This paper is interesting but I want to point out there is a difference between a research paper showing that something is hypothetically feasible and something that is actually useful clinically.
Clinically, methylene blue is used to treat a different condition, methemeglobinemia and is not used to treat carbon monoxide poisoning which relies on hyperbaric oxygen therapy.
Clinically, methylene blue is used to treat a different condition, methemeglobinemia and is not used to treat carbon monoxide poisoning which relies on hyperbaric oxygen therapy.