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
Which of the following is true regarding olazapine except- 
Select and explain. 
A. It causes marked anti-muscarinic action, B. It causes weight gain, C. It causes mild increase in prolactin, D. Less epileptogenic action than phenothiazine
D: Less epileptogenic action than phenothiazine
Answer: D: Less epileptogenic action than phenothiazine 
Explanation: Ans. is 'd' i.e., Less epileptogenic action than phenothiazine o Clozapine and olanzapine are most epileptogenic antipsychotics. o Olanzapine blocks multiple monoaminergic (D2, 5-HT2, al, a2) as well as muscarinic and H1receptors. o It causes weight gain o It causes little rise in prolactin level.