Melatonin has well known anti-inflammatory and anti-oxidative effects; it has also been shown to be protective against the acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) caused by viral and other pathogens. There is significant data showing that melatonin limits virus-related diseases and would also likely be beneficial in COVID-19 patients.
This comes to us from our friends at Natural Solutions for a Healthy You: Melatonin as a Potential Therapy for COVID-19.