What are the common routes for administering Fentanyl (Sublimaze)?

Fentanyl, under the brand name Sublimaze, is a potent opioid analgesic that can be administered through multiple routes due to its versatility and rapid onset of action. The correct answer highlights the various common routes for administering Fentanyl, which include intravenous (IV), transdermal patches, buccal formulations, and nasal sprays.

The IV route allows for immediate pain relief, making it suitable for acute settings such as surgeries or emergency situations. Transdermal patches provide a continuous release of Fentanyl over time for chronic pain management, offering a long-lasting effect without the need for frequent dosing. Buccal formulations are designed for quick absorption through the mucous membranes in the mouth, providing rapid pain relief without the need for injections. Nasal sprays also allow for rapid absorption, making them useful in situations where intravenous access is not feasible.

Other routes like rectal or subcutaneous are less common for Fentanyl administration, which is why they do not appear in the correct answer. The oral and sublingual routes are more suitable for other medications rather than for Fentanyl, given its potency and the typical dosing considerations associated with opioids. Thus, understanding the routes of administration for Fentanyl is essential for effective pain management.