TNF and COVID-19: Alkenyl sulfonylurea derivatives [7], an IMU-8381 inhibitor of human dihydroorotate dehydrogenase, pyrazole derivatives, and phillyrin, regulated the expression of inflammatory cytokines (e.g., IL, TNF-α, and NF-κB) induced by SARS-CoV-2 markedly and could be considered as adjuvant treatment of COVID-19 severe disease.