This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Asthma, Subject name: Pharmacology
[{'content': 'Most unpleasant side effect of salbutamol is \nSelect and explain. \nA. Tremors, B. Hypertension, C. Rhinorrhoea, D. Headache', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a (Tremors.) (Ref: KD Tripathi, Pharmacology, 4th ed., 125, 237)Salbutamol is highly selective beta, agonist used to treat attacks of asthma.Its side effects are:# Tremors (unpleasant, dose-related).- Palpitations# Restlessness- Ankle edema# Nervousness- Throat irritation', 'role': 'assistant'}]