Pill Identification by Imprints: 381 b Home Pill Identification by Imprints: 381 b 1 result MEPERIDINE 50 MG TABLET Side 1: 381 b Color: White Side 2: Shape: Round Other Popular Drug Imprint I33 DXL KU128 n 357 UPSHER-SMITH 0227 GILEAD 4331 LB2 M 060 G 304 713 2101 V LILLY 4115 RI2 ZYBAN 150 M77 339 252 WPI 3510 Caltrate M D36 ZA-45 HYZAAR K1 par 210 976 K 9 M MN2 M 3 M 155 B 546 P-D 915 or 624 638 n005 M31 West-ward 477 T500 PREMPRO RX 554 ML Z320 20 mg