Phentermine Diet Pills: How Do They Work?

what does the diet pill phentermine do

Phentermine is a prescription-only weight loss pill that is approved for short-term use. It is similar to an amphetamine and works by stimulating the central nervous system, which increases heart rate and blood pressure and decreases appetite. It is usually taken for 12 weeks or less and is typically recommended for people with a body mass index (BMI) of 30 kg/m2 or greater, or a BMI of 27 kg/m2 or greater with other risk factors. It should not be taken by people with certain medical conditions, such as heart disease, glaucoma, or severe kidney or liver disease, or by women who are pregnant or breastfeeding. Common side effects include dry mouth, dizziness, fatigue, irritability, and constipation.

Characteristics Values
Purpose Speed up weight loss in overweight people
Usage Taken with a reduced-calorie diet and exercise plan
Dosage 15 to 30 milligrams once a day, 2 hours after breakfast
Duration 12 weeks or less
Form Tablet, capsule, disintegrating tablet, extended-release capsule
Side Effects Dizziness, drowsiness, fatigue, dry mouth, irritability, constipation, reduced energy levels
Precautions Not suitable for pregnant or breastfeeding women, those with glaucoma, overactive thyroid, severe heart problems, uncontrolled high blood pressure, coronary artery disease, extreme agitation, history of drug abuse, or MAO inhibitor use in the last 14 days
Interactions Benzphetamine, diethylpropion, mazindol, phendimetrazine, Bontril, Didrex, MAO inhibitors, herbal products, vitamins
Addiction May be habit-forming

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Phentermine is a prescription-only weight loss pill

Phentermine is intended for short-term use, usually for 12 weeks or less, and is approved for use in patients with a body mass index (BMI) of 30 kg/m2 or greater. It may also be prescribed to people with a BMI of 27 kg/m2 or greater if they have other risk factors, such as high blood pressure, diabetes or high cholesterol. It is not suitable for children under 16.

Phentermine is not suitable for everyone. It should not be taken by pregnant or breastfeeding women, or by those with a history of heart disease, glaucoma, hyperthyroidism, severe kidney or liver disease, or a history of drug abuse. It can also negatively interact with other medications, including MAO inhibitors, and herbal or dietary supplements, so patients should be transparent with their doctor about all substances they are taking.

Phentermine is usually taken as a tablet or capsule once a day, in the morning, and should not be crushed, broken or chewed. It can be taken with or without food and water. Patients should be careful to take the correct dose and frequency prescribed by their doctor.

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It is an appetite suppressant

Phentermine is a prescription-only appetite suppressant and weight loss pill approved for short-term use. It is used to speed up weight loss in overweight people and is typically used together with diet and exercise to treat obesity. Phentermine is usually taken for 12 weeks or less and is available only with a prescription. It belongs to a class of medications called anorectics, which work by reducing appetite.

Phentermine stimulates the central nervous system (nerves and brain), which increases heart rate and blood pressure. It is chemically similar to amphetamine. While the exact way phentermine suppresses appetite remains unclear, the drug is thought to act by increasing neurotransmitter levels in the brain. Neurotransmitters, such as norepinephrine, serotonin, and dopamine, are the body's chemical messengers. When levels of these three chemicals increase, the feeling of hunger decreases.

Phentermine is typically taken orally, with a glass of water, once per day in the morning. It should be swallowed whole and not crushed, broken, or chewed. The last dose of the day should be taken 4 to 6 hours before bedtime to avoid trouble with sleeping. It is important to carefully follow a doctor's instructions for a reduced-calorie diet plan and regular exercise while taking phentermine.

Phentermine may also be combined with another medication called topiramate, which is sold under the brand name Qsymia. This combination medication is taken by adults and children aged 12 years or older who are obese or overweight and have weight-related medical problems. It is important to note that phentermine should not be used by pregnant or breastfeeding women, as it can harm the unborn baby or cause harmful effects in infants. Additionally, it should not be used by those with a history of heart disease, hyperthyroidism, glaucoma, or severe kidney or liver disease.

