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: Pharmacology
Sympathomimetic drugs are used in all of the conditions, except: 
Select and explain. 
A. High blood pressure, B. Acute uncompensated cardiac failure, C. Low blood pressure, D. Erectile dysfunction
D: Erectile dysfunction
Answer: D: Erectile dysfunction 
Explanation: Erection is mediated parasympathetic stimuli, while ejaculation is under control of sympathomimetic agents. Thus sympathomimetic agents will not help in erectile dysfunction. Ref: Richard Finkel, Michelle Alexia Clark, Pamela C. Champe, Luigi X. Cubeddu (2009), Pharmacology, 4th Edition, Lippincott Williams and Wilkins Publications, United States Page 65 ; Principles of Anatomy and Physiology By Taora 10th Edition, Page 580