10 Phentermine Side Effects You Should Know. Side Effects of Phentermine. Phentermine Side Effects in Females.

Phentermine helps manage weight, but side effects must be considered. These phentermine side effects can be short-term or long-term and affect different health aspects.

Phentermine Side Effects

Prescription phentermine can be helpful for people who are trying to lose weight and keep it off. However, it’s crucial to understand the risks involved before using it. The ability to make educated decisions about one’s health depends on one’s level of knowledge. Here are ten adverse effects of Phentermine that you should be aware of.

Phentermine Guide


Phentermine Uses

Phentermine is prescribed as part of a weight loss regimen that includes doctor-approved exercise, behavior modification, and a calorie-restricted diet plan. It is typically recommended for specific individuals who are overweight, particularly those dealing with obesity or obesity-related health issues. Shedding excess weight and maintaining a healthy weight can reduce many health risks associated with obesity, such as heart disease, diabetes, high blood pressure, and an increased risk of premature mortality.

The precise mechanism by which this medication aids in weight loss remains unclear. It may diminish appetite, elevate the body’s energy expenditure, or impact certain brain regions. Classified as an appetite suppressant, this medication belongs to a category of sympathomimetic amines.

How To Use Phentermine HCL

Follow your doctor’s instructions when taking this medication by mouth. Typically, it’s taken once a day, either 1 hour before breakfast or 1 to 2 hours after breakfast. If necessary, your doctor may modify your dosage, allowing for a small dose up to three times daily. Adhere closely to your doctor’s guidance. Taking this medication late in the day may lead to difficulty falling asleep (insomnia).

If you use sustained-release capsules, you should take a single dose each day before breakfast or at least 10 to 14 hours before bedtime. Swallow the capsule whole; do not crush or chew it, as breaking it open can release the entire dose immediately, increasing the risk of side effects.

The usual dosage for tablets that dissolve in the mouth is taken daily in the morning, with or without food. Before handling the tablet, ensure your hands are dry. Place the dose on the top of your tongue and let it dissolve, then swallow it with or without water.

The dosage and treatment duration are determined based on your medical condition and response to therapy. Your doctor will make the necessary adjustments to find the most suitable dose. Discuss with your doctor the potential risks and benefits of phentermine treatment and the recommended duration. To maximize its effectiveness, take this medication consistently, precisely as prescribed, and for the duration specified by your doctor. To aid in remembering, take it simultaneously (s) daily.

Abruptly discontinuing this medication may result in withdrawal symptoms, such as depression and fatigue. To mitigate the risk of withdrawal, your doctor may gradually reduce your dosage, mainly if you’ve been using phentermine for an extended period or at high doses. If you experience withdrawal symptoms, promptly inform your doctor or pharmacist.

It’s important to note that while this medication provides effective treatment for many individuals, there is a potential for addiction. This risk may be heightened if you have a history of substance use disorder involving excessive use or addiction to drugs or alcohol. Avoid increasing your dosage, taking it more frequently, or extending the duration of use beyond your doctor’s prescription. Make sure to discontinue the medication according to your doctor’s guidance.

Over time, you may find that this medication becomes less effective, typically after a few weeks of use. If you notice a decrease in its effectiveness, consult your doctor before considering any dosage adjustments. Only modify your dosage as directed by your doctor, who may ultimately instruct you to discontinue this medication.

Side Effects

Phentermine Side Effects

You may experience dizziness, dry mouth, sleep disturbances, irritability, or gastrointestinal symptoms like nausea, vomiting, diarrhea, or constipation. Should any of these effects persist or worsen, promptly notify your doctor or pharmacist.

It’s essential to remember that your doctor prescribed this medication because they determined that the benefits outweigh the potential side effects. Many individuals using this medication do not encounter severe adverse effects.

This medication may lead to an increase in your blood pressure. Monitor your blood pressure regularly and inform your doctor if you observe elevated results.

Notify your doctor immediately if you experience any severe side effects, such as a rapid, irregular, or pounding heartbeat, alterations in mental or emotional state (such as restlessness, uncontrolled anger, hallucinations, or nervousness), uncontrollable muscle movements, or changes in sexual interest or ability.

In the event of extremely severe side effects, cease using this medication and seek immediate medical assistance. These severe side effects include intense headaches, speech difficulties, seizures, weakness on one side of the body, or alterations in vision (such as blurred vision).

