BVDV-IN-1 is a non-nucleoside inhibitor (NNI) of bovine viral diarrhea virus (BVDV), with an EC50 of 1.8 μM. BVDV-IN-1 directly binds to a hydrophobic pocket of the BVDV RdRp. BVDV-IN-1 has antiviral activity against BVDV resistant to NNI thiosemicarbazone (TSC) [1].