Transdermal application allows to administer the drug through the skin with the systemic effect, without the need for the preparation to be swallowed (oral administration) or for the patient to undergo the invasive application of injection (e.g., intravenous administration). Transdermal delivery offers a wide range of benefits; however, their effect may be significantly affected by the improper technique of the application that differs for each preparation.
This paper introduces the basic overview of liquid, semi-solid and solid transdermal delivery systems available in Czech Republic with the specific focus on their correct application.