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 D Buprenorphine Transdermal System P291 358 B168 M 125 GSI500 T 57 OXYTROL 3.9 mg/day 54 735 A 6 I85 N 4 N 50 ZC 08 A92 L417 TENORETIC 904 AN248 51A HP51 54 960 TL 382 E 5 96 FL 20 805 312 PD 527 A 21 logo and 806 McNEIL Z320 20 mg AHI 2 806 L274 S4 B 683 GIL 0.5