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+] ...

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 ...

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) ...

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 ...

Beth Matthews consumed a poisonous substance that led to her death (Image via BethMatthewsz/Twitter) Nine months after the death of mental health blogger Beth Matthews, it was disclosed in an inquest ...

The FDA announced that it will allow manufacturers of over-the-counter (OTC) oral health care products containing benzocaine to include a product label warning regarding the risks of methemoglobinemia ...

Investigation of the electrophoretic characteristics of NADH methemoglobin reductase in five unrelated families with a deficiency of this enzyme showed three different types of enzyme patterns: total ...

The history of the Fugates, a family affected by a strange genetic disorder, has resurfaced online this week, leaving many wondering if blue skin is scientifically possible.The Fugates were a family ...

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, ...

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.