Everything You Needed To Know About Arimistane

Introduction to Arimistane

Arimistane is one of the most popular pro hormones at the moment. It has been the staple product used in countless cycles as well as PCTs. What makes Arimistane truly stand out from the crowd is the fact that it’s the most powerful aromatase inhibitor, which means that it can effectively lower estrogen levels and is in that sense comparable to Nolvadex and Clomid. It also provides a good testosterone boost, which is why it is sometimes used in pro hormone stacks or alone to raise testosterone levels in order to build muscle and strength, increase libido, lose fat and more. In this article, I will give you all the information you need to know about Arimistane and how to use it safely and effectively.

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First of all, it is good to know the major difference between legal prohormones like Arimistane and anabolic steroids. Prohormones do not actually add synthetic testosterone to the bloodstream, they actually raise the levels of natural testosterone. This action happens when the prohormone activates an enzyme within the liver that is responsible for increasing testosterone production. Raised testosterone in return has the benefit of generating more muscle mass, strength and improving overall physical performance. And when you have a lot of free testosterone circulating in your body, your DHT (Dihydrotestosterone) levels increase as well. DHT is responsible for amplifying the effects of testosterone, and it increases with the elevation of natural testosterone.

So taking Arimistane for its testosterone boosting properties is certainly logical and beneficial. However, anabolic steroids are usually used more for this purpose than prohormones such as Arimistane. Their long-term use can lead to potential side effects like gynecomastia, high blood pressure, water retention, kidney problems and more, especially if high doses are taken. Also, let’s not forget the suppression of natural testosterone. Great gains come at a great price. Luckily, Arimistane is the most potent anti-estrogen on the market. All of these symptoms are associated with high estrogen levels, which happen due to high androgenic ratio of most steroids. When testosterone increases, so does estrogen. The only way to tackle this issue is by taking anti-estrogens like Arimistane. The same applies both while doing a cycle, and especially during PCT (post cycle therapy).

Arimistane also has an excellent effect on cortisol levels. Cortisol is a hormone produced in the adrenal glands, and in an elevated state it can cause stress, lethargy, suppress the immune system, eat away at muscle, and store excess fat. But the worse symptoms happen if cortisol is elevated for a long time. This causes allergies and inflammation in the body, which can destroy one’s digestive tract and respiratory organs. It is a wise saying that „stress is the number one killer“. And cortisol is the product and creator of stress.

But not only mental stress is the issue. Cortisol also rises after a heavy workout. This is why natural lifters are always told not to follow training programs of professional bodybuilders who use steroids. It’s because their body is not able to reap the benefits as the cortisol levels rise far sooner than at people who have more testosterone. Well, Arimistane is beneficial because it can in fact inhibit cortisol and keep it within a normal range, which makes it an excellent supplement for athletes looking to increase their workout length and frequency.


Post cycle therapy is necessary after doing most steroid or prohormone cycle. What happens after a few weeks, especially a few months of being on a cycle is that the natural testosterone in the body becomes suppressed. At the same time estrogen levels shoot up because the body is always trying to be in a homeostasis, and with the increase in test while on cycle comes elevated estrogen. This is especially true with steroids such as Dianabol, Anadrol and Depo-Testosterone, which have considerable androgenic properties.

There are a few dangers of having lowered testosterone after a cycle. The most obvious one is muscle loss. The muscle and strength gains that were accomplished during the cycle will evaporate if there is no testosterone to sustain them in the long run. Some other complications involve low libido, mood swings, depression and tiredness. High estrogen levels can add a new complex layer of side effects such as gynecomastia, bloating, mental problems and more. Another reason to do a PCT is to prevent hepatoxicity (liver strain or damage) from occuring while these hormonal imbalances are in place.

