Phentermine: danger!

[Article updated on 19/09/2023]

THE appetite suppressant medications are very popular because they help you lose weight without dietary or sport restrictions.

Before reading on

I’m not an expert in this field, but I am passionate about nutrition and health.

The articles you’ll find on my site are the result of in-depth research that I’d like to share with you. However, I would like to stress that I am not a health professional and that my advice should in no way replace that of a qualified physician. I’m here to guide you, but it’s important that you consult a professional for specific questions or medical concerns. Your well-being is important. So be sure to consult the appropriate experts and take the best possible care of yourself.

Some of them are very effective while others are harmful strongly to health. Phentermine is among those which represent a enormous danger for its consumer.

Everything about this substance will be given to you in the following lines, in particular a brief presentation, its mode of action, its side effects and why you should avoid them take.


It is important to know exactly what amphetamine to better understand the reasons why consumption phentermine is dangerous.

Phentermine is a derivative of amphetamine, hence its dangerous nature.

It’s what ?

Discovered around 1887, amphetamine is classified among the drugs in the majority of countries. However, it is a psychostimulant, which, in the short term, boosts energy. Just like the phentermine, it is part of the phenylethylamine family.

Moreover, it is very often used as a sleep delay. During the Second World War, for example, participants took it so that the fight could continue even during the night.

It is also common to find it among the components of medications for morbid obesity, smoking and childhood hyperactivity or attention deficit hyperactivity disorder (ADHD). However, most of them are not no longer marketed currently due to the seriousness of the side effects that they generate.

Here are the harmful consequences of amphetamine on health human.

Addiction and anorexia

It is this anorexigenic property which is mainly exploited in the phentermine, yet it is sometimes fatal.

At low doses, that is to say for consumption over a short period, amphetamine reduces appetite. But in the long term, it leads to severe anorexia which completely eliminates any desire to eat. Some people even die from it.

The problem is that it is also addictive. She favors an overproduction of certain neurotransmitters such as dopamine, adrenaline or even serotonin, responsible for behavior and well-being.

Thus, the consumer feels a certain form of happiness and satisfaction and always wants more, hence addiction.

And one thing leads to another, the individual comes to forget to feed and only takes the substance.

Depressed state

Many might wonder why it would cause a depression while it stimulates the release of happiness hormones.

In fact, if taken for a long time, it happens that a certain moment, there are no longer enough neurotransmitters, so much production is excessive.

So, when the effects of those which are already secreted diminish, the the brain is no longer capable of producing it and the consumer gradually begins to feel less well until reaching a depressive state.

But the most dangerous thing is that taking and the consequences of amphetamine represent a circle vicious extremely difficult to break.

Take for example the case of a person who wants to lose weight. and decides to take phentermine (derived from amphetamine).

It takes about 10 weeks of treatment to see any effectiveness. She has plenty of time to develop an addiction. Coming to term of She still wants her treatment. She has the choice between continuing to take or stop.

If she decides to continue her catch, she will surely end up have a serious eating disorder. Otherwise, it would risk first of falling into a depressive state due to the lack of dose. At this stage, Most addicts return to their old demons.

In the end, she will face another depression because of the depletion of the stock of well-being neurotransmitters. You surely see the dangers of taking these kinds of substances, even for medical purposes.

Deterioration of cells and vital organs

Inside the body, amphetamine also damages cells and disrupts their proper functioning. These actions are most of the time very serious and irreversible.

In addition to being addictive, phentermine presents dangers to physical and mental health.

Consequently, the abusive consumer risks dying more quickly and to face brain diseases or behavioral disorders more or less serious:

  • Delirium;
  • Anxiety attack ;
  • Autism;
  • Sleep disturbance;
  • Strong irritability and much more.

Furthermore, the body is not capable of ensuring the elimination of these substances and their effects for consumption in large quantities. He doesn’t even have time to act on the old ones when the new ones are already ingested.

Thus, key organs like the kidneys and liver are forced to run much faster in order to eliminate all toxins. Has a At some point, they become exhausted and no longer function normally. This is how as symptoms of kidney failure, heart attacks or infections urine surfaces.

What is phentermine?

Phentermine is a substance from the phenylethylamine family. It is known as 2-methyl-1-phenylpropan-2-amine or 2-methyl-amphetamine in the field of chemistry.

Generally, it is used in manufacturing the most powerful slimming capsules. Its consumption is only recommended for people in the morbidly obese phase who need to lose weight very quickly due to health problems.

It made its first appearance on the market in 1959 under FDA (Food and Drugs Administration) authorization. At that time, she was mainly prescribed to limit the appetite of overweight people.

Following progress in research, it was placed on the list of narcotics in Europe around February 2012.

Moreover, medicines containing it are currently banned in France, without medical prescriptions. As it is over the counter in some foreign countries, it is possible to obtain on the internet.

However, if you are caught in possession of this type of substance, you risk being prosecuted by the numerous competent authorities.