This medication may, on rare occasions, lead to severe and, in some cases, fatal lung or heart issues (such as pulmonary hypertension or heart valve problems). The likelihood of encountering these risks may increase with prolonged usage of this medication and its simultaneous use with other appetite-suppressant drugs or herbal products. Should you experience severe side effects, discontinue this medication and seek immediate medical assistance. These severe side effects include chest pain, difficulty breathing during physical activity, reduced exercise capacity, fainting, or swelling in the legs, ankles, or feet.

While extremely severe allergic reactions to this drug are infrequent, promptly seek medical attention if you observe any signs of a significant allergic response, such as a rash, itching, or swelling (particularly of the face, tongue, or throat), severe dizziness, or breathing difficulties.


Phentermine Risks

Before taking this medication, it’s essential to inform your doctor or pharmacist of any known allergies, including allergies to this medication, other sympathomimetic amines (such as decongestants like pseudoephedrine, stimulants like amphetamine, or appetite suppressants like diethylpropion), or any other allergens. This product might contain inactive ingredients capable of triggering allergic reactions or other complications, so it’s advisable to discuss this with your pharmacist for additional information.

Before using this medication, it’s vital to disclose your medical history to your doctor or pharmacist, particularly if you have a history of diabetes, high blood pressure, glaucoma, substance use disorder (involving excessive drug or alcohol use), heart conditions (such as chest pain, heart attack, heart murmurs, rapid or irregular heartbeats, or heart valve problems), mental health issues (like depression, suicidal thoughts, severe anxiety, or agitation), pulmonary hypertension (high blood pressure in the lungs), a history of stroke, hyperthyroidism (an overactive thyroid), kidney disease, or seizures.

This medication may cause dizziness, blurred vision, or, infrequently, drowsiness. Alcohol or marijuana (cannabis) consumption can intensify these effects. Therefore, avoiding activities requiring alertness or clear vision, such as driving or operating machinery, is essential until you can do so safely. Refrain from consuming alcoholic beverages, and if you are using marijuana (cannabis), consult your doctor.

If you have diabetes, regularly monitor your blood sugar as directed and share the results with your doctor. It may be necessary for your doctor to adjust your diabetes medication during your treatment with this drug.

For those using tablets designed to dissolve in the mouth, be aware that your medication might contain aspartame. If you have phenylketonuria (PKU) or any other condition that requires you to limit or avoid aspartame (or phenylalanine) in your diet, consult your doctor or pharmacist for guidance on the safe use of this medication.

Before surgery, inform your doctor or dentist about all the substances you are using, including prescription medications, over-the-counter drugs, and herbal products.

Older adults may face an increased risk of experiencing dizziness and elevated blood pressure when using this medication.

This medication should not be used during pregnancy, as it can harm a developing fetus. If you are pregnant or suspect you might be pregnant, promptly notify your doctor.

It’s important to note that this drug may enter breast milk and potentially adversely affect a nursing infant. Therefore, it is not advisable to breastfeed while using this drug. Consult your doctor for guidance before considering breastfeeding.


Phentermine Interactions

Interactions between drugs can alter how your medications function or heighten the risk of severe side effects. This document may not encompass all conceivable drug interactions, so it’s crucial to maintain a record of all the products you use, including prescription and over-the-counter medications and herbal products, and share this list with your doctor and pharmacist. Refrain from initiating, discontinuing, or modifying the dosages of any medicines without first obtaining your doctor’s approval.

It’s imperative to note that this medication should not be used concurrently with certain medications, as it could result in very severe interactions. If you have taken other appetite-suppressant drugs in the past year, such as diethylpropion or ephedra/ma huang, inform your doctor or pharmacist before commencing this medication.

Combining MAO inhibitors with this medication can lead to a potentially life-threatening drug interaction. Consequently, avoid taking MAO inhibitors (such as isocarboxazid, linezolid, metaxalone, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, or tranylcypromine) during your treatment with this medication. In most cases, MAO inhibitors should not be used for two weeks before initiating treatment with this medication. Consult your doctor for guidance on when to begin or discontinue this medication about MAO inhibitors.

Certain products that may interact with this medication include high blood pressure medications (like guanethidine or methyldopa), phenothiazines (such as prochlorperazine or chlorpromazine), other stimulants (including amphetamines, methylphenidate, or street drugs like cocaine or MDMA/”ecstasy”).

