FDA Approves Diet Pill Belviq
Belviq Is First New Prescription Weight Loss Drug in 13 Years
WebMD News Archive
One Dieter's Story continued...
"When I was on the drug I was able to stick to a 1,500- or 1,600-calorie-a-day diet without feeling hungry," she told WebMD. "And when I ate more than I planned to, I felt uncomfortably full, which is not something that I was used to."
Sutter was switched to the placebo arm of the study in her second year of enrollment and the weight started to creep back on.
She now weighs 30 pounds more than she did before enrolling in the trial and she says she plans to go back on the drug as soon as she can.
"I'm not saying this drug is the answer for everyone, but it worked well for me," she says.
Belviq Appears Safe, but Concerns Remain
But an FDA panel that met to consider the drug in 2010 had other concerns about the drug's safety, citing tumors that developed in lab animals.
At the FDA hearing in May, some panel members continued to express concerns that the drug may cause breast tumors or heart valve problems.
The panel voted 18 to 4 to recommend the drug's approval, citing the need for new obesity treatments.
"Obesity is one of the biggest health problems we face in this nation and, unfortunately the diet and lifestyle message is not working for many people," says diabetes specialist Abraham Thomas, MD, who chaired the May FDA advisory committee meeting.
Thomas, who is an endocrinologist at Henry Ford Hospital in Detroit, said during the May meeting that questions about heart valve safety in Belviq users had not been fully resolved.
But in an interview with WebMD, he called echocardiogram findings in Belviq users reassuring. These tests showed no evidence of an increase in heart valve issues.
"Ideally, we will have other drug options in the future for obesity instead of just a few so that if one drug doesn't work we can try another or a combination," he says.
Arena spokesman David Schull tells WebMD that Belviq is unique among the weight loss drugs the FDA is considering because it is a new drug discovered and developed by the company.
Qnexa, another weight loss drug awaiting FDA approval, is a combination of two already prescribed medications, the antiseizure drug topiramate and the appetite suppressant phentermine, the "phen" half of fen-phen.
Early this year, an FDA advisory committee overwhelmingly recommended Qnexa's approval as an obesity drug, and a final vote is scheduled for mid-July.
Along with the restriction on use during pregnancy, there are other side effects associated with Belviq.
It can cause serious side effects, according to the FDA, including serotonin syndrome, particularly when taken with certain medicines that increase serotonin levels or activate serotonin receptors. These include drugs commonly used to treat depression and migraine. Belviq may also cause disturbances in attention or memory.