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 Zegerid IBgard GG 65 DAN 5556 KC M10 E 404 M 15 1140 PAD 0107 735 KEFLEX 250 mg BMS 200 mg WELLBUTRIN XL 300 TV A19 E550 606 W 516 WPI 338 CB7 G 11 TMC125 P297 32 logo and 637 C280 L 3 A 39 RX904 logo 272 D K 31 54 948 BY1 KPI 284 N 344 YS 03 681 539 L485 UCB 580 RG78