Pill Identification by Imprints: m 50 Home Pill Identification by Imprints: m 50 2 results CHLOROTHIAZIDE 250 MG TABLET Side 1: M 50 Color: White Side 2: Shape: Round METOPROLOL SUCC ER 50 MG TAB Side 1: m 50 Color: White Side 2: Shape: Round Other Popular Drug Imprint logo and 21 GG 108 MT3 3670 MRK 54 262 NL 571 A80 POLY 210 5030 P63 LILLY 4165 T580 93 3127 M 171 151 EVK EXH 16 A 16 54 150 188 Advil 100 G1 PAR 823 3613 IL K 16 FL 72 LCI 1353 P 075 OP100 logo and 257 I73 MP 511 SZ 657 LP79 TENCON 93 2264 801 par 726 LANOXIN U3A