So how do we do a PCT? Well, there are a few drugs that can be of use in this instance: Arimistan, Nolvadex and Clomid

We’ll focus on Arimistane at the moment, as it’s actually legal to buy without prescription and it’s also the most powerful anti-estrogen and testosterone booster on the market, as can be seen from this scientific study where three of the most potent aromatase inhibitors were compared. So it’s not strange or overexaggerated when it’s sometimes called by its users a „suicide aromatase inhibitor“ because of its potency. Aromatase is also called estrogen synthase, because it’s the main enzyme necessary to produce estrogen. So an Aromatase Inhibitor deals with the root problem of excess estrogen production by actually suppressing this overworked enzyme.

Some bodybuilders like to combine Arimistane with other PCT drugs such as Nolvadex and Clomid, as they are also able to tackle estrogen and increase natural testosterone production. It really depends on the preference of the individual, but in most cases Arimistane is powerful enough to be used alone regardless of the previous cycle.


The fact that it carries suicide aromatase inhibitor title doesn’t mean that Arimistane is dangerous to use. If it were dangerous it would be illegal by now. Arimistane doesn’t shut off estrogen production completely, it simply lowers it enough in order for it not to cause trouble while your testosterone returns back to normal.

Estrogen production can be drastically lowered for an extended period of time, but it cannot be permanently shut off, no matter what we do. Our physiology always tries to produce a proper amount of both sex hormones depending on our gender. It should be mentioned that having low estrogen can have similar side effects to having low testosterone, mainly mood swings, low libido and joint issues. So we shouldn’t view these two hormones as antagonistic in nature, but rather as two parts of our physiology that have to be in balance in order to work properly.

Very few side effects have been reported from using Arimistane. This is especially true if it is used in moderate doses (more on that later on in this article). The only way that Arimistane can produce negative side effects, such as liver strain, is when large doses are used for a prolonged period of time. But this goes without saying with any drug, dietary supplement, or anything else for that matter.

So let’s see what is the best way to use Arimistane to get the desired effects.


Some weightlifters and bodybuilders use Arimistane during their cycle to control the estrogen levels, but it works best when used during Post Cycle Therapy. In both cases it can be used alone or with other supplements.

When taken by itself in order to suppress estrogen, it can be used for up to 6 weeks. The dosages themselves may vary depending on the strength of the product, which again, depends on the brand you’ve purchased from. But usually, 100-200 mg daily is a moderate dose that can provide great results.

When it’s taken with other pct drugs such as Nolvadex or Clomid, or when taken intra-cycle, doses and the way of use are a bit different:

First week: 75-100 mg per day

Second and third week: 50-75 mg per day

Fourth and fifth week: 25-50 mg per day

Arimistane is not considered to be a base prohormone, which means that it should be used as an addition to other prohormones such as Trenavar in a stack which is designed to promote muscle, strength and endurance gains.

It can be taken for an additional one week, but it’s up to the individual to see whether it’s necessary or not. Just like any other supplement or pct agent, Arimistane use should be gauged depending on our sense of what our body requires at the given moment. Taking a recommended dosage is always a good thing, but it should be considered more as an estimate, rather than a strict rule.



Arimistane is a powerful Aromatase Inhibitor, estrogen reducer, and testosterone booster. These are the qualities that it shares with many prohormones on the market. What makes Arimistane stand out is its potency, which is much higher than that of similar products.

It is also a versatile prohormone that can be used alone, or in a stack with other drugs and pro hormones to raise physical performance and improve one’s physique. It is also widely used by older men as their natural testosterone levels decline from 35 years of age onwards.  It’s most common use is for Post Cycle Therapy, whether used alone or together with Nolvadex or Clomid.

Arimistane has basically zero side effects when taken in recommended doses for 4-6 weeks. Longer than that is usually not necessary as that is the optimum amount of time in which it can influence the hormonal levels in a positive manner.

Due to its popularity, effectiveness, wide distribution and legal status, there are plenty of reasons to try Arimistane.

So if you’re interested in staying natural while at the same time gaining high-quality muscle mass, increasing your strength in the gym, being able to lift more, and shedding excess body fat, Arimistane is the prohormone supplement you’ve been looking for.


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