<prompt> Percentage of lidocaine in Eutectic mixture -12.50510  <response>: Ans. is b i.e., 2.5 Eutectic mixture of local Anaesthetics o This is unique topical preparation which can anesthetize intact skin. o It is a mixture of 2.5 lidocaine and 2.5 prilocaine. o It acts slowly and the cream must be held in contact with the skin for at least 1 hour. o EMLA is used: to make venepuncture painless especially in children, and for procedures like skin grafting circumcision. o As systemic absorption of prilocaine can cause methemoglobinemia, EMLA should not be used on mucocutaneous membrane or in a very small child. 