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Phentermine Adipex Difference

Adipex is the brand name for Phentermine manufactured by Teva Pharmaceuticals. Other types of Phentermine use different brand names. It is available in two forms, 37.5mg instant release tablet and 37.5mg capsule. Phentermine is a generic drug that has been out of patent for a long time, meaning that all manufacturers are able to manufacture and sell it.

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While Phentermine is the same medication regardless of brand, there is one fact that should be noted. Phentermine is available in several different dosages, with 15mg, 30mg, and 37.5mg doses that are available in pill (instant release) and capsule (extended release) form. Adipex specifically is available in the 37.5mg dose in both instant release and extended release form. Phentermine that is manufactured by manufacturers other than Teva Pharmaceuticals may have a different appearance. It is also available in more doses, so if your doctor prescribes you with a 15mg or 30mg Phentermine dose then it is unlikely that you will be given a different type of Phentermine, although the Phentermine that the pharmacy does dispense will be identical except for the dosage.

One difference between Adipex (along with other forms of pure Phentermine) is that it consists of Phentermine only, and not in combination with any other drug. However, there are drug combinations available by prescription either presently or in the past. One combination drug available presently is Qsymia, which is a combination of Phentermine and Topiramate, which is an anticonvulsant medication that is commonly taken by patients suffering from seizures. Unlike Phentermine by itself this combination medication is approved for patients to take for weight loss over the long term, although potentially serious side effects still exist.

Fen-Phen was another weight loss drug that included Phentermine along with fenfluramine. The FDA withdrew it from the market in 1997 after reports emerged that the drug caused serious harm to patients. Its manufacturer, American Home Products (which later changed its name to Wyeth) ended up setting aside a total of $21 billion to pay for legal judgments associated with Fen-Phen. The FDA found that the problems with Fen-Phen were caused by fenfluramine, a drug that boosts serotonin content and makes patients feel full. While Phentermine remains available on the market, fenfluramine was withdrawn entirely by the FDA in 1997 and is no longer available. Patients who took either fenfluramine or Fen-Phen have suffered high rates of valve abnormalities and may have had to undergo heart surgery to repair them. The story of Fen-Phen and its legacy of lifelong complications is a cautionary tale about the dangers of mediations of this type and the side effects that they can potentially cause.