What is the primary purpose of transdermal medication?

The primary purpose of transdermal medication is to deliver medication through the skin via a patch or similar form. This method allows for the continuous release of the medication into the bloodstream over an extended period, providing a steady rate of drug absorption and maintaining therapeutic levels without the peaks and troughs commonly associated with other routes of administration. Transdermal patches are designed for ease of use and can enhance patient compliance since they do not require frequent dosing.

Other methods of administration, such as injections or oral pills, do not fit the definition of transdermal delivery. Injections provide a different delivery mechanism, focusing on direct access to the systemic circulation, while oral medications work through the gastrointestinal system. Inhalation delivers medication through the respiratory system, which is also distinct from transdermal administration. The unique aspect of transdermal patches is their ability to provide a non-invasive, consistent delivery method that circumvents the digestive tract and avoids first-pass metabolism, making them particularly useful for certain medications that require precise dosing over time.