Pill Identification by Imprints: I31 Home Pill Identification by Imprints: I31 1 result FELODIPINE ER 2.5 MG TABLET Side 1: I31 Color: Yellow Side 2: Shape: Round Other Popular Drug Imprint 64 Rifampin 300 325 logo and 100 G52 0524 0405 GM 4 GG 705 U17 Q50 287 Neurontin 100 mg XANAX 0.25 ALKA SELTZER and logo A694 52 978 Estradiol 0.0375 mg/day (Once Weekly) SZ 418 GLYBUR 100 mg D10 DAN 20 1117 Dia B L U KU 181 SE 5 C3 448 LILLY 3251 L355 511 PFD 267 mg M 312 C 89 770 228 TF TF GX EF3