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 Ortho 214 ZF 43 MYLAN 777 SANKYO M F1 K 27 GG850 W-30 BL L1 AC 355 logo and 509 GX FC3 906 BEACH 1111 WW 174 SZ Z7 KU 486 L437 M Z2 PFIZER 399 518 187 MP 79 HBP FLU 713 logo and 3090 GG638 R 7.5 2531 M A7 MYLAN 6899 M 40 V264 LILLY 4420 ZOVIRAX 800 GG 505 LL 254 1462 MP/974 5 7