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 W 785 M33 H 012 WW 41 CL 022 n 351 B135 C 4 I 05 E227 54 899 S 434 AF FE FORTE 832 BC20 MYLAN PR60 TA1M W 1033 CYP 870 MCR 105 TL388 PLIVA 398 A1 or A2 or A3 or A4 GG 450 TH2M A257 MDV logo and 4357 VP 25 M 59 44 449 ZA-43 NORVASC 5 IP 271 logo and 256 FAM250 WATSON 461 RD 54 T21 MYLAN 1258