Transdermal Patch
คำจำกัดความ
A medicated adhesive patch placed on the skin that delivers a controlled dose of drug through the skin into the bloodstream over an extended period. Transdermal delivery provides steady drug levels and avoids first-pass metabolism.
ตัวอย่าง
The fentanyl transdermal patch delivers pain medication continuously over 72 hours, providing sustained pain relief for chronic conditions.