Fastin vs Phentermine – Which one is the better option?

  • By: jacob foxx
  • Date: March 28, 2023
Fastin vs Phentermine

When it comes to serious weight-loss efforts, a doctor may recommend considering weight-loss pills.

Two popular options that have been used in the past are Fastin and phentermine. The FDA has approved phentermine as an appetite suppressant. However, it is a controlled substance and not easy to get.

On the other hand, the original Fastin diet pills were a type of phentermine but have since been discontinued.

Why were Fastin diet pills discontinued, and why are some of these products still being offered today? Are these new Fastin diet pills similar to the original ones or are they manufactured differently?

If phentermine requires a prescription, do the new Fastin weight-loss pills require one as well?

You may receive answers to these questions and more regarding Fastin vs. phentermine, in this article we produced particularly for you.

Original Fastin Diet vs. Phentermine

What is Fastin?

Fastin is a type of diet pill that is primarily used to support weight loss efforts through caloric restriction.

Fastin’s main ingredient is phentermine hydrochloride, which helps to reduce hunger and make people feel full. This makes them eat fewer calories.

One capsule of Fastin (30 mg) is typically recommended per day, taken two hours after breakfast.

However, it is important to note that Fastin should not be taken at night or in the late evening due to potential side effects, such as insomnia.

Along with its weight loss benefits, Fastin can also have potential side effects, including changes in sex drive, dizziness, dry mouth, elevated blood pressure, a fast heart rate, and more.

What is Phentermine?

Phentermine HCl has been a popular appetite suppressant for decades, particularly in the United States, where it is available by prescription only.

It is made up of the active ingredient phentermine, combined with various inactive ingredients. Phentermine works by stimulating the brain to lower hunger and cravings, but it does not address fat burning.

Like any medication, taking phentermine carries possible risks, such as diarrhea, headaches, heart palpitations, high blood pressure, insomnia, and other side effects.

For this reason, both Fastin (original) and phentermine are classified as schedule II drugs, as they have the potential for recreational abuse.

People who already have health problems or who are pregnant should not take phentermine because it can have dangerous side effects.

Major Differences

When it comes to weight loss medications, Phentermine and Fastin are two names that often come up.

However, there are major differences between the two. While Phentermine can still be purchased as a generic or branded medication, Fastin ceased production over two decades ago.

Furthermore, Phentermine is available in various dosages ranging from 8 mg to 37.5 mg, while Fastin had a standard 30 mg dosage.

It’s important to note these distinctions when considering which medication may be best for your weight loss journey.

Phentermine vs. New Fastin Diet Pills

As an innovative company in the diet pill market, Hi-Tech Pharmaceuticals has introduced Fastin, which is marketed as an herbal stimulant that can help people lose weight.

By using phenylethylamine, a powerful natural stimulant, Fastin is able to boost neurotransmitters in the brain, which increases dopamine, norepinephrine, acetylcholine, and serotonin and improves alertness and mood.

Unlike phentermine-based diet pills, Fastin requires only 8 weeks of recommended use instead of the usual 12-week period, making it a safer option for weight loss.

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Furthermore, Fastin is readily available to purchase online in two forms: Fastin and Fastin XR. If you’re looking to explore dietary supplements that may support your weight loss goals, then Fastin may be something worth investigating.

Difference From Phentermine

There is a significant difference between Fastin pills and Phentermine. Fastin pills fall under the category of food products and are not subject to FDA regulation.

So, they don’t have to go through the strict testing that drugs like Phentermine do.

On the other hand, Phentermine is only available with a controlled prescription and is FDA-approved for use as a weight-loss and obesity drug.

Many people prefer Phentermine since they can trust the ingredients in the pill, which is essential for their well-being.

It’s important to buy dietary supplements from reputable companies, and Phentermine is a good choice because it has a long history of being safe.

What’s the distinction between Fastin and Fastin XR?


Fastin, a diet pill whose generic name is phenylethylamine HCl, has been gaining immense popularity recently due to its effective weight loss properties.

Fastin’s unique blend of ingredients, collectively called “Thermo-Rx” is designed to help suppress appetite and increase metabolism, ultimately aiding in weight loss.

The ingredients in Fastin include phenylethylamine HCl, methyl synephrine HCl, theobromine anhydrous, 2-aminoisoheptane HCl, synephrine HCl, N-methyl-B-phenylethylamine HCl, Yohimbine HCl, and a considerable amount of caffeine (200 mg).

