Best weight loss medications for fast weight loss Qsymia and Belviq

Weight loss doctorDid you know there are new weight loss medications approved by the U.S. Food and Drug Administration such as the combination of Phentermine and Topiramate, marketed as Qsymia or Lorcaserin marketed as Belviq in addition to a reduced-calorie diet and exercise for chronic weight management.

These new weight loss drugs are approved to be used in adults with a body mass index (BMI) of thirty or larger (obese) or adults with a BMI of twenty seven or larger (overweight) that have one or more of weight-related conditions of which there are many including blood pressure problems, cholesterol issues, diabetes, prediabetes etc.

Although there is no generic for Qsymia, the generic combination of Phentermine and Topiramate in somewhat similar dosage can give similar weight loss results for a huge cost saving.


The drug Belviq was approved for use in adults who are obese or those that are overweight with certain weight related comorbidities.

How does belviq work for weight loss?

Belviq works by activating the serotonin 2C receptor in the brain which helps a person eat less and feel full after eating smaller amounts of food.

Side effect of Belviq

Common side effects of Belviq include headache, dizziness, fatigue, nausea, dry mouth, and constipation, headache, back pain, cough, and in diabetic patients are low blood sugar (hypoglycemia) and fatigue.

Safety of Belviq

There were three randomized, placebo-controlled trials that included nearly 8,000 obese and overweight patients, with and without type 2 diabetes, treated for 52 to 104 weeks.


The approved labeling for Belviq recommends that the drug be discontinued in patients who fail to lose 5 percent of their body weight after 12 weeks of treatment, as these patients are unlikely to achieve clinically meaningful weight loss with continued treatment.

Belviq is contra-indicated in pregnant woman and should not be used during pregnancy.

Manufacturer of Belviq

Belviq is manufactured by Arena Pharmaceuticals GmbH of Zofingen, Switzerland, and distributed by Eisai Inc. of Woodcliff Lake, N.J.


Qsymia weight loss medication

The FDA also approved another weight loss medication, Qsymia which is a combination of low dose of Phentermine and Topiramate at around the same time in July 2012.

How do these weight loss medications Belviq and Qsymia compare?

Compared to Belviq, the combination weight loss medication, Phentermine and Topiramate is twice as effective in the studies although Belviq might be a bit safer in those that have a history of cardiovascular disease etc. according to Dr. Prab R. Tumpati, MD, a practicing weight loss physician, and founder of W8MD Medical Weight Loss Centers of America.

Learn more on Qsymia on the weight loss medication blog

For more information on Belviq, Qsymia and other weight loss medications:

Approved Drugs: Questions and Answers

CDC: Overweight and Obesity

Cost of weight loss medications

Costing about $150.00 to $200.00 per month, the brand name Qsymia might be a bit expensive. The generic combination of Phentermine and Topiramate in somewhat similar dosages are available at most W8MD Medical Weight Loss Centers of America for a significant cost saving. 

Cost of Belviq

The cost of Belviq is approximately $220.00 and there is no generic available.

Locations for weight loss medications

Philadelphia Insurance Weight Loss Center: 1718, Welsh Rd, Philadelphia, PA, 19115 Ph: 1-215-676-2334 & 1-800-W8MD-007

Philadelphia weight loss doctor

King Of Prussia Weight Loss Center: 987 Old Eagle School Rd, Ste 712, Wayne, PA, 19087 Ph: 215-676-2334 and 1-800-986-3007 

Philadelphia weight loss doctor

NYC Insurance Weight Loss Center: 2003, Bath Avenue, Brooklyn, NY, 11214 Ph: 1-718-946-5500 & 718-946-5501 

weight loss doctor new york city



About Prab R. Tumpati, MD, Medical Director

Dr. Prab R. Tumpati, MD is a practicing Obesity, sleep, aesthetic and internal medicine physician with offices in New York and Pennsylvania. As the founder and medical director of W8MD, Dr. Tumpati is very experienced and well versed in the science and the art of medicine having helped thousands of patients lose weight, sleep and look better!

Posted on September 7, 2014, in Weight Loss Articles, Weight Loss Medications and tagged . Bookmark the permalink. Leave a comment.

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