Pill Identification by Imprints: C 91 Home Pill Identification by Imprints: C 91 2 results RIVASTIGMINE 1.5 MG CAPSULE Side 1: C 91 Color: Yellow Side 2: Shape: Oblong RIVASTIGMINE 1.5 MG CAPSULE Side 1: C 91 Color: Yellow Side 2: Shape: Oblong Other Popular Drug Imprint 50 mg 8311 logo and S25 1000 M P295 16 CLOM 25 200 METHADOSE 40 ML 59 MP 27 MYLAN 5280 44-455 ZC56 E658 ZYRTEC D 8 07 872 PA46 RX 901 5225 ACTIQ 1200 EP 127 A 20 PD 157 AC 132 37 cor 212 L 40 CL 57 MYLAN 1020 Advil A 16 W 112 CL 42 CYP 190 L321 GG 930 4833M P-D 915 or 624 JKI 11 L-FLAV