Which of the following mixture of anesthetics is applied on skin?: (A) Lidocaine and prilocaine, (B) Bupivacaine and prilocaine, (C) Lidocaine and bupivacaine, (D) Lidocaine and procaine
Answer is A. Ans is 'a' i.e. Lidocaine and prilocaine Eutectic mixture of local Anaesthetics (EMLA)* This is unique topical preparation which can anaesthetize intact skin.* It is a mixture of 2.5% lidocaine and 2.5% prilocaine.* It acts slowly and the cream must held in contact with skin for at least 1 hour.* EMLA is used : to make venepuncture painless especially in children, and for procedure like skin grafting & circumcision.* As systemic absorption of prilocaine can cause methemoglobinemia, EMLA should not be used on mucocutaneous membrane or in very small child.