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 T4 AMGEN W-7 V233 logo and 255 ZF 43 AR 102 MYLAN 7010 MP 88 B 260 N 740 COUMADIN 2 1/2 MENTHOL barr 324 S190 M377 MYLAN AC I 13 NU-IRON 150 0291 54 647 OMJ 100 MYLAN A3 266/18 XR 50 ZL 1 209 or 274 CL 44 logo and 4366 C152 44 615 or 44 544 597 ZC 81 F 84 2.5/1000 b 98 GS TF7 54 411 L 5 BPI 152 221