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 ZOMIG 5 P0 02 44 235 ZC 25 USL B 1 MYLAN 1259 V233 953 par 258 923 CL47 T 543 2230 PO S1 L3 1507 AN 545 A-10 mg APP 333 logo and 22 1069 572 Tri PRO POLY 212 RX 830 TL 382 T582 A402 ZC40 MUTUAL 401 192 54 085 54 157 logo and 510 973 GG 167 AN 513 A 50 SG