Arimistane 101: How To Use For PCT & Results Revealed

This Arimistane guide will teach you everything you need to know about using this aromatase inhibitor as a post-cycle therapy.

We will show you the optimal dosage, and what results from it you can expect. 

You have probably already heard of this compound and want to know: Does it really work? 

Well, if that is correct, I would highly recommend reading the complete guide. After you’re done, you will have all the information you need to decide if Arimistane is something for you.

What is Armistane?


Arimistane or Androsta-3 5-diene-7 17-dione is an aromatize inhibiting compound and is a DHEA analog. Supplement companies often sell it as a product that will reduce estradiol and is mainly used as a post-cycle therapy.

Only a few studies support that claim, but it’s a very promising compound.

Arimistane naturally occurs in the human body. In the 1970s, East German steroid chemists affiliated with the Research Center for Molecular Biology and Medicine produced Androsta-3 5-diene-7 17-dione in human urine. 

Later on, in the early ’90s, researchers from the Ohoku College of Pharmacy in Japan were looking for aromatase inhibitors(AIs). They found that Androsta-3 5-diene-7 17-dione was among the best AIs available. 

What are the uses of Arimistane?

These are three primary uses of Androsta-3 5-diene-7 17-dione:

  • Post Cycle Therapy
  • Anti Gynecomastia
  • Performance Enhancer

Most users use it while doing post-cycle therapy or on an anabolic steroid cycle to prevent, reduce, or revert gyno.

Arimistane estrogen

How To Use Arimistane As PCT

After a cycle of any suppressive compound like SARMs, Prohormone, or AAS, you will need a post-cycle therapy to recover your natural testosterone.

If you do not recover properly, you will have low energy, and libido, and potentially lose the muscle gains you just made during your cycle. 

After your cycle, you want to increase your testosterone levels and not your estrogen levels; too much estrogen could result in side effects like gyno. 

That’s where Androsta-3 5-diene-7 17-dione comes in place because it will block unnecessary estrogen and increase your natural testosterone.

It would be best if you took Arimistane as a PCT straight after you are done with your cycle for a period of 2-4 weeks, depending on how you feel. Some people require a cycle of 2 weeks, and some longer than 4. 

Most users take a dosage between 50-75mg daily for optimal results.

It’s not recommended to take it longer than 6 -8 weeks because your body also needs estrogen and low estrogen side effects are also no joke.

Most users did a cycle of LGD-4033(Ligandrol) or RAD-140 (Testolone). They both are known for their suppressive side effects. However, with a proper pct supplement, you will recover quickly.

People who did a legal steroids cycle will not need to run something like Arimistane.

Click here to buy Rebirth PCT, our recommended supplement containing Arimistane.

Does Arimistane Has Side-Effects?

There is limited research available on Androsta-3 5-diene-7 17-dione, let alone research with human trials and the safety of arimistane.

However, I have not found any negative reviews or experiences on the usage of this compound. Many users claim that it’s overall well tolerated, even on higher dosages. 

The general rule is not to go any higher than 100mg a day and start with a dosage of 25mg daily and work your way up.

While running Androsta-3 5-diene-7 17-dione, I never experienced any negative side effects.

I’ve just done it multiple times while doing a PCT, and it gave me the desired results.

What is the best Arimistane Supplement?

We from Nectac used and reviewed many supplements containing arimistane and concluded that Rebirth PCT by Huge Supplements is the best Arimistane supplement.

Rebirth PCT is designed as a SARMs PCT and is perfect for anyone that needs to do post-cycle therapy.

Rebirth PCT Arimistane supplement

It contains a blend of herbs and vitamins that will boost your natural testosterone levels and also contains 75mg of Arimistane, which is perfect for a post-cycle therapy.

If you are looking for an Androsta-3 5-diene-7 17-dione supplement without other ingredients, I would recommend something like Arimistane Plus.

How does Arimistane compare to Arimidex

Anastrozole or Arimidex is also an Aromasin inhibitor, just like arimistane. The most significant difference between Arimidex and Androsta-3 5-diene-7 17-dione is that Arimidex is way stronger.

Arimidex is designed to treat postmenopausal women with breast cancer and is actually only available on prescription. 

Arimidex is more potent and would also be more aggressive in its usage. This can come with more side effects. 

I would not recommend using Arimidex if you could get the same effects with Arimistane. Don’t get me wrong, Arimidex also works better but has a downside.

The Optimal Arimistane Dosage

As mentioned earlier, it’s crucial to start with a low dose of Arimistane and then slowly work your way up.

If you start with a very high dose, like 100mg, you could crash your estrogen. 

And you definitely don’t want to crash your estrogen. Your body needs estrogen to have a healthy libido and brain function.

That’s why I recommend starting with 25mg daily and slowly increasing it to 50 or 75mg if you do not get the desired effects.

In my experience, 50 – 75mg of arimistane a day is the best dosage.


Arimistane is an aromatase inhibitor that will lower your estrogen during a cycle and help you recover faster in a PCT. Some users use it to combat gyno while on a cycle. 

There is not much research available on the long-term effects. However, it’s overall well-tolerated. 

If you are going to do a pct with Androsta-3 5-diene-7 17-dione, I would highly recommend using Rebirth PCT because it’s the best over counter pct available.

Arimistane Supplement
Rebirth PCT Arimistane supplement

Product Name: Rebirth PCT

Product Description: Over the counter post cycle therapy supplement by Huge Supplements.

Brand: Huge Supplements

Offer price: 69.95

Currency: USD

Availability: InStock

  • Lower Estrogen
  • Increase Testosterone
  • Boost Energy
  • Power Output

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