Levitra and Viagra to discuss erectile dysfunction & 39; n & 39; have no significant impact on the quality of semen, according to a recent study by January 17, 2008 edition of the Journal of Urology.

Viagra (sildenafil), Pfizer and Levitra (vardenafil) Bayer Pharma are phosphodiesterase-5-inhibitor, the first line of treatment in the treatment of erectile dysfunction.

The study of the management of Jarvi K of Mount Sinai Hospital, Toronto, Canada, and the staff & 39; was to analyze whether these drugs & 39; n & 39; would not adversely affect sperm quality among men, who, in her reproductive years.

For the randomised, double-blind, placebo-controlled, & 39; study, the researchers recruited 200 men aged 15 to 64 years with or without ED accepted, 20 mg or 100 mg Viagra or Levitra placebo for six months.

All adult males were * sperm and semen samples.

The researchers likened the characteristics of the seeds and reproductive hormones, and, later, before the start of treatment.

The of men whose sperm concentration paid 50 percent or more in the group Levitra was higher than the 0.07 percent unemployment rate for males in the control group, & 39; analysis shows. In addition, Levitra

In n & 39; have no clinically significant effect on all other parameters seeds or reproducing at levels of hormones & 39;.

Similar effects were adult males * accepts that the Viagra.

& quot; In particular, application & 39; vardenafil (Levitra) for 6 months n & 39; is not likely to affect the concentration of sperm, or a total of sperm or sperm count by the morphology and sperm motility. The reproductive hormones were also given & quot;, write the researchers in their report.

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