“Efficacy of two siddha polyherbal decoctions, Nilavembu Kudineer and Kaba Sura Kudineer, along with standard allopathy treatment in the management of mild to moderate symptomatic COVID-19 patients-a double-blind, placebo-controlled, clinical trial” was the recent publication in the Siddha COVID clinical research series. The study was conducted at Delhi. The study concluded that the addition of Nila vembu kudineer or kabasura kudineer along with allopathic standard drugs, can reduce the viral load, IL-6 and clinical symptoms significantly, that enable the reduction in hospitalization period. We congratulate the research team.  

Further reading:  https://pubmed.ncbi.nlm.nih.gov/34454572/