This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
Route of administration of amyl nitrite in cyanide poisoning is 
Select and explain. 
A. Sublingual, B. Inhalational, C. Intravenous, D. Intramuscular
B: Inhalational
Answer: B: Inhalational 
Explanation: Amyl nitrite is usually given in cyanide poisoning by inhalational route.