Inform your doctor or pharmacist if you are taking other substances that induce drowsiness, such as opioid pain or cough relievers (such as codeine or hydrocodone), alcohol, marijuana (cannabis), medications for sleep or anxiety (like alprazolam, lorazepam, or zolpidem), muscle relaxants (such as carisoprodol or cyclobenzaprine), or antihistamines (such as cetirizine or diphenhydramine).

Examine the labels of all your medications, including allergy or cough-and-cold products, as they may contain components that induce drowsiness. Consult your pharmacist for guidance on the safe utilization of these products.

Some products may include ingredients that elevate your heart rate or blood pressure. Inform your pharmacist about the substances you are using, and seek advice on their safe usage, particularly in the case of cough-and-cold products or dietary aids.

Consuming significant quantities of caffeine-containing beverages (such as coffee, tea, or colas) or consuming large amounts of chocolate can heighten the side effects of this medication. It is advisable to limit your intake of these caffeinated products.

This medication may interfere with specific medical or laboratory tests, such as brain scans for Parkinson’s disease, which could result in erroneous test outcomes. To ensure accurate results, ensure that laboratory personnel and all your healthcare providers know your use of this drug.


Phentermine Overdose

Call 911 if someone has overdosed and exhibits significant symptoms like fainting out or difficulty breathing. If not, immediately dial a poison control hotline.


Phentermine Imprint

Here’s a table providing information about Phentermine, including its typical dose, condition for use, color, shape, and imprint:

PhentermineTypical DoseColorShapeImprint
Phentermine 15mg15mgYellow & GrayOblongN1 N1
Phentermine 30mg30mgYellowOblongEL601 EL601
Phentermine 37.5mg37.5mgWhite-Blue SpeckledOvalMP 273
Phentermine’s color, shape, and imprint may vary depending on the manufacturer and country. The information provided in the table represents one typical formulation of Phentermine, but there may be variations in appearance.

10 Side Effects of Phentermine

1. Dry Mouth: Dry mouth, also known as xerostomia, is a frequent side effect of Phentermine. Staying hydrated and using sugar-free gum or lozenges can help alleviate discomfort.

2. Insomnia: Phentermine’s stimulating effects can lead to sleep disturbances. Taking the medication in the morning and adopting good sleep practices may mitigate this effect.

3. Increased Heart Rate: Phentermine can elevate heart rate and blood pressure. Monitoring cardiovascular health and consulting a healthcare professional is crucial, especially for individuals with preexisting heart conditions.

4. Dizziness and Headaches: Some users experience dizziness or headaches, often due to changes in blood pressure. Staying hydrated and avoiding sudden movements can help manage these symptoms.

5. Gastrointestinal Issues: Phentermine may cause gastrointestinal discomfort, such as constipation or diarrhea. Incorporating dietary fiber and maintaining a balanced diet can contribute to gut health.

6. Mood Changes: Mood swings, irritability, or mood changes are potential side effects. Open communication with your healthcare provider is essential to monitor any emotional changes.

7. Impaired Thinking: Phentermine’s stimulant properties might impact focus and concentration. Engaging in tasks that require alertness should be approached with caution.

8. Skin Irritation: Some individuals experience skin reactions, like rash or itching. If these symptoms occur, seeking medical advice is recommended.

9. Sexual Health Changes: Phentermine might affect libido and sexual function. Addressing any concerns with a healthcare professional is vital for maintaining overall well-being.

10. Dependency and Withdrawal: Extended use of Phentermine can lead to dependency. Gradual discontinuation under medical supervision can help mitigate withdrawal symptoms.

Phentermine Drug Facts

Phentermine Overview

Phentermine is a prescription medication commonly used as a short-term weight loss aid. It works as an appetite suppressant by stimulating the central nervous system. Phentermine is typically prescribed with a reduced-calorie diet, exercise, and lifestyle modifications.

It is important to note that Phentermine is not a cure for obesity and should only be used under the guidance of a healthcare professional. The medication may have potential side effects, and its effectiveness can vary between individuals. It is crucial to consult a healthcare provider to assess the suitability of Phentermine for your specific needs.

Phentermine Warnings

Phentermine comes with important warnings that should be considered before use. It is crucial to inform your healthcare provider about any pre-existing medical conditions, including heart problems, high blood pressure, glaucoma, or a history of drug abuse. Phentermine is not recommended for individuals with certain conditions or taking specific medications, such as MAO inhibitors.

It is essential to follow the prescribed dosage and avoid exceeding the recommended duration of use. Phentermine may cause side effects such as increased blood pressure, heart rate, or mood changes. Regular monitoring and close communication with your healthcare provider are necessary to ensure the safe and appropriate use of Phentermine.

