Methemoglobinemia
Cause
Methemoglobinemia may be acquired. Classical drug causes of methemoglobinaemia include various antibiotics (trimethoprim, sulfonamides, and dapsone), local anesthetics (especially articaine, benzocaine, prilocaine, and lidocaine), and aniline dyes, metoclopramide, rasburicase, chlorates, and bromates. Nitrates are suspected to cause methemoglobinemia.
Methemoglobinemia-6