Herbs with antiviral activity against Coronavirus

Virus	Natural product(s) evaluated	Proposed mechanism(s)
Coronavirus	Saikosaponin (A, B2, C, D) against HCoV-22E9 Lycoris radiata and its active component lycorine, Artemisia annua, Pyrrosia lingua, and Lindera aggregata against SARS-CoV Phenolic compounds of Isatis indigotica against SARS-CoV Amentoflavone isolated from Torreya nucifera against SARS-CoV Myricetin and scutellarein against SARS-CoV Houttuynia cordata water extract against SARS-CoV	Saikosaponin B2 inhibits viral attachment and penetration stages Unclear   SARS-CoV 3CL protease inhibitor   SARS-CoV 3CL protease inhibitor   SARS-CoV helicase inhibitor   SARS-CoV 3CL protease inhibitor; viral polymerase inhibitor

 

Reference

Lin LT, Hsu WC, Lin CC. Antiviral Natural Products and Herbal Medicines. J Tradit Complement Med. 2014 Jan-Mar; 4(1):24-35