Phentermine Long Term Side Effects

  • Dependence and Addiction: Phentermine is a stimulant medication that can lead to dependence or addiction when used for an extended period. Abruptly stopping Phentermine after long-term use may result in withdrawal symptoms.
  • Tolerance: Prolonged use of Phentermine can lead to the development of tolerance, meaning that the medication becomes less effective over time. This can reduce its weight loss benefits.
  • Cardiovascular Risks: Phentermine can increase heart rate and blood pressure, and long-term use may pose risks for individuals with pre-existing cardiovascular conditions or high blood pressure. Regular monitoring of cardiovascular health is crucial during extended Phentermine use.
  • Psychological Effects: Phentermine’s stimulant properties can potentially lead to psychological side effects, including mood swings, irritability, anxiety, or changes in mental well-being. Extended use may exacerbate these effects.
  • Nutritional Deficiencies: Phentermine suppresses appetite, which can lead to reduced food intake. Prolonged use without proper nutritional monitoring may result in deficiencies of essential nutrients.
  • Insomnia and Sleep Disruptions: Phentermine’s stimulating effects can interfere with sleep patterns, leading to chronic insomnia or sleep disturbances when used for an extended period.
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Phentermine Addiction Statistics

In this section, we will explore the concerning statistics surrounding Phentermine addiction. Understanding the prevalence and impact of Phentermine addiction is crucial for raising awareness about its potential risks and promoting responsible use of this weight loss medication.


Phentermine’s misuse and addiction potential have been documented, with approximately 8% of patients developing Phentermine dependence after prolonged use.

Source: Journal of Clinical Psychiatry


Emergency department visits related to the nonmedical use of Phentermine increased by 98% from 2005 to 2010.

Source: SAMHSA


Phentermine abuse and addiction were more common in individuals with a history of substance use disorders, with 73% of participants reporting prior substance abuse issues.

Source: American Journal of Addictions

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Phentermine Side Effects in Females and Males

Phentermine is a weight loss drug that can affect men and women differently. Some side effects are the same for both men and women, but others are different. Here’s how Phentermine affects both men and women:

For women:

  • Changes in Hormones: Phentermine may affect the balance of hormones in women, which could affect their menstrual cycles.
  • Breast Tenderness: Some women say that one side effect is that their breasts hurt.
  • Mood Swings: Changes in hormones can cause mood swings or emotional changes.
  • Libido: Phentermine could affect your sexual health and libido.

Phentermine side effects in males:

  • Cardiovascular Effects: Heart rate and blood pressure may increase more in men than women.
  • Focus and Alertness: Because Phentermine is a stimulant, it might make you more focused and alert.
  • Physical Performance: Some men may be able to work out better because they have more energy.
  • Urinary problems: Men may feel pain or change in how often they must go to the bathroom.
GenderCommon Side EffectsDistinct Effects
FemalesHormonal Changes, Breast Tenderness, Mood Fluctuations, Libido ChangesPhentermine may influence menstrual cycles and emotional well-being.
MalesCardiovascular Effects, Focus, and Alertness Physical Performance, Urinary ChangesPhentermine might impact heart rate, exercise capacity, and urinary patterns.

Comparison of Phentermine Side Effects in Females and Males

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Side Effects of Phentermine on the Brain

Phentermine, a drug used for weight loss, has stimulant properties that can affect brain function. While it may have some positive effects, it’s crucial to be aware of its downsides on the brain. Take a look at this:

  • Alertness and Focus: Phentermine’s stimulant nature might enhance alertness and focus, potentially aiding tasks that require concentration.
  • Nervousness: Some users report heightened nervousness or restlessness as a side effect of the drug’s impact on neurotransmitters.
  • Sleep Disruption: Phentermine can cause sleep disturbances, leading to insomnia or changes in sleep patterns.
  • Mood Changes: Stimulants like Phentermine may impact mood, leading to mood swings, irritability, or anxiety.
  • Dependency Risk: Prolonged use of stimulants like Phentermine can lead to dependency, impacting brain chemistry and potentially resulting in withdrawal symptoms.
  • Risk of Overuse: Misuse or overuse of Phentermine may strain brain function, causing adverse effects like headaches or increased heart rate.

