Here are some key factors to consider when deciding: Pricing: Know how much your monthly supply will cost with shipping and tax. Common side effects include headache, facial flushing, indigestion, and dizziness. Recent heart or blood vessel problems. A newer form of the medicine that dissolves on the tongue might work faster than the pill that you swallow. It depends on the platform and insurance provider. When oral medications might not be safe Check with your health care team before you take any medicine for erectile dysfunction. Most companies have an FAQ or shipping policy page you can reference to learn whether discreet packaging is available.7 Over The Counter Medications for ED. Depending on the cause of erectile dysfunction, the most effective treatment can vary. Typically, the best way to treat erectile dysfunction is to address the underlying cause. Second is by using oral medications like Viagra® (sildenafil), Cialis® (tadalafil), or Levitra® (vardenafil), all of which are. Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. This boosts blood flow and helps you get an erection from sexual activity. How oral medicines differMissing: usa. Is there OTC Viagra? OTC Viagra alternatives FDA warnings ED medications Other treatments Prevention tips Talk with a doctor FAQ Takeaway We did a deep dive into five over-the-counter.