Transdermal patches: updated review as a novel drug delivery system

Abstract

Transdermal patches are a non-invasive method of drug administration. It is an adhesive patch designed to deliver a specific dose of medication through the skin and into the bloodstream throughout the body. Transdermal drug delivery has several advantages over other routes of administration, for instance, it is less invasive, patient-friendly, and has the ability to bypass first-pass metabolism and the destructive acidic environment of the stomach that occurs upon the oral ingestion of drugs. Further offering a prolonged period of regulated medication release. The preparation procedures for various transdermal patch types, including membrane matrix, drug-in-adhesive, and micro reservoir patches, are covered in this review article. The various transdermal dosage form evaluation techniques have also been studied.