Tag Archives: qnexa

The Dangers of Phentermine

The FDA just rejected the prescription weight loss drug, Qnexa, because of its potential for adverse cardiovascular effects. While weight loss drugs are fraught with health risks, in regards to Qnexa, the finger points to the drug’s main ingredient, phentermine.

Phentermine is a kind of amphetamine that stimulates the nervous system, and increases heart rate and blood pressure. It is often used in diet pills because it suppresses appetite. Brand names of phentermine are Adipex-P, Obenix, Oby-Trim.

You might remember a weight loss drug called Fen-Phen. This dangerous diet pill was yanked from the market by the FDA in 1997 because of its association with serious cardiovascular problems. Phentermine was the “Phen” in Fen-Phen. Along with fenfluramine (“Fen”), the duo of ingredients was linked to heart and pulmonary emergencies, many of which resulted in death.

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Posted on July 18, 2023 by heather

FDA Rejects Diet Pill Qnexa

Qnexa, what would have been the first new weight loss drug in a decade, was rejected in a narrow vote by the Food and Drug Administration. They reported concerns about the lack of data about the pill’s cardiovascular effects. The committee voted 10-6 against Qnexa, created by Vivus, Inc., which contains one of the active ingredients found in Fen-phen. Fen-phen was taken off the market because it was linked to heart damage.

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Posted on July 16, 2023 by Margaret

Three New Weight Loss Pills Await FDA Approval [UPDATED]

Three new weight loss pills

UPDATE: FDA Rejects Qnexa (7/16/2024)

The Huffington Post reported that on Monday, the Food and Drug Administration is expected to release the review of Vivus Inc.’s pill, Qnexa. The first of three new weight loss drugs to be assessed by the FDA, Qnexa showed promising results in clinical trials. Patients lost between 13 and 15 percent of their body weight, but many who began the trial dropped out due to side effects, which included memory and concentration problems. (more…)

Posted on July 15, 2023 by Margaret