How does phentermine work to reduce appetite?

Phentermine acts on neurons to promote the production of catecholamines, neurotransmitters which indicate any shock.

Thus, the body considers this excess hormone as the consequence of a stressful situation regarding food, and the appetite automatically decreases.

It is also because of this mode of operation that this substance is dangerous. The person is perpetually in a state of anxiety throughout the treatment and ends up facing many disorders mental and cardiac over use.

What are the consequences of consuming phentermine?

Weight loss

If phentermine is so popular, it is because it promotes fast and effective weight loss without diet or sport.

In the majority of cases, excess weight is caused by overeating. An individual’s caloric intake depends on their age, sex and the activities he practices.

If he eats little, he cannot fill them and ends up losing weight. Otherwise, the energies are transformed into fat and it takes on weight.

Without burning fat, phentermine reduces the feeling of hunger which causes the patient to consume less food. In this way, if the cause of his obesity is the excess of food, he will lose weight more quickly. He will no longer even want the little cravings in the middle of the day.

Phentermine is appreciated for its appetite suppressant power.

When it was still available for sale, many people testified that thanks to this substance, they lost approximately 1.5 kg per week.

But in return for this action, it causes effects considerable secondary effects which earned him a ban on marketing.

Stress and anxiety

The small, fleeting moments of anxiety and stress caused some kind of problem happens to everyone and is normal. It is When the condition becomes chronic the situation becomes complicated.

The patient is highly exposed to cardiovascular diseases. According to a study carried out over 4 years on nearly 500 people, THE people experiencing high levels of stress have approximately 1.5 times more risk of heart disease.

On the psychological side, stress and anxiety often cause severe irritability, mood swings, inability to sit still and even madness in some cases. This situation greatly affects life social status of the person concerned.

However, as previously stated, phentermine causes perpetual state of stress in its consumer. It therefore represents a real danger in all aspects of his life.

The addiction

Just like drugs, phentermine is addictive. Moreover, it is an isomer of methamphetamine.

A course of medication of which it constitutes the main component lasts about 10 weeks, 12 at most.

When the patient stops taking it, he presents the symptoms of a withdrawal such as anxiety, hot flashes, insomnia, irritability or even depression. Some people even manage to take it again to fill them with what they lack.

Other side effects of phentermine

The consequences mentioned above are the most dangerous. However, there are other important side effects:

  • Abnormal acceleration of heartbeat heart ;
  • High blood pressure;
  • Nausea and vomiting;
  • Dry mouths;
  • Vision problems: decrease progressive vision or inability to discern colors;
  • Skin irritation (acne, eczema, etc.);
  • Headache.

In the most serious cases, it is possible that from the first taken, the patient observes swelling of his lips or presents with difficulty breathing. This is because he is allergic or intolerant so he You must quickly go to the nearest hospital or call the emergency room.

A study conducted on phentermine

It’s about a research conducted in Amsterdam. Around 750 people whose body mass index was between 30 and 45 participated. The objective was to determine the effectiveness of phentermine for weight loss.

Some took phentermine while others just received placebos. Neither doctors nor patients were made aware of the distribution of fees. The experience lasted around 6 months.

After this period, it was found that those who consumed phentermine lost between 5.5 to 6 kg, regardless of the dose they took administered. On the other hand, those who had the placebos lost little close to 1.5.

Furthermore, a completely different group of people (drawn from the 750) combined phentermine with topiramate. At the end of this same period, a drop in 8.5 to 9 kg was observed depending on the quantities ingested.

Studies have shown that phentermine is effective for weight loss.

When should phentermine be consumed? Is it authorized and under what conditions?

It is clear that phentermine is not recommended. The ban on free sale on European territory is proof of this. However, it is always available under medical prescription.

Indeed, the lives of certain people are seriously threatened due to of obesity then it is absolutely necessary that they lose weight as much as possible quickly possible.

In this case, phentermine remains the best solution since at the end of six months, as the previously mentioned study showed, the reduction in the body mass is considerable.

However, it is obligatory to follow the quantities to the letter prescribed to avoid overdoses which can be fatal.

And then, it is also essential that the treatment is rigorously monitored by a professional to limit the risks of dependence and excess.

Finally, it is strictly forbidden to take it if you present any form of allergy, suffer from hypertension, glaucoma, hyperthyroidism, heart disease or suffer from an addiction to drugs or tobacco.


Although phentermine seems to be the perfect medication for rapid weight loss, it is in fact a very dangerous substance which, in the long run term, causes serious physical and/or psychological disorders, sometimes fatal and irreversible. This is also the reason why it is not available only under medical prescription in France. If some foreign sites offer them, it is note that the purchase or possession of this type of substance is prohibited by law. law and are liable to legal action. If you want to lose weight effective but healthy way, why not opt ​​for natural remedies, such as a balanced diet, physical activities, lemon water and many others ? At the very least, opt for medication composed of natural ingredients if you really don’t want to resort to dietary restrictions and sport.