“A pair of over-the-counter compounds have been found in preliminary tests to inhibit the virus that causes COVID-19, University of Florida Health researchers have found.  The combination includes diphenhydramine, an antihistamine used for allergy symptoms.  When paired with lactoferrin, a protein found in cow and human milk, the compounds were found to hinder the SARS-CoV-2 virus during tests in monkey cells and human lung cells.”

“A new groundbreaking study from the University of Michigan reveals several drug contenders already in use for other purposes—including one dietary supplement—that have been shown to block or reduce SARS-CoV-2 infection in cells.  The team validated the 17 candidate compounds in several types of cells, including stem-cell-derived human lung cells in an effort to mimic SARS-CoV2 infection of the respiratory tract.  Nine showed anti-viral activity at reasonable doses, including lactoferrin, a protein found in human breastmilk that is also available over the counter as a dietary supplement derived from cow’s milk.”

The link to the study is in the first comment.