The aim of Novel Drug Delivery System is to provide a therapeutic amount of drug to the appropriate the in the body to accomplish promptly and then maintain the desired drug concentration. The drug delivery system should deliver drug at a rate control by the necessarily of the body over a specified term of treatment. A transdermal patch is a medicated adhesive patch that is placed on the skin to deliver a specific dose of medication through the skin and into the bloodstream. Often, this promotes healing to an injured area of the body. An advantage of a transdermal drug delivery route over other types of medication delivery such as oral, topical, intravenous, intramuscular, etc, is that the patch provides a controlled release of the medication into the patient, usually through either a porous membrane covering a reservoir of medication or through body heat melting thin layers of medication embedded in the adhesive. The therapeutic efficacy of Aaghada must have been known to man since antiquity as a result of constant experimentation with nature. It have various activites like, Analgesic, antioxidant, antifertility, Anti-inflammatory, Anti pyretic, Antiemetic, cardiac stimulant, Antioxidant, Anti- microbial etc. But this bitterness is responsible for its therapeutic efficacy of this tree. A wide variety of pharmaceuticals are now available in transdermal patch form.
Vaishali et al. (Fri,) studied this question.