This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
The drug approved for obesity treatment along with Phentermine is 
Select and explain. 
A. Topiramate, B. Sibutramine, C. Fenfluramine, D. Lorcaserin
A: Topiramate
Answer: A: Topiramate 
Explanation: Topiramate causes weight loss. Recently it was approved for obesity treatment along with Phentermine.This drug is an extended release or controlled release preparation.Phenteramine is an non adrenergic sympathomimetic and topiramate anti seizure and antimigrate drug available in FDC known as Qsymia.Ref: H.L.Sharma; 3rd ed.; pg 925