IL6 and COVID-19: The few drugs which have received full approval from FDA to treat COVID-19 patients include the antiviral drug (remdesivir (VekluryTM)), 3CLpro protease inhibitor (Nirmatrelvir/ritonavir (Paxlovid)) [32], IL-6 inhibitors (sarilumab, tocilizumab, and siltuximab), and the corticosteroid dexamethasone.