This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Property, Subject name: Pharmacology
Drug which is absolutely contraindicated in pregnancy is: 
Select and explain. 
A. Ceftriaxone, B. Chloramphenicol, C. Methyldopa, D. Erythromycin
B: Chloramphenicol
Answer: B: Chloramphenicol 
Explanation: Ans. (b) ChloramphenicolRef KD Tripathi 6th Ed. 1716 & 909CHLORAMPHENICOL* It is a broad-spectrum antibiotic, active against nearly the same range of organisms (gram-positive and negative bacteria, rickettsiae, mycoplasma) as tetracyclines.Adverse Efects* Bone marrow depression* Hypersensitivity reactions* Grey baby syndromeChoice of drugs for common problems during pregnancyDrug class (condition)Unsafe drugsSafer alternativeAntibacteirals* Fluoroquinolones* Tetracycline* Doxycycline* Chloramphenicol* Streptomycin* Kananmycin* TobramycinPenicillin G;AmpicillinAmoxicillin-ClavulanateCloxacillin,Piperacillin cephalosphorins erythromycinAntitubercular* Pyrazinamide, Ethambutol* StreptomycinIsoniazidRifampicinAnti hypertensives* ACE inhibitors* Angiotensin antagonists* Diuretics* Proanolol and nitroprussideMethyldopaHydralazineAtenolol,Metoprolol, pindololNifedipineAnti thyroid drugs* Carbimazole* Radioactive iodine* IodidePropylthiouracil (PTU)