This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Nitroglycerine can be administered by all of the following routes except 
Select and explain. 
A. Oral, B. Sublingual, C. Intramuscular, D. Intravenous
C: Intramuscular
Answer: C: Intramuscular 
Explanation: NTG is a nitrate acting by releasing NO and causing vasodilation of vessels. useful in treatment of angina. Can be given by oral, sublingual,IV not by i.m route. Ref: KD Tripathi 8th ed.