The body takes longer to absorb it after a high-fat meal or alcohol. This allows the smooth muscles in the penis to relax and fill with blood. In some cases, ED can cause a strain on relationships and impact self-esteem. Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. Both options require valid medical documentation, but some online services only require a health questionnaire to be filled out and reviewed for approval—meaning no face-to-face video interaction is needed. Payment options: Consider how you’d like to pay. These are commonly prescribed for an enlarged prostate or male pattern baldness.Financial assistance Next steps Viagra (sildenafil) is a brand-name oral tablet prescribed for erectile dysfunction. The cost of the drug with and without insurance can depend on . By Ginger Skinner Last updated: June 14, If you’re looking for a less costly Viagra, you might want to ask your doctor about sildenafil. It’s the active ingredient in both . Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles .