Diet Pills Reviews

Phentermine Review

The market of weight loss products and supplements offers an abundance of options, which are constantly doubted and assessed. We aren’t going too far from the users of diet pills and decided to research Phentermine weight loss drug from all the sides we could. Thus, we got squashed under tons of information, reviews, forums, studies and opinions. We dug our way out and systematized the info we discovered in this Phentermine review.

Phentermine basics

The history of Phentermine use goes back to 1950’s and continues up until present time. The first Phentermine pills were available for the USA citizens with a prescription. In fact, you still can get this slimming drug with a prescription only, for very serious reasons.

Since Phentermine is a very potent drug, which can cause side effects from mild and passing to serious and severe, people, who decide to use it as a tool for weight loss, should be carefully examined by a doctor before they are prescribed the drug.


It is very important to understand that no matter how much you want to lose weight, your health is a top priority. Do not hide from your prescribing physician any conditions you are suffering from or any drugs you are taking at the moment. This information can be crucial for your further health and life.

Intolerance or abnormal physical reaction to the drug

If you know that you are allergic to any components of Phentermine, you should not take it, since such immune reactions can damage your health, bring a lot of discomfort or cause death.

Administration of MAOIs

Phentermine should not be used, if less than 2 weeks passed after the ingestion of MAOIs, since their interaction can cause:

  • nausea, muscle stiffness, altered consciousness levels, increased body temperature, which altogether make up the serotonin syndrome
  • sharp and drastic rise of your blood pressure, which can result in stroke, which is referred to as the hypertensive crisis.

Diseases of the cardiovascular system

If you have been suffering from a cardiovascular condition in the past or are suffering from one at the moment, you should discuss the possibility of using Phentermine namely with a cardiologist. A high-qualified consultation can help identify a problem, which is not evident, and help prevent serious complications.


Phentermine can cause dilation of the eye pupils and increase the pressure inside the eye, which, in turn, is capable of causing an acute glaucoma attack. Do not underestimate the importance of eye examination, especially if one or more members of your family suffer from glaucoma.

Overactive Thyroid

Many people let hyperthyroidism left unnoticed for quite a long time, because they tend to connect certain sensations they have to other various reasons. For example, several hyperthyroidism symptoms, like tiredness, nervousness, troubled sleep and fast heartbeat, are easily explained by stressful work and tight deadlines.

However, if these persist for a long time, it is reasonable to consult with a endocrinologist and check your hormones. Phentermine is contraindicated in this health condition, so avoid taking it, if you suffer from overactive thyroid.

Anxiety or agitation

Since Phentermine belongs to the group of drugs that stimulate the central nervous system, it should not be used by people with a marked presence of any kind of CNS disorders, just like other drugs of this group.

Abuse or dependence on alcohol, drugs or narcotic substances

Since Phentermine itself is characterized by a high risk of dependence development, the manufacturer strongly advises it should not be used in people with a history of any addiction to substances that alter the consciousness, i.e. affect the CNS. Warning! High risk of abuse.

Pregnancy and breastfeeding

Many women suffer from PCOS and resort to various weight loss methods for two purposes: to get rid of this condition and get pregnant. It is very important to realize that Phentermine is contraindicated in pregnant women, because it can harm the unborn child.

Therefore, it is strongly advised to stop trying to conceive a child during Phentermine course. If you found out that you are pregnant and are taking Phentermine, you should immediately discontinue the drug and consult with your doctor.

The same thing applies to breastfeeding mothers. Phentermine does pass into the breast milk and brings along all its effects. You wouldn’t want your baby get a CNS stimulant and guess, how much damage you bring to the little body. Wait until you end breastfeeding or switch your baby to baby food before you begin using Phentermine.

Does Phentermine truly promote a fast weight loss?

Why people still keep buying and using Phentermine, despite various warnings? The answer is: because it does help people lose weight. Yes, it does. We have found numerous reports of people, who didn’t suffer from any serious side effects and managed to lose weight:

  • “ I instantly felt … surge of energy. I’m now 10 weeks in and lost over 15 kilograms”
  • “one week today and I have lost 4.5 kg!!!”
  • “So far I have lost 5.4 kg in my 14 days on this medication”

Does Phentermine work the same way for everyone?

It certainly doesn’t. Not a single drug can work the same way for every single person. In fact, not every person has the same response to one and the same drug. We found reports of people, whose body response to Phentermine didn’t result in a weight loss or appetite suppression at all:

  • “it didn’t seem to help with my appetite”
  • “it has zero effect on my appetite”

At the same time, people, whose body gave an adequate response to the appetite suppressing effect, reported of amazing weight loss and, at times, surges of energy, which helped them become more active and lively:

  • “I had to force myself to eat”
  • “It decreases my appetite and gives me the energy I need”
  • “extreme loss of appetite, I had extreme energy, I was very focus”

The conclusion is that while we all hope that Phentermine provides us only with lower appetite and increased energy, we can never be sure, how our body reacts to it and what we will get in the end. Not even your doctor can say for sure whether you will have any side effects or not, and when the appetite suppression gets on stage.

Are side effects really that bad?

Unfortunately, yes, there are side effects that are truly unpleasant and damaging at times. No one is guaranteed from having them. The main thing to remember is any time you feel like something’s wrong, you should consult with your doctor, and if that “wrong” is very bad, you should stop using the drug and call an ambulance. Just do it!

At the same time, Phentermine can cause mild side effects, which are quite common and usually pass within a couple of days. Since Phentermine is the active substance of Duromine, you can check out our poll on the most frequent side effects and vote, if you also have an experience of Phentermine (Duromine) use.

What is the best way to use Phentermine?

We discovered that there is no unique schedule for Phentermine administration. However, most people prefer taking Phentermine early in the morning. Some take it on an empty stomach, while others only tolerate it well if they eat something light along with the drug intake, something like yogurt, half an apple, etc.

The most frequent dosing regimen implies people having one Phentermine pill of the prescribed dosage in a day. However, this can be changed depending on the patient’s tolerability of the drug.

From multiple reviews, we found out that people adjust the dosing schedule in based on their feelings. Some find it sufficient to take Phentermine every other day, others can take it for two days and have a two-day break. Still, the most often method of administration remains one pill per day.

Did Phentermine stop working for me? What should I do?

From time to time, these questions appear here and there. We dug a little to see what might be the reason for such changes in effects and found out that: “Tolerance to the anorectic effect usually develops within a few weeks. If this occurs, Phentermine should be discontinued. The recommended dose should not be exceeded”.

Is that it? Just stop and forget about it? Humanity would still be in the Stone Age, if they weren’t trying to find solutions to everything that bothers them. Of course, Phentermine users are not the ones to give up just like that. Slowly, one by one, people were trying to kick start the effects again, and many of them succeeded.

How? They simply stop taking Phentermine for a day/two or more, and restart. Works most of times. However, there are two things to keep in mind at this point:

  1. DO NOT up the dose to get the effect. It is dangerous for your health.
  2. You can have different side effects every time you restart Phentermine.

Why am I not allowed to use Phentermine for more than 3 months? I have so much weight to lose!

With all these argues about Phentermine being an amphetamine or not, we should not forget that it is a very powerful drug that works with your central nervous system. The history of abuse of stimulant drugs is very rich in stories and these are mostly sad. No matter how much you want to lose all the extra weight at once, your health and sanity must be your top priority always.

Yes, the course should last no longer than 3 months. If you still have a lot of weight to lose, you should discuss with your doctor the possibility of going for a second course of Phentermine, which can only take place after a time interval that your doctor considers needed.

While you wait for the second course to begin, you should continue with healthy eating and exercising. Even if weight stops to come off as fast as it was reducing on Phentermine, it’s ok. You can work on bringing your skin in tone. Fast weight loss always affects our skin in a bad way. Use the break to help your skin adjust to your new size.

I used Phentermine a couple of years ago and lost a lot of weight. It doesn’t work now. Why?

Unfortunately, we also found a couple of such questions on the forum and among the user reviews on Phentermine, and we have to admit that there is no precise answer. We know for sure that Phentermine is never the same, even for the same person. Like we already mentioned, every time you restart using Phentermine, it differs from your previous experiences. Besides, tolerance is always a threat, and it can prevent you from getting any beneficial effects at all.

Should I use Phentermine to lose weight? Sounds so simple with great results.

Aside from the side effects, it does sound great and the weight loss results are mostly quite promising. However, if you read THOROUGHLY through the reviews and Phentermine success stories, you will surely notice people writing about the fact that they needed to change their whole life to get such great results.

This means that you should not hope on using Phentermine, lying on the couch and just watching the kilograms melt. Changes in everything:

  1. Eating
  2. Physical activity
  3. Drinking
  4. Sleeping

If you are ready to do these and keep to them for the rest of your life, you can try Phentermine as an aid to your weight loss program.

What changes should I make when I start using Phentermine?

All four aspects that we listed above are very important for a successful weight loss. We will just start in numerical order without hinting at higher importance of one or another aspect.


Not every obese person eats all day long and absorbs tons of fast food washing it all down with liters of soda. Some eat not more than once or twice a day, and their meals do contain foods that add up the weight, while others are devoted sweet tooths and can’t stay away from a piece of cake or a couple of chocolates a day.

When you start losing weight with Phentermine, it will help you fight your appetite and cravings for all the bad foods that make you gain weight or hinder your weight loss. You will be responsible to fuel your body with only good foods, which contain all the substances that our body needs for normal functioning:

  • proteins
  • fats
  • carbohydrates
  • fiber
  • vitamins
  • minerals
  • essential fatty/amino acids

If you deprive your body of any of these, your weight loss process might slow down or stop. Therefore, it is recommended using a vitamin and mineral complex while being on Phentermine course, and making up your daily menu of all the healthy foods, combined in small meals.

Basically, it is important to make your nutrition rich, balanced and regular. Some people find it easier to fit their menu into a certain caloric value or resort to weight loss diets that already provide a ready compiled menu, while others simply eat fresh healthy meals. Depends on your choice.

Physical activity

It is an endless circle:

people with excess weight don’t exercise because they feel lack of energy and, at times, embarrassed, to get in the gym or out in the street for a jog.
they gain more weight and even less energy

It goes on and on. Certainly, there do exist people, who can not exercise due to health condition. However, many of them need to lose weight to improve that very condition which doesn’t let them exercise. Another vicious cycle. Solutions?

Yes, people do find solutions for such situations. Those, who are not sporty at all, start with little things, like walking. They consistently increase the load and little by little add other types of exercises. Cardio loads alone will not provide you with a very fast weight loss.

If you want a quick and lasting result, introduce some weight trainings. They make your muscles grow, which means you will be burning more calories even at rest, because muscles need a lot of energy for their function. It doesn’t mean you need to get into the gym and act like a Hulk. Introduce a couple of exercises, which involve several groups of muscles at once. This can help you save time and work through your entire body.

Drinking water

Increased water consumption is important both for your successful weight loss and to help your body cope with Phentermine. Water helps our body get rid of waste and helps Phentermine to be better absorbed.


  • Drinking 1 liter of water a day might be insufficient hydration and lead to unpleasant events.
  • Increased water intake can help you alleviate such Phentermine side effects, like constipation, headaches, dry mouth.
  • Ask your doctor about the maximum amount of water you are allowed to have while on Phentermine, because excessive water consumption can make your body lose important minerals.


Without a doubt, sleep does affect the weight loss. Insufficient sleep results in weight gain so it is strongly advisable to sleep at least 7-8 hours during the night, if you want to reach a fast weight loss.

If you suffer from insomnia because of Phentermine, remember, it should alleviate by day 4-5 and you can ask your doctor for sleeping pills if it becomes unbearable.

Another thing that we discovered from multiple Phentermine users who were suffering from insomnia is that they stopped taking Phentermine and restarted in a couple of days. The second time was more successful, and the insomnia was less pronounced or didn’t bother them at all.

On our forum, you can find plenty of useful tips that can help you improve your sleep while on Phentermine.

Final thoughts about Phentermine use and weight loss with this appetite suppressant.

Our research took quite some time due to the fact that Phentermine has been used worldwide for a very long time and the amount of stories and feedbacks, as well as clinical studies on this drug, is huge.

If not for the side effects, we would definitely recommend this drug for weight loss, but we can’t just put them aside and tell you to rush to the pharmacy and get it. It is important that your weight loss process with Phentermine is monitored by a doctor, because the drug is very potent and unexpected. We hope that we managed to cover main points. If you still have any questions, feel free to ask them.