There are four main drugs which treat erectile dysfunction. These are all part of a group of drugs called PDE5 inhibitors.
They are
- Sildenafil - this is the ingredient in Viagra. It is available generically, which is cheaper than the branded version.
- Tadalafil - this is the ingredient in Cialis. It is available generically, which is cheaper than the branded version.
- Vardenafil - this is the ingredient in Levitra. It is available generically, which is cheaper than the branded version.
- Avanafil - this is the ingredient in Spedra.
To read more about erectile dysfunction and treatments available, read our erectile dysfunction page.