Viagra is inefficient for me, why ?

[madman]

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Viagra is a great innovation for men's health. Since 1998 it has helped many persons. It is very efficient for 70% of the users. Professor Eric Allaire, internationally renowned for male impotence surgery will explain on this video what are the different reasons why Viagra, and other medicine of the same type, can be inefficient.


Professor Eric Allaire

*but the most important cause of failure of Viagra are vascular diseases

 

[madman]

The uninformed would have you believing this is mainly due to dependence or tolerance of the medication.

Age related ED: How to Prevent it and Manage it

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*No evidence has emerged concerning the development of any form of dependence or tolerance with the chronic use of PDE5 inhibitors