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 R531 A-P 1 AAT 051 L141 SB 4142 RG PY 2 502 TL600 1250 I32 54 299 M 120 N 08 P2 I 6 SZ 787 logo and 4364 D6 LOTREL 0364 94 par 121 TSL 0.4 U15 195 M205 I10 N020 M MC2 CENTRUM 54 661 UT 1 GPI S2 D 92 4209 PROCARDIA XL 90 GMZ E 2 MUTUAL 100 973