The green oval ball football like shaped pill with imprint S 902 has been identified as Alprazolam 1mg supplied by Dava Pharmaceuticals Inc. Alprazolam are indicated for the management of anxiety disorder (a condition corresponding most closely to the APA Diagnostic and Statistical Manual [DSM-IIIR] diagnosis of generalized anxiety disorder) https://www.tudocelular.com/forum/threads/206452-Green-Football-Xanax-People-Should-Know-That/