Preparation and Evaluation of Transdermal Plasters . Jun 21 2010· Preparation of transdermal plasters Transdermal plasters containing NF were prepared by casting method on mercury surface 12 using PVP PVA as polymers according to the composition given in Table Table1 1Polymer solution was prepared by heating a mixture of PVP and PVA (1 08) in water (about 40 mL) for 30 minutes until a clear ...
