This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Depression is not a side effect of 
Select and explain. 
A. Propanolol, B. Oral contraceptives, C. Reserpine, D. Flupenthixol
D: Flupenthixol
Answer: D: Flupenthixol 
Explanation: Answer is option4, flupenthisol. The antidepressive and anxiolytic efficacy of flupenthixol has been investigated in numerous controlled and open trials involving patients with endogenous, reactive as well as senile depressions. When administered at a mean daily single or multiple dose of 1-2 mg, flupenthixol proved to be a very effective and well-tolerated antidepressant. As opposed to some of the currently available antidepressants, flupenthixol has a rapid onset of action which is often displayed within the first 2-3 days following its application. Ref: