The blue pigments of methylene blue combine with yellow urine to create a green color. Bilirubin is a yellowy substance found ...

The dark green powder, which turns blue in ... leading some to complain that it was turning their urine blue. However, experts said methylene blue quickly fell out of favour in the second half ...

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 ...

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 ...