April 7, 2011 (UPDATED April 12, 2011) — Topical benzocaine sprays, gels, and liquids used as anesthesia during medical procedures and for analgesia from tooth and gum pain may cause methemoglobinemia ...

Methemoglobinemia may be associated with benzocaine sprays, according to a U.S. Food and Drug Administration report. Benzocaine sprays are used to numb the mucous membranes of the mouth and throat in ...

FDA LOGO BLUE The Agency is urging manufacturers to stop marketing OTC oral drug products containing benzocaine for teething to this patient population. Over-the-counter (OTC) oral products containing ...

The FDA notified healthcare professionals and patients that it has continued to receive reports of methemoglobinemia associated with benzocaine products. In 2006, FDA issued a Public Health Advisory ...

Feb. 13, 2006 — The US Food and Drug Administration (FDA) has issued a health advisory to warn healthcare professionals of the risk for methemoglobinemia associated with use of benzocaine sprays in ...

Medically reviewed by Patricia Mikula, PharmD Key Takeaways Methylene blue is FDA-approved only for treating ...

The reduction in the oxygen-carrying capacity of hemoglobin (Hb) in methemoglobinemia patients is due to the conversion of some or all of the four iron species being reduced from the ferrous [Fe 2+] ...

Methemoglobinemia is a congenital or acquired blood disorder caused by an abnormal amount of methemoglobin which is a form of hemoglobin. Hemoglobin is the protein in red blood cells (RBCs) ...

Methemoglobinemia is a blood condition in which an abnormal amount of methemoglobin is produced. Hemoglobin is the protein in red blood cells that carries and distributes oxygen to the body.

THE several rare familial disorders constituting the "congenital methemoglobinemias" arise from either of two kinds of inborn errors of metabolism. One kind, accounting for the hemoglobin-M group, ...