Oral medications are a successful erectile dysfunction treatment for many men. They include:
- Sildenafil (Viagra)
- Tadalafil (Adcirca, Cialis)
- Vardenafil (Levitra, Staxyn)
- Avanafil (Stendra)
All four medications enhance the effects of nitric oxide — a natural chemical your body produces that relaxes muscles in the penis. This increases blood flow and allows you to get an erection in response to sexual stimulation