This is important for your overall health and safety, as certain medications can negatively interact with each other or cause existing conditions to worsen. You take one 2. Viagra is the most widely counterfeited drug on the market. Using the ED medicines we prescribe puts you at greater risk of severe reactions such as extreme dizziness, fainting, heart attack, and stroke. These drugs also have to be specially labeled, so many online pharmacy companies have already elected not to deliver them.Viagra, Cialis, Levitra, and Stendra can help a person get and maintain an erection. Learn about the similarities and differences between these medications. Lemonaid can prescribe sildenafil (generic Viagra), tadalafil (generic Cialis), and vardenafil (generic Levitra). You can get a prescription online following a quick and . 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 .