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 HYD 40 WATSON 345 RP 115 N192 PREMPRO 0.625/5 or PREMARIN 0.625 BP 643 0475 L227 AR A 75 NPR LE 375 E1 V201 LBH 10 mg 3205 E224 M 944 2172 M 2 DAN 5782 POLY 212 OMP 20 140mg MINOXIDIL 10 ML 89 54 271 0813 SZ 225 A-009 15 BY1 174 BN2 L374 IP 305 logo and 54 LAMISIL U 137 L340 44 69 MYLAN 199