Salbutamolsulphate is a drug for asmaticbronchitis which can be formulated into transdermalpreparate because it is a patent drug with a short half time of 4 to 6 so that is should be given 3 to 4 times a day and also involves in first metabolic path in oral administration. The transdermal system is a matrix system combination of povidonetylcalluloce at 3:2 proportion. Ethanol is used to increas…