Methylene blue is a synthetic compound with a deep blue color that has been used for over a century in various medical, scientific, and industrial applications. Chemically, it is classified as a phenothiazine derivative. It is a salt and is used as a dye and as medication.

Robert F. Kennedy Jr. appears likely to soon be taking the helm as Secretary of the Department of Health and Human Services. The Senate Finance committee voted along party lines, 14-13, to favorably report his nomination to the full Senate. A vote to confirm him likely will happen in the coming days or perhaps next week.