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 44 226 54 311 838 TL 218 L20 Pin-X WPI 3508 XANAX 0.25 Z or M CPC 64 CITRACAL FI D 50 MINOCYCLINE 100 N 100 b 974 logo and 324 F 8 M150 IN150 H 106 5 mg 5mg MYLAN 6900 35 84 N 2 54 356 KC M20 ALDACTAZIDE 25 SZ244 barr 400 mg PH 044 GIL 0.5 L950 L150 GG 507 E 137 Dulcolax IL 3583 A/P 25 / 15 E 117