
Bontril, formerly known as phendimetrazine, is a prescription medication used to treat obesity. It is typically used in combination with diet and exercise to suppress appetite and aid in weight loss. Bontril is available in the form of immediate-release tablets or extended-release capsules and should be taken as directed by a doctor. While it can be effective for weight loss, Bontril also comes with certain warnings and side effects, and it is not suitable for everyone. It is important to consult a healthcare professional before taking Bontril or any other weight-loss medication to ensure safe and appropriate use.
| Characteristics | Values |
|---|---|
| Brand Name | Bontril |
| Generic Name | Phendimetrazine |
| Other Brand Names | Bontril PDM, Adipost, Anorex-SR, Appecon, Melfiat, Obezine, Phendiet, Plegine, Prelu-2, and Statobex |
| Dosage | 35mg, 105mg |
| Dosage Frequency | 2-3 times per day |
| Dosage Form | Immediate-release tablet, extended-release capsule |
| Purpose | Weight reduction |
| Mechanism of Action | Suppresses appetite, increases metabolism |
| Side Effects | Restlessness, headache, high blood pressure, irritability, anxiety, low blood sugar (hypoglycemia) |
| Contraindications | Glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, advanced coronary artery disease, extreme agitation, history of drug abuse, MAO inhibitor use in the past 14 days, pregnancy |
| Interactions | Benzphetamine, diethylpropion, mazindol, phentermine, Didrex, Suprenza, MAO inhibitors, alcohol, caffeine |
| Age Restriction | Not approved for use in children under 12 years old |
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What You'll Learn

Bontril is used to treat obesity
Bontril is a prescription sympathomimetic medication used to treat obesity. It is typically used in combination with a doctor-approved, reduced-calorie diet, exercise, and a behaviour change program. Bontril is used to treat patients who are significantly overweight (obese) and have not been able to lose weight with diet and exercise alone. The medication suppresses appetite and increases metabolism.
Bontril is the brand name for phendimetrazine, a drug that works like amphetamines to treat obesity. Phendimetrazine stimulates the central nervous system and raises blood pressure. It is also referred to as an anorectic, which is a drug that helps with weight loss by reducing appetite. It works by activating the body's alpha-adrenergic system, which suppresses appetite and increases metabolism. It also works to release norepinephrine and dopamine by binding to and reversing the NET, a transport system for these hormones.
Bontril is available as an immediate-release tablet taken by mouth two to three times per day, and an extended-release capsule taken once per day. The recommended dosage is one tablet (35 mg) two to three times daily, one hour before meals. It is important to note that Bontril should not be taken during pregnancy as it may harm the unborn baby. It is also not suitable for those with glaucoma, an overactive thyroid, severe heart problems, uncontrolled high blood pressure, advanced coronary artery disease, extreme agitation, or a history of drug abuse.
Bontril has been effective for many patients in losing weight. However, it is a stimulant, which can lead to increased anxiety and irritability. It is also a controlled substance, which means it is more likely to be misused or cause dependence. Therefore, it is important to carefully follow a doctor's instructions for dosage and only take the medication for the indicated period.
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It is a prescription sympathomimetic medication
Bontril is a prescription weight-loss medication that falls into the category of drugs known as sympathomimetic amines. This class of drugs is designed to mimic the effects of certain natural chemicals in the body, specifically neurotransmitters like norepinephrine and dopamine. By doing so, Bontril helps suppress appetite and increase metabolism, leading to weight loss.
As a prescription medication, Bontril is typically recommended for individuals who are obese or have a body mass index (BMI) of 30 or higher. It can also be prescribed to those with a BMI of 27 or higher if they have other risk factors, such as high blood pressure, type 2 diabetes, or high cholesterol. Bontril is intended for short-term use, usually not exceeding a few weeks, as part of a comprehensive weight-loss plan that includes a reduced-calorie diet and regular physical activity.
Being a stimulant, Bontril affects the central nervous system and can increase alertness and energy levels. It works by stimulating the release of neurotransmitters, which sends signals to the brain that reduce hunger cravings and increase feelings of fullness, even when consuming smaller portions of food. This helps individuals taking Bontril adhere to a calorie-controlled diet and reduce their overall calorie intake.
The medication comes in two forms: Bontril PDM (phendimetrazine tartrate), which is a short-acting formulation, and Bontril SR (slow release), which is a long-acting formulation. The short-acting formulation is typically taken two to three times a day, about 30 to 60 minutes before meals, while the long-acting formulation is usually taken once daily in the morning. It is important to follow the prescribed dosage and not take Bontril for longer than recommended, as prolonged use can lead to dependence and tolerance.
Like all prescription medications, Bontril does come with certain side effects. Common side effects include restlessness, nervousness, difficulty sleeping, dry mouth, and an unpleasant taste. More serious side effects may include chest pain, pounding heart, difficulty urinating, mood changes, and severe headache. It is important to discuss potential risks and benefits with a healthcare provider before taking Bontril or any other weight-loss medication.