Long-term Side Effects of Phentermine on Metabolism

Phentermine, a weight loss medication, can have lasting effects on metabolism, both positive and potentially concerning. Delve into the intricacies of its long-term impact:

Positive Effects:

  • Weight Loss: Phentermine’s initial effect on metabolism can reduce weight, suppress appetite, and increase calorie expenditure.

Potential Concerns:

  • Metabolic Adaptation: Prolonged Phentermine use might lead to metabolic adaptation, where the body adjusts to the medication’s effects, potentially reducing its efficacy over time.
  • Nutrient Absorption: Extended use may impact nutrient absorption, affecting the body’s ability to assimilate essential vitamins and minerals.
  • Dependence: Continued reliance on Phentermine to manage weight might hinder natural metabolic processes and potentially lead to dependency.
  • Metabolic Rate Changes: Long-term use can impact metabolic rates, potentially slowing metabolism and affecting weight maintenance.
  • Hormonal Imbalance: Sustained use might influence hormone regulation, potentially affecting thyroid and cortisol levels, which play roles in metabolism.
  • Cardiovascular Impact: Phentermine’s stimulant effects can impact heart rate and blood pressure, potentially affecting cardiovascular health in the long run.

Phentermine Side Effects Heart

Short-Term Side Effects of Phentermine:

  • Increased Heart Rate: Phentermine’s stimulant properties can temporarily increase heart rate, which may pose risks for individuals with underlying heart conditions.
  • Elevated Blood Pressure: Like heart rate, Phentermine can elevate blood pressure, necessitating cautious use, especially for those with hypertension.
  • Cardiovascular Stimulation: The medication’s stimulating effects can strain the cardiovascular system, leading to palpitations or irregular heartbeats in some individuals.

Long-term effects of phentermine on your heart:

  • Cardiovascular Adaptation: Prolonged Phentermine use might lead to cardiovascular adaptation, potentially reducing its initial impact on heart rate and blood pressure.
  • Dependency Risk: Continued reliance on Phentermine might impact heart health by influencing the body’s natural regulatory mechanisms.
  • Increased Cardiovascular Load: The stimulant nature of Phentermine can contribute to prolonged cardiovascular strain, potentially affecting heart health over time.
  • Impact on Blood Vessels: Long-term use could potentially impact blood vessel health, which plays a vital role in overall cardiovascular function.

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Phentermine is a stimulant drug that can have different mental side effects. The severity and frequency of these side effects from phentermine can vary from person to person.
Phentermine is a stimulant drug that can have different mental side effects. The severity and frequency of these side effects from phentermine can vary from person to person.

Phentermine Psychological Side Effects

Phentermine, a stimulant medication, can cause various psychological side effects. These side effects can vary in severity and occurrence among individuals. Some of the common psychological side effects associated with Phentermine use include:

  • Mood swings: Phentermine can lead to changes in mood, ranging from irritability and agitation to periods of elevated mood or euphoria. These mood swings can affect an individual’s emotional well-being and interactions with others.
  • Anxiety and restlessness: Some people may experience increased anxiety or restlessness while taking Phentermine. This can manifest as nervousness, racing thoughts, or an inability to relax.
  • Insomnia: Phentermine’s stimulant properties can interfere with sleep patterns, leading to difficulty falling or maintaining a restful sleep. Insomnia can further exacerbate other psychological side effects and impact overall well-being.
  • Psychiatric symptoms: In rare cases, Phentermine has been associated with the emergence or worsening of psychiatric symptoms such as hallucinations, delusions, or paranoia. These symptoms require immediate medical attention.

What Are Serious Side Effects Of Phentermine?

Even though serious side effects of Phentermine are uncommon, they can happen and need medical help immediately. If you take Phentermine and have any of the following serious side effects, you should see a doctor right away:

  • Chest Pain: Pain or discomfort in the chest can be a sign of a severe problem in the heart or blood vessels, like a heart problem or high blood pressure. If you take Phentermine and have chest pain, you must go to the hospital immediately.
  • Shortness of Breath: Having trouble breathing or feeling like you can’t get enough air can indicate a severe allergic reaction or a serious lung problem. If you have these symptoms, you must immediately see a doctor.
  • Severe Headache: Headaches are a common side effect of Phentermine, but if you have a severe or long-lasting headache along with other symptoms like vision changes, dizziness, or confusion, it could be a sign of something more serious that needs medical attention.
  • Severe Changes in Mood: Phentermine can change your mood, but if you have severe mood changes like extreme irritability, agitation, or thoughts of hurting yourself, you need to call your doctor right away.
  • Edema or swelling: If your hands, feet, ankles, or face swell up quickly or much, it could indicate an allergic reaction or fluid retention, and you should see a doctor.
  • Changes in Heart Rate or Rhythm: If you take Phentermine and your heart rate goes up or beats out of sync, you should see a doctor immediately. This could be a sign of a heart problem.

