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 224 GX LL1 E 18 PN 54 177 I 135 A22 270 4 EB P 15 HP 148 G 0533 L416 HP 10 M211 E501 MYLAN 3205 A538 TL014 MAXINATE C 284 MYLAN 5220 44 334 ML 60 MUTUAL 901 P 985 2683 GM 2 G 020 WP 0320 T 150 NL 790 logo and KT b 701 Andrx 699 B 50 PA 918 U 785 E 171