Erectile dysfunction can also be treated with oral medications and penile implants. Oral erectile dysfunction drugs, such as Fildena, only work in roughly 70% of erectile dysfunction patients. Injection therapy, on the other hand, involves injecting medications directly into the penis. Despite the fact that they are uncomfortable and require surgery, penile implants are only recommended after all other options have been exhausted. Furthermore, the risks linked with this type of treatment are minor.