Pill Identification by Imprints: C28 Home Pill Identification by Imprints: C28 2 results PIOGLITAZONE-METFORMIN 15-850 Side 1: C28 Color: White Side 2: Shape: Oblong PIOGLITAZONE-METFORMIN 15-850 Side 1: C28 Color: White Side 2: Shape: Oblong Other Popular Drug Imprint E 52 B or 0832 Z 5 B 35 299 SS-1 5971 V Q400 BMS 250 mg ESL200 ALG 263 CYP 193 L 179 L199 RN5 3974 logo and 660 AZ 011 logo and 12 SEROQUEL 92 PX AR 100 ARI 20 WPI 844 MYLAN 6726 CL90 D 88 C133 54 420 GG 264 N 740 GPI LB XELODA GG 450 922 KU 335 T580 44-292