Tea Polyphenols EGCG and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro

Figure 5

EGCG and theaflavin have an additive effect. Indicated concentration of EGCG and theaflavin were incubated with 3CL-protease, and the coefficient of drug interaction (CDI) was calculated.