This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
Venlafaxine comes under which class of drugs: 
Select and explain. 
A. Selective serotonin reuptake inhibitor, B. Serotonergic noradrenergic reuptake inhibitor, C. Tricyclic antidepressant, D. Serotonin receptor antagonist
B: Serotonergic noradrenergic reuptake inhibitor
Answer: B: Serotonergic noradrenergic reuptake inhibitor 
Explanation: (Ref: Goodman & Gillman's 13th ed. P 268)* Five medications with a nontricyclic structure that inhibit the reuptake of both 5HT and NE have been approved for use in the US for treatment of depression, anxiety disorders, pain, or other specific conditions. The drugs are:# Venlafaxine and its demethylated metabolite desvenlafaxine# Duloxetine# Milnacipran, and# LevomilnacipranMn: Vania Duals My Love