This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Pharmacology), Subject name: Pharmacology
Which of the following drugs is associated with priapism? 
Select and explain. 
A. Hydralazine, B. Prazocin, C. Resperidone, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. is 'd' i.e., All the above Some drugs that may couse priapism* Anticoagulants* Phenothiazines* Haloperidol* Phentolamine* hydralazine* Prazosin* Nifedipine* Risperidone* Olanzapine* Trazodone* Papaverine