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 MO1 16 U41 853 1249 L272 F51 NTBC 10 mg 44 189 66 or 67 I 51 835 B 312 AP040 logo and 661 D 1200 G73 907 IP 190 810 341 GG851 C 269 Dia B Tofranil-PM 125 mg 110 K6 3 5 924 AN 10 BP 648 LITHOBID 300 GG 580 ML 44 R12 RP125 ZA06 CL90 logo and D2 1000M M 543