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 L149 RG78 MARGESIC R-263 COMTAN 153 A30 N 11 Z16 MP 14 OTSUKA 30 1300 316 318 WATSON 853 GG N7 ALV 317 54 463 W 1032 63 IP 116 292 Z12 QP 146 MYLAN 2150 C2 XP650 BMS 1966 0145 S 111 LMT or LAMICTAL 10/325 IMA 400 212 212 BMS NL 4 540 MUTUAL 902 188 WC 400mg