DRUG DOSAGE FORMS & DELIVERY SYSTEMS


Transdermal Patches

A medicated adhesive patch that is placed on the skin to deliver a specific dose of medication through the skin and into the bloodstream.

Components of Transdermal Patch
  1. Liner – Protect the patch during storage. The liner is removed prior to use.
  2. Drug – Drug solution in direct contact with release liner.
  3. Adhesive – Serves to adhere the components of the patch together along with adhering the patch to the skin.
  4. Membrane – Controls the release of the drug from the reservoir and multi-layer patches.
  5. Backing – Protects the patch from the outer environment.