References:
Quercetin use  https://www.integrativepro.com/Resources/Integrative-Blog/2016/Quercetin-Overview-Dosage-Guidelines

Anti-Influenza Nutraceuticals: Antiviral and Anti-Inflammatory Effects Advances in Complementary & Alternative medicine Humpherys 2019

3cl Protease: Specific plant terpenoids and lignoids possess potent antiviral activities against severe acute respiratory syndrome coronavirus. Wen CC et al, J Med Chem. 2007 https://www.ncbi.nlm.nih.gov/pubmed/17663539

Vitamins & Minerals
Othomolecular newsletter: http://orthomolecular.org/resources/omns/index.shtml

Computer modeling of compounds against COVID-19
Structural Basis of SARS-CoV-2 3CLpro and Anti-COVID-19 Drug Discovery from Medicinal Plants. Qamar et al. Feb 2020.

Pentacyclic Triterpene Distribution in Various plans - Rich Sources for a New Group of Multi-Potent Plant Extracts.
Jager et al. 2016

CoV-19 | Inhibitors of mast cell De-granulation

Compound	Source	Dose
Quercetin	Pills or Onion skin	500 - 1000 mg / day
Luteolin	Rosemary & Leek
Leanolic acid Ursolic acid Caffeic acid Rosmarinic acid	Rosemary
Astragalus
Allicin	Garlic (for airway inflammation)

CoVID-19 | Controlling the inflammation & Cytokine Storm

Compounds	Found in which plants
Forskolin	Coleus forskohlii
Alpha Candinol	Calendula Flowers
Methyl Rosemarinate	Rosemary
Betulinic acid	Birch Bark & Rosemary
Honokiol	Birch Bark & other sources
Magnolol	Magnolia
Glycyrrhizin	Liquorice root