IL6 and COVID-19: Most treatments tested so far are effective at slowing disease progression at early stages but have limited effects once patients progress to severe COVID-19.2 These treatments include monoclonal antibodies (eg, Molnupiravir from Regeneron), convalescent serum,3 remdesivir,4 anti-IL-6 tocilizumab,5 dexamethasone6, and paxlovid (Pfizer).