Pill Identification by Imprints: RI91 Home Pill Identification by Imprints: RI91 2 results MINOCYCLINE HCL 100 MG TABLET Side 1: RI91 Color: Yellow Side 2: Shape: Oval MINOCYCLINE HCL 100 MG TABLET Side 1: RI91 Color: Yellow Side 2: Shape: Oval Other Popular Drug Imprint Y04 R135 922 TIGAN GG 929 C57 Niraparib JSP 545 230 146 826 208 IB 200 RI20 C 5 Neurontin 100 mg CTI 113 WPI 3631 1251 AS+ SC 93 3127 CYP 179 54 552 982 or 983 44 159 B 260 Eisai VH3 CL 23 B 073 AP043 75mg PROCARDIA XL 30 44 386 PR 1048 H 604 M D18 ZANTAC 150 A029