There are a number of FDA approved prescription weight loss drugs. These prescription diet pills are generally short-term solutions, and available to those with a BMI over 27. Diet pills can be ordered on-line but we do not advise this unless you already have a current prescription. healthren.com

All pills have some kind of side effects. Please be careful and make sure you see your doctor first. healthren.com

Phentermine
This diet pill is an appetite suppressant for short term use. Comes in 3 strengths - 15, 30, and 37 milligrams.

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Xenical (Orlistat)
The Xenical prescription diet pill works by reducing the body's ability to absorb dietary fat by about one third. Use alongside diet, exercise, and behavior therapy. Approved for longer term use. healthren.com

Despite being heavily advertised, Xenical has some particularly difficult side effects. Because Xenical attempts to dispose fat that youe have consumed, many people report lots of trips to the bathroom, including foul-smelling oily excretions (particularly if they have overdone fatty foods). Doesn't seem quite so glamorous as the ads would have us believe.

Here are some common side effects from Xenical:

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• Oily or fatty bowel movements (stools)
• Increased number of bowel movements
• Urgent need and/or inability to control bowel movement
• Bowel movements that are orange or brown in colour
• Gas with discharge
• Oily discharge
• Stomach pain
• Irregular menstrual periods.

Bontril (Phendimetrazine)
Slow-release appetite suppressant diet pill approved for short-term use. Used along with diet, exercise, and behavior therapy.

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Tenuate (Diethylpropion)
Appetite suppressant diet pill for short term use. Supplement to diet and exercise in the treatment of obesity.

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Adipex, Ionamin (Phentermine)
Appetite suppressant diet pills for short term use. Supplement to diet and exercise in the treatment of obesity.

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Meridia (Sibutramine)
Meridia is a short-term diet pill intended to supplement to diet and exercise in the treatment of obesity. Meridia affects chemicals in the body that are related to weight maintenance.