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It is not suitable for pregnant or breastfeeding women

Phentermine is a prescription-only appetite suppressant and weight loss pill approved for short-term use. It is not suitable for pregnant or breastfeeding women. Weight loss during pregnancy can harm an unborn baby, even if the mother is overweight. If you become pregnant during treatment, you must stop taking phentermine and contact your doctor immediately. Studies in women who are breastfeeding have demonstrated harmful effects on infants. An alternative medication should be prescribed, or breastfeeding should be stopped while taking phentermine.

Phentermine is a drug approved for weight loss as part of a regimen of exercise, calorie restriction, and behaviour modification. It is usually taken for 12 weeks or less and is typically prescribed for people with a body mass index (BMI) of 30 kg/m2 or greater. It may also be prescribed to people with a BMI of 27 kg/m2 or greater if they have other risk factors, such as high blood pressure, diabetes, or high cholesterol.

Phentermine is similar in chemical structure to the stimulant drug amphetamine and belongs to a class of medications called anorectics. It works by reducing appetite. It stimulates the central nervous system (nerves and brain), which increases heart rate and blood pressure.

Phentermine should not be taken with other diet medications, such as fenfluramine (Phen-Fen) or dexfenfluramine (Redux), as this can cause a rare fatal lung disorder called pulmonary hypertension. It may also cause drowsiness, dizziness, fatigue, irritability, and constipation. It is important to be cautious when taking phentermine and to avoid activities that require mental alertness, such as driving or operating machinery, until you know how the medication affects you.

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It can cause drowsiness and fatigue

Phentermine is a prescription-only weight loss pill that is approved for short-term use. It is similar to an amphetamine and stimulates the central nervous system, which increases heart rate and blood pressure, and decreases appetite. It is intended to be used as part of a weight loss plan that also includes exercise, modifying behaviour and reducing calories.

Phentermine can cause drowsiness and fatigue. It is advised that you do not drive, use machinery, or do anything that requires mental alertness until you know how this medicine affects you. It is also recommended that you do not stand or sit up quickly, especially if you are an older patient, to reduce the risk of dizzy or fainting spells. Alcohol may increase dizziness and drowsiness, so it is advised that you avoid alcoholic drinks.

It is important to take the last dose of the day about 4 to 6 hours before bedtime, unless your doctor tells you otherwise, to avoid trouble with sleeping. Phentermine is not recommended for children 16 years of age and younger.

If you are experiencing fatigue or a lack of energy while taking phentermine, and the problem persists, you should consult your doctor.

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It should not be taken with other medications

Phentermine is a prescription weight-loss medication that can be effective when used appropriately and under medical supervision. However, it is important to note that phentermine should not be taken with other medications without first consulting a doctor or pharmacist.

Combining phentermine with certain other drugs can lead to serious, even life-threatening side effects. Phentermine has the potential to interact with many different medications, including over-the-counter drugs, herbal supplements, and other prescription medications.

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Frequently asked questions

Phentermine is a prescription-only appetite suppressant and weight loss pill. It is usually taken for 12 weeks or less and is approved for short-term use.

Phentermine belongs to a class of medications called anorectics, which work by reducing appetite. It stimulates the central nervous system, increasing heart rate and blood pressure.

Phentermine is approved for use by adults and children aged 17 and older. It may be prescribed to people with a body mass index (BMI) of 27 kg/m2 and other risk factors, or a BMI of 30 kg/m2 or greater.

Common side effects include dry mouth, dizziness, fatigue, irritability, and constipation. It may also cause drowsiness, reduced energy levels, and difficulty sleeping.

Phentermine should not be taken by those who are pregnant, breastfeeding, or have certain medical conditions such as heart disease, glaucoma, or severe kidney or liver disease. It can also interact with other medications, including MAO inhibitors and similar diet medications, which can lead to serious health risks.

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