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 M164 44 334 MUTUAL 100 KPI 207 GG 134 1048 CPC 77 Butrans 20mcg/hour 60mg 54 892 IG272 G 2001 SMV WATSON 347 G 21 54 647 POML 66 Y APO 020 PLIVA LCI 1311 P11 EMBEDA ZA19 A68 CL 39 300 826 C 200 G821 S592 Pepto Bismol WFHC H 147 5686 70 A-294 S 225 PAR 821 PAR 869 ER