Pill Identification by Imprints: 2131 Home Pill Identification by Imprints: 2131 3 results NITROFURANTOIN MCR 100 MG CAP Side 1: logo and Zenith 100 mg Color: Pink Side 2: 2131 Shape: Oblong NITROFURANTOIN MCR 100 MG CAP Side 1: logo and Zenith 100 mg Color: Pink Side 2: 2131 Shape: Oblong NITROFURANTOIN MCR 100 MG CAP Side 1: logo and Zenith 100 mg Color: Pink Side 2: 2131 Shape: Oblong Other Popular Drug Imprint 4211 V 557 PROVERA 10 S251 S GG854 GG854 FENTANYL 75mcg/hr 839 MYLAN 6899 N10 MYLAN 2047 461 EXELON 4.5 mg 355 RI18 W 784 L237 54 199 L158 GLYNASE 3 M 243 CDT 252 logo and 100 SUPPORT 500 54 628 PreQue 518 CAPACET OV MP 27 CP PATR R 158 or 54 312 or GG849 CYP 179 W 1035 54 763 J78 446 F 25 L837