Erectile dysfunction, also oftentimes referred to as ED or impotence, is a sexual disorder characterized by the inability to develop or maintain an erection of the penis during sexual act. Usually, erectile dysfunction is caused by psychological factors, such as depression and stress, diabetes and other health problems, and, most frequently, aging.

In the opinion of doctors, the most widespread health conditions leading to ED, are:

• neurogenic disorders
• cavernosal disorders
• kidney failure

Also, unhealthy lifestyles, such as smoking, drug abuse and alcohol abuse.

The treatment of erectile dysfunction mainly depends on the cause of the disorder. Distinguished are 3 types of treatment: medication, surgery and use of special devices.

Since surgery is only used as a last resort, when all other methods have failed, and devices are not suitable for all men, medication is considered to be the best way of ED treatment.

Many pharmaceutical companies have come up with erectile dysfunction drug in the past few decades, but the most popular pills are Viagra, Cialis and Levitra. All of them are PDE5 inhibitors that work by blocking the action of phosphodiesterase, which causes cyclic guanosine monophosphate (cGMP)  to degrade.

You can learn more about each of these drugs here.

IFyou want to know my personal opinion, the best ED pill is Cialis because it is highly effective and lasts for up to 36 hours. I am used to taking this pill before the weekend, so I do not have to worry about my sexual function and my wife's feelings.

This drug is really different from Viagra and Levitra in terms of action. This is why you have to follow the prescription. I also recommend you try this pill with your wife or girlfriend, or at least someone who knows you very well because Cialis might sometimes cause prolonged erection.

However, if this pill was prescribed to you by a doctor, you'll never again want to try anything else!