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Diethylpropion
(Brand names: Tenuate or Dospan)


How Diethylpropion works


Diethylpropion (Brand names: Tenuate or Dospan) is in a class of medicines called sympathomimetics. This is the same class that the weight loss drug sibutramine (Meridia or Reductil) is in. They work by increasing the activation of a branch of the nervous system called the sympathetic nervous system. One of the effects of activating the sympathetic nervous system is a decrease in appetite. That is, people are less hungry on the medicines.

Pros

When diethylpropion (brand names Tenuate or Dospan) is combined with healthy lifestyle changes, studies have shown that people lose weight.

Cons

It is only approved for short term use. This is generally considered to be about 12 weeks. When most people stop using diet pills, they gain back the weight.

There are several side effects to this class of drugs. High blood pressure and increased heart rate are the most significant. Others include  dry mouth, nervousness, constipation, and insomnia. Diethylpropion is a schedule IV prescription drug. This means there are more restrictions on its use.

Other Comments

This weight loss medicine does not replace diet and exercise. You should thoroughly discuss the risks and benefits of diethylpropion with your doctor before using it.

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It is important you discuss any weight loss or exercise plan with your doctor. Only you and your physician can decide what is best for you. Some people have certain conditions that prevent them from doing all exercises, and goal body weights may be different for different people. You need to discuss all these things with your physician before starting any weight loss or exercise program. In addition, the dosage of any medicine may be different if it is used for weight loss and not its FDA approved indication. You should also discuss this with your doctor.

This article was written by John Vickery, MD.

References

Ann Intern Med 2005;142:525-531
“Drug therapy of Obesity” Up To Date version 15.3
Treatment Guidelines from the Medical Letter 2008;6:23-28

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