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  1. Are Phentermine 37.5 Side Effects Different From Phentermine 15mg Side Effects, or Phentermine 30 Mg Side Effects?

    The side effects of Phentermine can be similar regardless of the specific dosage strength. Phentermine 37.5mg, Phentermine 15mg, and Phentermine 30mg are all variations of the same medication and work similarly. However, it’s important to note that the likelihood and severity of side effects may vary depending on individual factors such as tolerance, metabolism, and overall health. It is always recommended to consult with a healthcare provider who can provide personalized advice based on your specific circumstances.

  2. What Are The Effects Of Phentermine On The Brain?

    Phentermine primarily works as a central nervous system stimulant. It affects neurotransmitters in the brain, such as norepinephrine, dopamine, and serotonin, which can help suppress appetite and promote weight loss. By influencing these neurotransmitters, Phentermine can increase alertness, focus, and mood. However, it’s important to note that Phentermine’s precise effects on the brain are complex and can vary between individuals.

  3. What Are The Eye Effects From Phentermine?

    While there are no specific eye-related side effects directly attributed to Phentermine, it’s important to note that this medication can increase blood pressure and heart rate. In rare cases, elevated blood pressure can affect eye health, leading to blurred vision or changes in visual perception. If you experience any visual disturbances while taking Phentermine, it is recommended to consult with a healthcare professional.

  4. How Effective Is Phentermine?

    Combined with a calorie-restricted diet, regular exercise, and other behavioral changes, phentermine can help people lose weight quickly. It’s meant to keep cravings at bay and help dieters stay on track. Phentermine’s efficacy varies from person to person, and many people need to make other changes to their routines to keep the weight off permanently. Before deciding if Phentermine suits you, talk to your doctor about your weight loss goals and expectations.

  5. What Are Phentermine Hcl Side Effects?

    Phentermine HCl (Hydrochloride) is the active ingredient in Phentermine. The side effects of Phentermine HCl are similar to those of Phentermine. They can include increased blood pressure, insomnia, dry mouth, dizziness, increased heart rate, gastrointestinal issues, mood changes, headaches, and sexual dysfunction. These side effects may vary in severity and occurrence between individuals.

  6. What Are Phentermine Mood Side Effects?

    Phentermine can potentially cause mood changes in some individuals. These mood side effects may include irritability, restlessness, anxiety, or changes in emotional well-being.

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Phentermine Side Effects Video

Discover how Phentermine aids weight loss and the holistic approach recommended, including exercise, behavior modification, and a calorie-restricted diet.

Uncover the potential downsides of Phentermine, from dry mouth to dependency. Learn practical tips to manage each side effect and ensure a smoother weight loss journey.

Watch The Prescription Drug Abuse & Prescription Medication Addiction Recovery & Sobriety Story Informative Video

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Search 10 Phentermine Side Effects You Should Know & Mental Health Topics & Resources
  1. American Heart Association. (2020). Symptoms of heart valve disease. Learn more: What are the side effects of phentermine?
  2. Baraness, L., et al. (2022). Acute headacheStatPearls. Learn more: What are the side effects of phentermine?
  3. Cosentino, G., et al. (2013). Phentermine and topiramate for the management of obesity: A reviewDrug Design, Development and Therapy. Learn more: What are the side effects of phentermine?
  4. Gordan, R., et al. (2015). Autonomic and endocrine control of cardiovascular functionWorld Journal of Cardiology. Learn more: What are the side effects of phentermine?
  5. Hendricks, E. J., et al. (2012). Blood pressure and heart rate effects, weight loss and maintenance during long-term phentermine pharmacotherapy for obesityObesity. Learn more: What are the side effects of phentermine?
  6. Johns Hopkins Medicine. (n.d.). Intensive behavioral therapy for obesity. Learn more: What are the side effects of phentermine?
  7. PD-Rx Pharmaceuticals, Inc. (2022). Phentermine hydrochloride [highlights of prescribing information]. Learn more: What are the side effects of phentermine?
  8. Wadden, T. A., et al. (1998). The fen-phen finale: A study of weight loss and valvular heart diseaseObesity Research. Learn more: What are the side effects of phentermine?