About Authors:
Vinay Mishra, Shilpi Bhargava
Advance Institute of Biotech and Paramedical Sciences,
Kanpur
Introduction:
Delivering medicine to the general circulation through the skin is seen as a desirable alternative to taking it by mouth. Patientsoften forget to take their medicine, and even the most faithfullycompliant get tired of swallowing pills, especially if theymust take several each day. Additionally, bypassing the gastrointestinal(GI) tract would obviate the GI irritation that frequently occursand avoid partial first-pass inactivation by the liver. Further,steady absorption of drug over hours or days is usually preferableto the blood level spikes and troughs produced by oral dosageforms.1