that could work better for you, and you can switch any time. If you are looking for an ED drug that works around the clock, Cialis or Tadalafil might be the best option for you. Finding an online ED provider can feel overwhelming. You are encouraged to report adverse events related to Viatris products by calling U. Medical consultations were also taken into consideration, as PDE5 inhibitors require a valid prescription from a licensed medical provider.Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung . Online pharmacies can ship Viagra® directly to your door in discreet packaging for maximum convenience. What does Viagra® do? Viagra®, a brand-name ED drug . Check Your Pills Check your pills to be sure they’re brand-name VIAGRA—not the generic. If you think your brand-name prescription has been filled with a generic, talk to your .