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 IBU 800 S 5 ella 1451 CL 32 logo and 34 M BU1 CARDIZEM MYLAN 186 PROVIGIL W121 logo and 200 logo 1117 CG LK100 RX125 54 372 M 444 TCL 355 NORPRAMIN 25 D 5 1078 HCQS T1 100 S 25 271 I63 325/40 U U West-ward 140 Celgene/ 150mg Respa Prenate 0425 CAR/RX E 5000 F 8 IP 102 U 135 A029