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 114 RJ73 5030 logo and 500 AA 71 RU40 MP 40 356 1 RP RX 505 WATSON 409 54 122 Butrans 7.5 mcg/hour RX126 1052 GG 439 A 325 C 286 M RE2 L463 logo and 199 SLOW- MAG S591 031 MCR 109 W 718 ZA-18 LAN WATSON 606 FAM250 EL 15 518 LCI 1354 I 21 755 logo and 150 447 ZC 76 logo YH Organon