Effects of Basic Amino Acids and Their Derivatives on SARS-CoV-2 and Influenza-A Virus Infection The effects of arginine and lysine on infection of SARS-CoV-2 and influenza A virus: "lysine and its ester derivative can efficiently block infection of both viruses in vitro. Furthermore, the arginine ester derivative caused a significant boost in virus infection."

20-week study of multi-component over-the-counter “core formulation” regimen used in a multiply exposed, high risk population: "The OTC core supplementation formulations used include zinc and zinc ionophores; vitamins C, D3 and E; and l-lysine."

Existing drugs kill SARS-CoV-2 in cells Could the next therapy for COVID-19 already be at your local pharmacy?

Effect of 1% Povidone Iodine Mouthwash/Gargle, Nasal and Eye Drop in COVID-19 patient Be sure to clear this with your healthcare provider, especially if you are a thyroid patient.