Pill Identification by Imprints: M 13 Home Pill Identification by Imprints: M 13 2 results TOLBUTAMIDE 500 MG TABLET Side 1: M 13 Color: White Side 2: Shape: Round TOLBUTAMIDE 500 MG TABLET Side 1: M 13 Color: White Side 2: Shape: Round Other Popular Drug Imprint logo 1114 B 074 M CL3 PREMARIN 0.9 Tofranil-PM 125 mg 391 R50 MYLAN FE 134 P 33 PAR 823 M 61 CM logo and HC P-D 915 or 624 logo and 048 2172 LU I 135 A 45 M 52 AC 42 ZE68 M211 Y01 ZD 16 RI 37 45 WPI 3629 A333 52 Y MYLAN DE 20 7/5 C370 8N N020 M A12 107 Q400 5 VALIUM logo and 115