European Journal of Biomedical and Pharmaceutical Sciences

TRANSDERMAL PATCHES: AN UPDATED REVIEW AS A NOVEL DRUG DELIVERY SYSTEM

Vatsal Vagadiya*, Prof. Uravashi Nayak, Dr. Chainesh Shah and Dr. Umesh Upadhyay

ABSTRACT

Transdermal patches represent a sophisticated approach to medication delivery, leveraging the skin as a medium for administering drugs directly into the bloodstream. These patches are typically small adhesive strips designed to adhere firmly to the skin, where they provide a controlled and sustained release of medication. The primary advantage of transdermal patches is their ability to deliver a consistent dose of medication over an extended period, which can improve therapeutic outcomes and patient adherence to treatment regimens. By bypassing the digestive system and liver metabolism, transdermal patches minimize potential gastrointestinal side effects and avoid the first-pass effect, where the drug's efficacy is reduced as it is metabolized in the liver before reaching systemic circulation. This method ensures that medication levels remain steady, which is crucial for managing conditions that require precise and continuous dosing. Transdermal patches are versatile and used for a range of therapeutic purposes. For instance, in pain management, patches like those containing fentanyl provide long-lasting relief without the need for oral opioids. Hormone replacement therapies often use patches to deliver hormones like estrogen or testosterone, facilitating easier absorption and stable hormone levels. Additionally, patches designed for smoking cessation, such as those containing nicotine, help to gradually reduce dependence on cigarettes by delivering a controlled amount of nicotine over time, thereby supporting the process of quitting smoking. Overall, transdermal patches offer a user-friendly alternative to oral and injectable medications, with the benefits of ease of use, reduced side effects, and improved patient compliance.

Keywords: Transdermal Patches, mechanism of action, components, characterization.