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 IMA 100 557 WPI 3155 ED PSE NV3 BCL 5 M L53 832 BM1 P-D 915 EN1 10 10 10 2.5/325 MYLAN Ris 0.25 346 E 221 MYLAN TM 140 SU RX 900 MPC 600 TEMODAR 340 CNG1 718 593 Andrex 700 SEA RLE 10 21 MOD 200 SCU B082 C 75 logo and 11 BMS 140 SZ441 L 8 A68 I33 Nitroglycerin 0.6mg/hr VP 022 CTI 224