This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
The antihypertensive which causes decreased libido and impotence is: 
Select and explain. 
A. Atenolol, B. Enalapril, C. Prazosin, D. Diltiazem
A: Atenolol
Answer: A: Atenolol 
Explanation: Ans. (A) Atenolol(Ref: KDT 8th/e p161)Current hypertensive research May 2012; Antihypertensive treatment and sexual dysfunction.*Diuretics have maximum risk of causing sexual dysfunction followed by beta blockers.*Atenolol, metoprolol and carvedilol have high risk whereas nevibolol has minimum risk of erectile dysfunction.*ACE inhibitors decrease the risk.