What is "transdermal" medication delivery?

Transdermal medication delivery refers to the method in which medication is absorbed through the skin. This type of delivery system allows for the continuous release of medication over an extended period, providing consistent therapeutic effects without the need for frequent dosing. Transdermal patches, for example, are a common form of this delivery method, where the medication is embedded in a patch that adheres to the skin. This approach is advantageous for maintaining stable blood levels of the medication and can enhance patient compliance due to its simplicity and ease of use.

Other methods of medication delivery, such as nasal sprays, oral ingestion, or intravenous (IV) administration, do not involve absorption through the skin and therefore do not fall under the classification of transdermal delivery. Each of these alternatives targets different routes of administration and may be used based on the specific needs of the patient or the medication being prescribed.