Viagra was studied on more than 3000 man allover the world in the age 19-87 that has ED from 6 month to 26 years! The origin of erectile dysfunction was organic, psychological and both.
The study results showed that Viagra (Sildenafil) is very effective in ED treatment and also helps to improve quality of sexual act. Very amazing was the fact that it enhanced erection in men after spinal cord injury, patients with diabetes and other serious medical conditions. Viagra helped to treat ED in men taking several different medication too.
Viagra (Sildenafil) acts only in the case of sexual excitement. 85% of patients reports enhancement of erection end quality of sexual act. 50mg or 100mg dosages are adsorbed very well and proved to be very effective in ED treatment. The results of the one year study on more than 500 men showed that Viagra saves its effectiveness during long period of time.
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