The Cleveland Clinic lists common side effects of methylene blue, including blue urine, nausea, vomiting, skin discoloration, dizziness, and headaches. Some studies also suggest that taking it in ...

Now, the interesting thing about methylene blue is that, if ingested, it can temporarily change a person's urine colour. The effects range from a faint green tint to a bright blue stream. "For the ...

A recent viral video of Robert F. Kennedy Jr. using a bright blue liquid sparked widespread curiosity about methylene blue—a substance that has been making waves on social media as a supposed ...