Qnexa, the blockbuster weight loss medication, did not get FDA approval today. Qnexa is a combination of phentermine (adipex) and topiramate (topamax). Phentermine has been widely used to treat obesity and does work, but it also has a number of unpleasant side effects. Topamax is an anticonvulsant used to treat seizures and a variety of mood disorders. People who used topamax for seizures and migraines have reported weight loss. Based on this information, the drug company, Vivus decided to combine the two products to make Qnexa. The first few studies conducted by vivus indicated that the formula works well for weight loss, but FDA had other concerns.
There is great concern that Qnexa may case dangerous side effects include changes in heart rhythm, memory loss, birth defects and suicidal thoughts. Other side effects include nausea, headaches, dry mouth, insomnia, tingling, altered taste, constipation, diarrhea, fatigue and symptoms of a upper respiratory tract infection.
With the increasing rates of obesity globally, there is a need for weight loss medications. Even though many effective weight loss medications have been discovered, the majority have been found to have severe side effects and dangerous complications.
Qnexa is the 2nd drug to be rejected in a week; last week, the FDA rejected lorcaserin made by Arena pharmaceuticals.
The FDA has asked Vivus to supply more data on its toxicity before it makes any more decisions on the future of Qnexa.
Drug companies are notorious when it comes to hiding negative information. With millions of obese people all around the globe, there are billions of dollars to be made-so in their opinion who cares if a few die on the way if obesity is cured!
Qnexa acts as an appetite suppressant and allows one to lose weight rapidly. Anecdotal reports indicate that Qnexa can help one lose at least 10% of body weight in 12 months.
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