Pill Identification by Imprints: M 31 Home Pill Identification by Imprints: M 31 7 results ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round ALLOPURINOL 100 MG TABLET Side 1: M 31 Color: White Side 2: Shape: Round Other Popular Drug Imprint ZA-45 V S ZIKS 633 H5/325 M3 logo and 81 73 00 MYLAN 5211 FLUOXETINE 40mg GS JT KADIAN 53 93 27 K 55 CALAN C 10 U 128 147 VBZ 80 MSD 275 logo and 202 KEFLEX 250 mg C5 or C2 VS 80 K 2 N 947 743 025 KU 260 C533 logo 0023 93 7373 L 349 440 400 APO 021 93-6 RX724 500 MG CL 25