Pill Identification by Imprints: 4221 Home Pill Identification by Imprints: 4221 1 result KOMBIGLYZE XR 5-500 MG TABLET Side 1: 5/500 Color: Light Brown Side 2: 4221 Shape: Oblong Other Popular Drug Imprint BARRIER 4186 logo and 96 V360 31 81 718 18mg U-S 500 A-008 10 LL 253 KLX GG 977 MYLAN 1700 Andrx 640 FIORINAL CODEINE GG C6 50 223 G 304 E 39 GX EX1 GGN2 M32 JKI 11 5 mg GG 624 M 753 H151 ZE68 GG C9 MYLAN GT 8 CM HLP 40 NVR RE 75 EP 321 M53 HP 17 93 7336 PERCOCET 5 142