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 SZ 659 MYLAN 5220 Meta 1490 U28 180 mg 57 55 707 44-367 EP UCB 579 XANAX 0.25 122 L898 ASC 116 G 3720 H 008 AR 102 139 CL 206 E 10 K 102 IG273 G 252 FTY 0.5 mg ANI 232 N 947 1112 RIFADIN 150 GG 341 4009 BL 50 M 530 CLR 50 5011 V L 349 L 22 Z8 HLA 80 RX 791