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: Psychiatry
True about psychoactive drugs is? 
Select and explain. 
A. Can cause sexual dysfunction, B. Used in OCD, C. Used in psychotic disorders and Used in drug withdrawal, D. All of these
D: All of these
Answer: D: All of these 
Explanation: Ans: D. All of theseAll the above mentioned options are true about Psychotropic drugsA psychoactive drug or psychotropic substance is a chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, mood, consciousness and behaviour.In addition , several psychoactive substances are currently employed to treat various addictions. These include acamprosate or naltrexone in the treatment of alcoholism, or methadone or buprenorphine maintenance therapy in the case of opioid addiction.