This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Which of the following drug can be given intravenously, epidurally or by transdermal route – 
Select and explain. 
A. Fentanyl, B. Thiopental, C. Succinylcholine, D. Vecuronium
A: Fentanyl
Answer: A: Fentanyl 
Explanation: Fentanyl can be given by IM, IV, transmucosal, transdermal (fentanyl patch), intrathecal and epidural routes.