This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
Bradycardia is common after injection of 
Select and explain. 
A. Midazolam, B. Succinylcholine, C. Dopamine, D. Isoprenaline
B: Succinylcholine
Answer: B: Succinylcholine 
Explanation: Succinylchole is the only muscle relaxant, which stimulates vague nerve - BRADYCARDIA.(attenuates tachycardia and hypeension) This effect is more predominant in the pediatric age group. Therefore, I. V. Atropine is given prior to the first dose of scholine in the children and prior to the second dose in the adults. Ref.morgan 5th/e