Pill Identification by Imprints: STO 50 Home Pill Identification by Imprints: STO 50 1 result CARBIDOPA-LEVODOPA-ENTACAPONE 12.5-50-200 MG TAB Side 1: STO 50 Color: Brownish Side 2: Shape: Round Other Popular Drug Imprint 558 571 54 137 RX124 GG 181 544 PAL 3 Relagesic U26 MYLAN 2537 ZA-09 N 943 NL 680 242 256 ML 33 TUSSIGON Y01 311 AV X 38 TL 384 CL 6 WC 400mg 5904 V G 11 LCI 1311 AR 788 B106 MP 657 MYLAN 6900 logo and 76 GG 622 EL I113 54 351 RD 71 AN 513 DISTA 3104 813