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 316 or 317 EXELON PATCH 4.6mg/24 hours AMCX MP 47 93 089 CBP 200 3QD b1011 212 3671 MP 8 C8 721 1 BR 174 100 L272 508 EXH 8 SV2 logo and 4404 RES200 2 mg AN 735 31 62 Y+ or M+ PC23 NP NAT 375 0.75 ST 150 2L or 10LA 3431 250 L7 VANDA 20 MG ED 200 M F6 10 or 20 M07 6.0 121 N 20