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

??????(?? ??? ????)? ???, ????? ? ???? ???? ??? ???? '????? ???'? ????? ???? ???(. Manufacture and sale of sildenafil citrate medicines often known as "generic Viagra" is popular in India, where Pfizer's patent assert would not implement. ??? ?? ?? ?? ??? ???? ??? ???? ??