This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
Which of the following antihypeensive is used in premenopausal syndrome 
Select and explain. 
A. Clonidine, B. Hydralazine, C. Losaan, D. Amlodipine
A: Clonidine
Answer: A: Clonidine 
Explanation: Clonidine is a centrally acting antihypeensive drug Other uses: Treating cancer(severe) pain, menopausal syndrome, migraine, alcohol, opioid de-addiction REF.Essentials of Medical Pharmacology KD Tripathi 8th ed.