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: Pharmacology
[{'content': 'Intolerance to a drug occurs at what dose in an individual ? \nSelect and explain. \nA. Subtherapeutic dose, B. Therapeutic dose, C. Toxic dose, D. Not related to the dose of drug', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is'b'i.e., Therapeutic dose IntoleranceIt is the appearance of characteristic toxic effects of drug in an individual at therapeutic doses.Converse of tolerance and indicates a low threshold of the individual to the action of a drug.", 'role': 'assistant'}]