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 n 575 ZD 15 307 ALKA SELTZER and logo LV OS 214 C26 PD 530 MYLAN GT 16 SUN808 MYLAN 1049 E 215 OMEPRAZOLE 40 mg N 20 128 L 128 GG854 GG854 25 A/P 25 / 15 AMBI 442 M 84 u10 Nitro-Dur 0.2 mg/hr M 59 50 mg 54 352 A3 301 E27 or E24 577 CM PROVERA 2.5 I 23 G 32 S 50 NP 5 B 304 RSN P 985