
Adipex-P, commonly known as Adapex diet pills, is a prescription weight-loss drug. It is the brand name for the generic drug phentermine, a stimulant and appetite suppressant. Adipex-P is used in conjunction with diet and exercise to treat obesity, especially in people with risk factors such as high blood pressure, high cholesterol, or diabetes. It is available as a capsule or tablet and is typically used for short-term weight loss. While it can be effective, Adipex-P also comes with health risks and side effects, including fast heartbeat, high blood pressure, and restlessness, and the potential for misuse or dependence. It is important to consult with a healthcare provider before taking Adipex-P or any other weight-loss medication.
| Characteristics | Values |
|---|---|
| Brand Name | Adipex-P |
| Generic Name | Phentermine |
| Drug Class | Anorexiant (appetite suppressant), sympathomimetic amine |
| Availability | Prescription only, controlled substance, generic available |
| Dosage Forms | 15 mg, 30 mg, 37.5 mg oral capsules, 8 mg, 37.5 mg oral tablets |
| Dosage Frequency | Once a day before breakfast or 1 to 2 hours after breakfast |
| Side Effects | Fast heartbeat, high blood pressure, trouble sleeping, dizziness, restlessness, hallucinations, psychotic-like behaviors, heart valve problems, increased blood pressure in the lungs |
| Warnings | Do not use if pregnant or breastfeeding, history of heart disease, previous stroke, severe or uncontrolled high blood pressure, overactive thyroid, glaucoma, extreme agitation or nervousness, history of drug abuse, or if taking other diet pills |
| Interactions | Antidepressants (MAO-inhibitors, SSRIs), medications for diabetes |
| Storage | Room temperature (68-77°F or 20-25°C), protect from moisture and heat |
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What You'll Learn

Phentermine: Adipex-P's generic name
Adipex-P is a prescription weight-loss drug with a generic name of phentermine. It is a stimulant drug that suppresses appetite and can lead to weight loss, which is why it may be prescribed for weight loss or to help with binge eating disorder. Phentermine is commonly used short-term to help with weight loss in people who are overweight or have obesity, often in conjunction with other conditions such as high blood pressure, diabetes, or high cholesterol.
Phentermine is available as a capsule or tablet that is swallowed and is a controlled substance due to its potential for misuse and dependence. It is typically taken orally once a day before or after breakfast and should be used as part of a comprehensive weight reduction program that includes dietary changes, exercise, and other behavioural adjustments. It is important to note that phentermine should not be used during pregnancy or breastfeeding and has several contraindications, including a history of heart disease, previous stroke, severe or uncontrolled high blood pressure, and a history of drug abuse.
Phentermine has common side effects, including a fast heartbeat, high blood pressure, trouble sleeping, dizziness, and restlessness. More serious side effects may include abuse, heart valve problems, and increased blood pressure in the lungs, also known as pulmonary hypertension. Additionally, phentermine can cause tolerance, and misuse can lead to hallucinations and psychotic-like behaviours. It is crucial to take phentermine exactly as prescribed and inform your healthcare provider if you experience any bothersome side effects or feel that the medication is not working.
Phentermine is marketed under various brand names and formulations worldwide, including Acxion, Adipex, Duromine, Elvenir, Fastin, Ionamin, Lomaira, Panbesy, Qsymia, Razin, Redusa, Sentis, Suprenza, and Terfamex. It was approved for medical use in the United States in 1959 and remains a popular prescription medication, ranking as the 149th most commonly prescribed medication in the country in 2022.
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Appetite suppressant
Adipex-P, or Phentermine, is a prescription appetite suppressant. It is used to treat obesity, especially in people with risk factors such as high blood pressure, high cholesterol, or diabetes. Phentermine is usually prescribed as a short-term solution to help with weight loss in people who are overweight or obese. It is a controlled substance, as it can be misused and lead to dependence.
Prescription appetite suppressants can be for long-term or short-term use. Some over-the-counter (OTC) appetite suppressants are also available, but these may interact with medications or cause health problems, so it is important to check with a healthcare provider before using them.
Some examples of FDA-approved prescription appetite suppressants for short-term use include Benzphetamine, Diethylpropion, Phendimetrazine, and Phentermine. Long-term appetite suppressants approved by the FDA include Liraglutide, Semaglutide, Naltrexone-bupropion, and Phentermine-topiramate.
It is important to note that appetite suppressants should be combined with a reduced-calorie eating plan and regular physical activity to be most effective.
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Side effects
Adipex, or Phentermine, is a prescription weight loss pill for people aged 17 and older who are overweight or obese. It is typically taken once daily, in the morning, and works best when combined with a healthy diet and regular exercise.
- Dry mouth
- Trouble sleeping
- Headache
- Fast heartbeat
- High blood pressure
- Restlessness
In rare cases, Adipex may cause more serious side effects, including:
- Heart valve problems
- Increased blood pressure in the lungs
- Hallucinations or psychotic-like behaviours (when the medication is misused)
It is important to note that this list may not be exhaustive, and other side effects may occur. If you experience any adverse effects while taking Adipex, it is recommended to contact your healthcare provider or report the side effects to the FDA in the US by calling 1-800-FDA-1088.
Additionally, it is advised to avoid alcohol while taking Adipex, as it can worsen side effects. Before taking Adipex, it is crucial to inform your doctor about any other medications or supplements you are currently taking, as interactions with certain drugs should be avoided. Women who are pregnant or planning to become pregnant should also consult their healthcare provider, as there may be risks to the unborn child.
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Health risks
Adapex is the common misspelling of Adipex, which is the brand name for the prescription drug phentermine. Phentermine is a stimulant drug that suppresses appetite and can lead to weight loss. It is typically prescribed to adults and children aged 12 and older who are obese or to certain adults who are overweight and have weight-related medical problems.
While phentermine can be an effective tool for weight loss, it also comes with a host of health risks and may indicate disordered eating tendencies or increase the chance of developing disordered eating habits. It is a controlled substance due to its potential for misuse and dependence.
Phentermine can cause serious mental and physical health risks, especially if not taken with medical supervision. One of the primary risks is the development of eating disorders. It is dangerous to take phentermine without a prescription and medical oversight, as it may lead to disordered eating behaviours and a potential overdose. An overdose on phentermine may include psychotic symptoms such as auditory hallucinations and persecutory delusions.
Additionally, phentermine may rarely cause heart valve disease. It is important to contact your healthcare provider if you experience any symptoms of heart valve disease, such as shortness of breath, chest pain, or irregular heartbeat. Furthermore, phentermine may affect blood sugar levels, so those with diabetes should consult their healthcare provider about potential changes to their diet or medication.
Alcohol consumption while taking phentermine may also increase the risk of certain side effects, such as dizziness and drowsiness. Older adults, aged 65 and above, may be at a greater risk for some side effects and should discuss their risks with their healthcare provider. It is crucial to consult a healthcare professional and carefully consider the potential health risks before taking phentermine for weight loss.
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Misuse and addiction
Adipex-P, also known as phentermine, is a prescription weight loss pill for people aged 17 and older. It is typically taken orally once daily, usually in the morning, and is meant to be used in the short term. Adipex-P is an appetite suppressant that works by interacting with certain chemicals in the brain to reduce appetite. It is meant to be used in conjunction with a healthy diet and regular exercise.
Phentermine is a controlled substance and may lead to misuse or dependence. It is a stimulant medication similar to amphetamines, which can cause tolerance, meaning that the body gets used to the medicine and it seems to stop working. Misuse means taking the medicine in a way other than how it was prescribed, such as taking a higher dose or taking it without a prescription. Misuse can lead to serious side effects, including hallucinations or psychotic-like behaviours. It can also cause addiction, overdose, or even death.
To lower the risk of serious side effects and dependence, doctors typically prescribe a limited amount and quantity of phentermine at a time. It is important to take phentermine exactly as prescribed and to store it out of the reach of children in a safe place to protect it from theft. Do not stop using phentermine suddenly, as this can lead to unpleasant withdrawal symptoms. If you feel that phentermine is not working, talk to your healthcare provider.
Adipex-P should not be used by those with a history of heart disease, previous stroke, severe or uncontrolled high blood pressure, overactive thyroid, glaucoma, extreme agitation or nervousness, or a history of drug abuse. It should also not be taken with other diet medications or certain antidepressants without consulting a doctor, as this can cause dangerous drug interactions.
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Frequently asked questions
Adipex-P is a brand name for the prescription weight-loss pill phentermine. It is an appetite suppressant used to treat obesity. It is available as an extended-release capsule or a tablet and is only approved for short-term use.
Common side effects of Adapex diet pills include a fast heartbeat, high blood pressure, trouble sleeping, dizziness, and restlessness. Serious side effects may include abuse, heart valve problems, and pulmonary hypertension. Adapex diet pills can also cause dependence and addiction, and increase the risk of an eating disorder.
Adapex diet pills should not be used by those who are pregnant or breastfeeding. They should also not be used by those with a history of heart disease, previous stroke, severe or uncontrolled high blood pressure, overactive thyroid, glaucoma, extreme agitation or nervousness, or a history of drug abuse.











































