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
[{'content': 'Drug that can cause hyperophic pyloric stenosis is? \nSelect and explain. \nA. Teacyclin, B. Erythromycin, C. Ampicillin, D. Rifampicin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: o Maternal and infant use of erythromycin and other macrolide antibiotics have been repoed as risk factors for infantile hyperophic pyloric stenosis (IHPS). REF : katzung pharmacology : 14th ed', 'role': 'assistant'}]