This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurotic, Stress Related and Somatoform Disorders, Subject name: Psychiatry
Which of the following is NOT an anxiolytic drug? 
Select and explain. 
A. Melatonin, B. Haloperidol, C. Alprazolam, D. Seraline
A: Melatonin
Answer: A: Melatonin 
Explanation: SSRIs and benzodiazepines are the main stay of treatment. Antipsychotics like haloperidol can be used as adjunct. Melatonin has no clearly defined indication in anxiety disorder.