Pill Identification by Imprints: C31 Home Pill Identification by Imprints: C31 5 results CARVEDILOL 3.125 MG TABLET Side 1: M Color: Blue Side 2: C31 Shape: Round CARVEDILOL 3.125 MG TABLET Side 1: M Color: Blue Side 2: C31 Shape: Round CARVEDILOL 3.125 MG TABLET Side 1: M Color: Blue Side 2: C31 Shape: Round CARVEDILOL 3.125 MG TABLET Side 1: M Color: Blue Side 2: C31 Shape: Round ETHAMBUTOL HCL 100 MG TABLET Side 1: LU Color: White Side 2: C31 Shape: Round Other Popular Drug Imprint M 221 438 Macrobid O20 456 SEROQUEL 50 M D9 WAR 1 GX LL1 logo and 4960 AP205 L193 MYLAN 334 CL 31 ORTHO or ORTHO P MP 903 logo and 038 DSC L60 WW929 AA 820 SANDOZ 625 15 XL 54 251 1073 10/1000 EM 5 1020 BMS 300 MG A92 TZ 4 C C IDT O 5 BHCP 713 E61 10 00 93 3193 GS EUG 225 460 C148 Tylenol 500