A reputable company makes fastin, and it has undergone quality and efficacy testing.

Fastin XR

Fastin XR is a powerful weight loss supplement that is designed to help individuals reach their fitness goals.

This supplement contains identical stimulants to Fastin, along with Senegalia berlandieri and an additional 150mg of caffeine.

However, what sets Fastin XR apart is the presence of 5-Methoxytryptamine HCl (5-MOT), which supports serotonin activity and helps individuals feel fuller.

With a higher dose of 425 mg compared to Fastin’s 245 mg, Fastin XR is a great option for those looking for an extra boost in their weight loss journey.

How Should You Use Fastin XR?

Fastin XR is a popular weight loss supplement that provides an effective way to shed unwanted pounds. It is essential to use this product correctly to achieve the best results.

Fortunately, taking Fastin XR is simple. The ideal dose is 1-2 tablets/capsules in the morning, followed by an additional tablet after lunch.

This dosage regimen guarantees that you will receive the maximum benefits of Fastin XR without exceeding the recommended maximum dose of 4 tablets per day.

Fastin and Fastin XR are taken in the same way, so if you are an existing Fastin user, there is no need to adjust your dosage. 

Is Fasting Beneficial for Weight Loss?

Intermittent fasting has gained popularity in recent years as a weight loss strategy. But is it truly effective?

According to Hi-Tech Pharmaceuticals, Fastin, a weight loss supplement with eight active ingredients, including caffeine, may provide additional benefits during a fast.

These ingredients can help curb your appetite, give you more energy, and speed up thermogenesis, all of which can help you lose weight faster.

Which Diet Pill Is Better: Fastin or Phentermine?

When it comes to choosing a diet pill, the decision ultimately boils down to personal needs and preferences.

Both Fastin and Phentermine are popular options for those looking to shed excess pounds, but they differ in terms of accessibility and regulation.

Fastin, which is available over the counter and is not a controlled substance, maybe a more convenient choice for individuals who prefer to avoid doctor visits.

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On the other hand, Phentermine, an FDA-approved medication, requires a prescription and regular monitoring by a healthcare provider.

What is our suggestion?

For those seeking a safe weight loss supplement, our suggestion would be PhenQ. Made from all-natural ingredients, PhenQ can work to help burn fat without the dangerous stimulants found in other products like Fastin and phentermine.

While those products are only recommended for use for a few weeks due to their effect on the brain, PhenQ can be taken for as long as necessary.

The brand claims no adverse side effects have been reported, making it a safe choice for those seeking sustainable weight loss.

PhenQ also helps with maintaining a healthy weight, making it a versatile option for those on their weight loss journey.

No prescription is needed to purchase this product, making it easy and accessible for all looking to improve their health.

click to find out more about PhenQ

What’s In PhenQ?

PhenQ is a dietary supplement that utilizes a unique blend of alpha-lipoic acid and cystine to help users achieve natural weight loss.

In addition to these patented ingredients, the supplement also includes caffeine, L-carnitine fumarate, chromium picolinate, Capsimax powder, and Nopal cactus fiber to boost metabolism and promote slimming.

Unlike some weight loss products that may require a prescription, PhenQ comprises entirely natural and safe ingredients, making it a viable option for both vegetarians and vegans.

Widely known in the wellness industry, PhenQ can be a great addition to any weight loss regimen.


When it comes to weight loss, many people turn to prescription medications like Fastin or Phentermine to help them manage their appetite and shed unwanted pounds.

Both options work to treat obesity, but they have a lot of possible side effects that must be carefully thought through.

However, if you’re looking for a safe and effective alternative that doesn’t require a prescription, you might consider PhenQ.

This supplement has been shown to help people reach their weight loss goals without the risky side effects that come with prescription medications.

And with a money-back guarantee, you can rest assured that you’re making a smart investment in your health. As always, be sure to consult your doctor before starting any new diet or exercise program to ensure your safety and well-being.

I'm Jacob Foxx, a proud native of the outskirts of Chicago, Illinois. I was enamored with the expansive Star Trek universe and its promise of cutting-edge technology and space travel from a young age. This early fascination with science fiction sparked my imagination and laid the foundation for my writing career. Alongside my love for the cosmos, I developed a passion for fitness in my formative years.

This dual interest in the world of tomorrow and the pursuit of physical health has greatly informed my writing, allowing me to explore themes of human potential and the future of our species. As an author, I strive to blend these passions into compelling narratives that inspire readers to dream and to push their own boundaries.

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