Local anaesthesia causing methemoglobinemia is an effect of which of the following agents?: (A) Prilocaine, (B) Etidocaine, (C) Ropivacaine, (D) Procaine
Answer is A. reduces the amount of hemoglobin that is available for oxygen transpo this side effect is potentially life threatening. Drugs causing Methemoglobinemia: Sulfonamides Primaquine Nitrobenzene Prilocaine Aminophenones Anilines Ref: Morgan Anaesthesia, 4th Edition, Page 269