It is also important to note that Bontril should not be taken by everyone. Individuals with certain medical conditions, such as heart disease, glaucoma, overactive thyroid, or a history of drug abuse, should not take Bontril. It is also not recommended for women who are pregnant or breastfeeding. As always, it is crucial to consult with a healthcare professional to determine if Bontril is an appropriate weight-loss option based on individual health status and needs.
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Bontril is the brand name for phendimetrazine
Phendimetrazine is typically used in combination with a doctor-approved, reduced-calorie diet, exercise, and a behaviour change program to help patients lose weight. It is meant for people who are significantly overweight (with a BMI of 30 kg/m2 or higher) and have not been able to lose weight through diet and exercise alone. The medication suppresses appetite and increases metabolism, making it easier for patients to stick to their weight loss plans.
Bontril comes in the form of immediate-release tablets $(35 mg) and extended-release capsules (105 mg). The typical dose is one tablet, two to three times per day, one hour before meals. The maximum dose is two tablets, three times per day. For the extended-release capsules, the typical dose is one capsule per day, taken 30 to 60 minutes before a meal.
Phendimetrazine is a controlled substance, which means it is more likely to be misused or cause dependence. It is a short-term treatment option, as the body can become used to the drug, rendering it less effective over time. It is also important to note that Bontril should not be taken during pregnancy, as it can harm the unborn baby.
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It works as an appetite suppressant
Bontril, also known as phendimetrazine, is a prescription medication used to suppress appetite and help with weight loss. It is intended for use by adults who are obese and have been unable to lose weight through diet and exercise alone. The drug is typically used in conjunction with a doctor-approved, reduced-calorie diet, exercise, and a behaviour change program.
Phendimetrazine is a sympathomimetic medication, which means it works by stimulating the central nervous system and raising blood pressure. It activates the body's alpha-adrenergic system, which suppresses appetite and increases metabolism. It also works to release norepinephrine and dopamine by binding to and reversing the NET, a transport system for these hormones.
The medication is available in two forms: immediate-release tablets and extended-release capsules. The immediate-release tablets are typically taken two to three times per day, one hour before meals, with a maximum dose of two tablets three times per day. The extended-release capsules are taken once per day, 30 to 60 minutes before a meal. It is important to note that Bontril should not be crushed, chewed, broken, or opened before consumption. The pill should be swallowed whole to avoid releasing too much of the drug at once.
Bontril is a controlled substance and is more likely to be misused or cause dependence. It is important to carefully follow the instructions provided by a doctor and to be aware of potential side effects, such as restlessness, headache, and high blood pressure. The medication may also interact with other drugs, including prescription and over-the-counter medicines, vitamins, and herbal products. Therefore, it is crucial to inform your doctor of any medications or supplements you are currently taking.
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Bontril is not suitable for everyone
Bontril is a prescription sympathomimetic medication, formerly known as phendimetrazine, that is used in combination with diet and exercise to suppress appetite and treat obesity. It is not suitable for everyone and should not be used by those with specific health conditions, drug interactions, allergies, or during pregnancy.
Firstly, Bontril is not suitable for individuals with specific health conditions. It is contraindicated in people with glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, advanced coronary artery disease, extreme agitation, or a history of drug abuse. Additionally, those with an initial BMI below 27 kg/m2 who have not responded to appropriate weight-reducing regimens are not advised to take Bontril.
Secondly, Bontril should not be taken by individuals who have used MAO inhibitors within the past 14 days. MAO inhibitors include drugs such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others. Combining Bontril with these medications can lead to dangerous drug interactions and serious side effects.
Moreover, Bontril is not suitable for pregnant women. Weight loss during pregnancy, even in cases of overweight or obesity, can harm the unborn baby. Therefore, it is essential for women who are pregnant or planning to become pregnant to avoid taking Bontril.
It is also important to note that Bontril is not approved for use by anyone younger than 12 years old. Additionally, individuals with allergies to phendimetrazine or other substances should refrain from taking Bontril. Before taking Bontril, it is crucial to consult a doctor and disclose any history of unusual or allergic reactions to medications or other allergens such as foods, dyes, preservatives, or animals.
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Frequently asked questions
Bontril is a prescription medication used to treat obesity in patients who have not been able to lose weight through diet and exercise alone. It is typically used alongside a doctor-approved, reduced-calorie diet, exercise, and a behaviour change program.
Bontril is an appetite suppressant that works by activating the body's alpha-adrenergic system, which suppresses appetite and increases metabolism. It is also known to release norepinephrine and dopamine.
Common side effects of Bontril include restlessness, headache, irritability, and high blood pressure. It may also cause pulmonary hypertension and can be habit-forming. It is important to note that Bontril should not be taken during pregnancy as it can harm the unborn baby.
The typical dosage of Bontril is one tablet (35 mg) taken two to three times daily, one hour before meals. It is important to follow the instructions provided by your doctor, as the dosage may vary depending on individual needs.
Bontril should not be taken by individuals with certain medical conditions, such as glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, or a history of drug abuse. It should also not be taken with certain medications, including MAO inhibitors, due to the risk of serious drug interactions. Additionally, individuals with allergies to any of the ingredients in Bontril should avoid taking it.











































