This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: recent papers  obst, Subject name: Gynaecology & Obstetrics
[{'content': 'All of the following antibiotics can be used to treat cystitis in pregnancy except ________ \nSelect and explain. \nA. Amoxycillin, B. 1st generation Cephalosporins, C. Ciprofloxacin, D. 3rd generation Cephalosporins', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ciprofloxacin, a Fluroquinolone antibiotic, is contraindicated in pregnancy as it causes cailage and bone defects in the fetus. Antibiotics safe in pregnancy include Penicillin group, Cephalosporins, Erythromycin, Metronidazole (except in 1st trimester) Antibiotics unsafe in pregnancy: Metronidazole (in first trimester), Chloramphenicol, Aminoglycoside, Tetracycline and Fluroquinolones. Ref: ncb.nlm.nih.gov', 'role': 'assistant'}]