Other
Methylene Blue
Methylene blue is a synthetic blue dye first made in the 19th century. It is used as a medicine for certain blood disorders and as a stain in laboratories.
Approved treatment has a specific purpose
In the EU, Proveblue is a prescription injection given by a healthcare professional for methemoglobinemia caused by certain medicines or chemicals. That authorization does not establish an oral dose for cognitive enhancement. 1