??? ?? ???? ?? ???: ??, ???, ??? ?? ???? ???;??? ?? ?? ??? ?? ????? ??? ???? ????. ??? ???? ??? ??? ??? ????. ?? ??, ???, ?? ??, ?? ???? ??? ???? ???.;? ??????;????(Cialis)? ????? ????? ? ED ????, ?? 36?? ?? ???? ??? ????. ‘??? ?’?? ??? ??? ? ?? ?? ?????.;? ????? ??;- ?? ??: 36??;- ?? ??? ???;- ?? ??? ?? ?? ??;- ??? ?? ??;? ??? ?????? ?? 30~60?

Viagra can reduce blood circulation on the optic nerve of the attention, producing sudden vision reduction. This has transpired in a small number of people today having sildenafil, nearly all of whom also had cardiovascular disease, diabetes, high blood pressure, substantial cholesterol, or specific pre-existing eye challenges, and in individuals t