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: Gynaecology & Obstetrics
All of the following drugs have been used for medical aboion except : 
Select and explain. 
A. Mifepristone, B. Misoprostol, C. Methotrexate, D. Atosiban
D: Atosiban
Answer: D: Atosiban 
Explanation: Ans. is d i.e. Atosiban Drugs used for Medical aboion : Prostaglandins : - Misoprostol - Gemeprost Mifepristone Methotrexate Tamoxifen