??? ???? ?? ?? ???: ??, ???, ?? ? ?? ????? ???;?? ??? ?? ??? ?? ?????? ??? ?? ??? ?? ???. ??? ??? ??? ??? ??? ????. ?? ??, ??? ??, ?? ??, ?? ???? ??? ???? ???.;? ???? ??;????(Cialis)? ???? ??? ???? ? ???? ????, ?? ??? ???? ???? ??? ????. ‘??? ?’?? ??? ??? ?? ??? ??? ?????.;? ????? ??;- ? ?? ?? ??;- ?? ??? ???;- ?? ??? ?? ?? ??;- ??? ?? ??;? ???

In Oct 2007, the FDA announced which the labeling for all PDE5 inhibitors, together with tadalafil, demands a more outstanding warning on the potential threat of unexpected hearing decline as the result of publish-advertising experiences of short term deafness related to use of PDE5 inhibitors.[19]Some exploration suggests the hyperlink among blood