Activity of phytochemical constituents of Curcuma longa (turmeric) and Andrographis paniculata against coronavirus (COVID-19): an in silico approach.

Based on in silico investigations, the chemical constituents from turmeric like cyclocurcumin and curcumin and from Andrographis paniculata like andrographolide and dihydroxy dimethoxy flavone, significantly binding with the active site of SARS CoV-2 main protease, may produce significant activity and be useful for further development.