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Methylthioninium chloride, commonly called methylene blue, is a salt used as a dye and as a medication. As a medication, it is mainly used to treat methemoglobinemia.It has previously been used for treating cyanide poisoning and urinary tract infections, but this use is no longer recommended.
Pennsylvania is also working through legislation to ban red dye 40, yellow dyes 5 and 6, and blue dyes 1 and 2. There's a chance that more synthetic food dyes will be banned on a federal level.
Allergic-like reactions and methemoglobinemia have been documented after the use of methylene blue dye in chromopertubation. [9] These reported symptoms vary from blue discoloration of body fluids to anaphylactic shock. [10] Methemoglobinemia is a blood disorder that can potentially result in various levels of cyanosis. [11]
Double dye test is useful for diagnosing vesicovaginal or ureterovaginal fistulae. For this test, the patient takes oral phenazopyridine (Pyridium) 200 mg three times a day, and indigo carmine or methylene blue is filled into the empty urinary bladder via a urethral catheter .
One senior executive from the healthcare sector told the Financial Times his influence on policy would be “awful on a lot of levels."
Methyl blue is a chemical compound with the molecular formula C 37 H 27 N 3 Na 2 O 9 S 3.It is used as a stain in histology, [1] and stains collagen blue in tissue sections. It can be used in some differential staining techniques such as Mallory's trichrome stain and Gömöri trichrome stain, and can be used to mediate electron transfer in microbial fuel cells.
The California School Food Safety Act, which is a follow-up to the California Food Safety Act and focuses on foods served in schools, will ban red dye No. 40, yellow dyes Nos. 5 and 6, blue dyes ...
New methylene blue (also NMB) [clarify] is an organic compound of the thiazine class of heterocycles. It is used as a stain and as an antimicrobial agent. It is classified as an azine dye, and the chromophore is a cation, the anion is often unspecified.