[url=https://www.medzforce.com/product/fildena-100mg-purple-pill/]Fildena 100mg[/url] carries Sildenafil.
Sildenafil belongs to the category of Phosphodiesterase kind five (PDE5) inhibitors.
The PDE5 enzyme inhibition will increase cyclic Guanosine Monophosphate (cGMP) levels.