Weight Loss Drugs Prescription and OTC »
Taking a weight loss drug may not result in weight loss by itself. But using diet pills can help an overweight person stay on a diet because nearly all of these medications work on suppressing appetite. "Feeling full" is believed to be related to a number of biochemical processes in the body. Signals to indicate fullness come from fat cells and the gastrointestinal tract; these converge with signals in the central nervous system. Appetite suppressants target a couple of key neurotransmitters in this process: serotonin and norepinephrine. Increased levels of serotonin result in a feeling of fullness. Increasing norepinephrine levels stimulate the central nervous system, decreasing appetite. Only one drug among the weight loss medications works in a different way. Orlistat (Xenical, Alli) works in the gastrointestinal tract to prevent absorption of about a third of ingested fat.
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You cannot take phendimetrazine if you
Before taking this medication, tell your doctor if you have
You may not be able to take phendimetrazine, or you may require a lower dose or special monitoring during treatment if you have any of the conditions listed above.
It is not known whether phendimetrazine will harm an unborn baby. Do not take phendimetrazine without first talking to your doctor if you are pregnant.
It is also not known whether phendimetrazine passes into breast milk. Do not take phendimetrazine without first talking to your doctor if you are breast-feeding a baby.
Take phendimetrazine exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
Take each dose with a full glass of water.
Phendimetrazine is usually taken once a day (sustained release formula) or two to three times daily (immediate-release formula) before meals on an empty stomach.
Do not take phendimetrazine in the evening because it may cause insomnia.
Do not crush, chew, or open any "once-daily" phendimetrazine tablets or capsules. Swallow them whole.
Never take more of this medication than is prescribed for you. Too much phendimetrazine could be very dangerous to your health.
Store phendimetrazine at room temperature away from moisture and heat.
Here is a collection of user reviews for the medication Bontril SR sorted by most helpful.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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