Pill Identification by Imprints: 521 Home Pill Identification by Imprints: 521 1 result SINEMET CR 50-200 TABLET Side 1: 521 Color: Purple Side 2: Shape: Oval Other Popular Drug Imprint 1 10 13 30 460 CLA500 44 148 T 543 C 735 4895 60 T SL 50 EC 297 CP 406 ZD 15 HE1 AX m 154 MYLAN FE 200 P 300 13 31 B300 ELP 10 0866 A 50 E612 5 554 44413 839 AA 76 B192 ZE 49 C 85 P 075 EP 133 logo and 3116 b 775 033 MCR 313 IP 304 MYLAN 3075