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 I3 UPSHER-SMITH 0226 A80 U48 RX632 ZC 79 C P S 40 L437 A100 logo and 4805 MYLAN DE 20 MSD 117 L132 SZ 469 N020 54 277 I31 70 par 211 E794 L189 SJ 646 832 BM1 NOVO 291 467 PC20 L521 MYLAN DE 10 MP 446 Pharmics SEARLE 2762 UCB 500XR BI 6 GG 575 8 08 DMQ 20-10 GG 256 M161 L417