Final answer:
Fentanyl is the analgesic drug commonly administered via a transdermal patch for chronic pain management, due to its potency and ability to provide consistent pain relief.
Step-by-step explanation:
The analgesic drug commonly administered via a transdermal patch is Fentanyl. Fentanyl is a potent opioid medication and is often prescribed for the management of chronic pain, such as in cancer patients or other long-term pain conditions. This medication is known for its quick onset and lasting effects, making it suitable for transdermal delivery, which provides consistent blood levels of the drug over time.
Opioids like morphine, codeine, oxycodone, and Fentanyl are all used to relieve pain ranging from moderate to severe. While morphine and codeine are derived from the opium poppy, Fentanyl is a synthetic opioid that mimics the analgesic effects of the natural compounds in the body's endogenous opioid neurotransmitter system. Fentanyl's high potency means it is effective at lower doses, making it a good candidate for delivery through a skin patch.