?? ???? ??? ??? ???? ???? ???? ?? ????, ??? ???? ??? ???. ??? ??? ?????? ??? ???? ? ???? ???, ?? ???? ??? ???? ?? ? ??? ?????. ?? ???? ?? ???? ???? ???? ???? ??, ???? ?? ???? ??? ?? ???? ? ?????.??? ???? ??? ?, ?? ???? ??? ???? ?????. ??? ????????? ?? ????? ??? ??? ??? ????, ???? ??? ????? ??? ??? ?????. ??? ??? ?? ???, ??? ???? ??? ??? ???? ??? ??

?????????????? ???? ???? ??? ????. ???? ?????? ???? ????? ????? ???? ???????? ??? ?? ??????.Manufacture and sale of sildenafil citrate drugs often called "generic Viagra" is typical in India, in which Pfizer's patent declare won't implement.???????????? ??? ???????????????? ???? ??????? ?????????????????????????? ?? ???? ????.?????????? ??? ?? ???