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 15/500 G 30 F23 SEROQUEL 100 NOVAST L187 LAN R 1 XENICAL 120 MP 10 RX 830 0 8 ZC 03 A 214 M C4 Dia B WPI 867 IN150 8119 ALDACTAZIDE 25 logo 1117 M 753 IP207 44-338 L7 2063 V A 25 M 76 GX LL7 LU E01 L124 664 TZ 4 297 ZC 79 GX EG3 CL 37 100 P L logo and 804 747