See Above Link for Herbal Formulas Used In China for COVID-19

First Defense

Gui Zhi Tang, also known as "Cinnamon combination," in tincture form. A warming tonic often used during cold and flu season.

read research about antiviral activity of Chinese herbs:

See above link for information about Herbs with antiviral potential

AV Plus

A combination of herbs based on the classical formula "Yin Qiao San" in tincture form, with additional herbs for their potential activity against viruses.