Pill Identification by Imprints: R189 Home Pill Identification by Imprints: R189 1 result MINOCYCLINE HCL 50 MG TABLET Side 1: R189 Color: Yellow Side 2: Shape: Oval Other Popular Drug Imprint L476 TA2M 851 ZOVIRAX 499 658 M PD3 XR 400 RX 830 1000 23 PLIVA 456 L 239 P211 W961 nitroglycerin 0.2 mg/hr 10 mg L144 E73 TZ 2 GG851 L 51 Tandem Plus logo 20 A402 logo and 4366 I54 FS 44-411 PLETAL 50 logo and 658 ibr MYLAN 2302 Nitro-Dur 0.1 mg/hr 033 logo and 20 APO 021 TV 1 DM1 GX EH3