This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adverse Drug Effect, Subject name: Pharmacology
[{'content': 'Phocomelia is caused by which drug: \nSelect and explain. \nA. Methotrexate, B. Thalidomide, C. Phenytoin, D. Carbimazole', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. ThalidomidePhocomelia is teratogenic effect which was caused by thalidomide given to pregnant females for morning sickness, in this there was seal like limbs. This drug was banned due to this effect. Current status of the drug is that it is used in Lepra reaction and multiple myeloma.', 'role': 'assistant'}]