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Primobolan Profile
Methenolone + acetate ether)
Molecular Weight of Base: 302.4558
Molecular Weight of Acetate Ester: 60.0524
Formula: C20H30O2
Melting temperature:
Effective dose: (men) 50-150 mg / day; (Women) 25-75 mg / day
Active life: 4-6 hours
Detection time: 4-5 weeks
Anabolic / Androgenic Ratio (Range): 88: 44-57

Primobolan or Methenolone Acetate is an oral anabolic steroid that is slightly unique compared to many oral anabolic steroids. Before we go any further, it is important to distinguish between Primobolan and Primobolan Depot. Primobolan Depot is an injectable version of the hormone that is attached to a large/long ester of enanthate. Primobolan consists of the same active steroid hormone as Methenolone; however, it is attached to a small/short ester of acetate and is intended for oral administration.

The hormone methenolone was first released in 1962 by Squibb in both oral acetate and injectable enanthate form. Both hormonal compounds were called Nibal, Nibal, and Nibal Depot, but were very short-lived products. In the mid-1960s, the giant German pharmaceutical company Schering obtained the rights to the hormone Methenolone, introducing it under the name Primobolan. Since then, Primobolan has been known as the European anabolic steroid. It has never been manufactured in the United States since Squibb.

An interesting note regarding the methenolone acetate compound, although primarily an oral steroid, Schering once produced it as an injectable drug. However, the injectable version was discontinued in 1993. Any injectable form of acetate will be strictly detectable in clandestine laboratories, but even then it will be rare. Most clandestine laboratories making the acetate version will do it in oral form. Many, however, simply stick to the large injection depot version.

Features of Primobolan

Methenolone is a derivative of dihydrotestosterone (DHT), or more specifically, a structurally altered form of DHT. The double bond on the first and second carbons is added to the DHT hormone, which in turn significantly increases the anabolic nature of the hormone. It also carries an added 1-methyl group that protects it from liver damage. The addition of acetate ester further protects it from liver metabolism.

As an oral steroid, Primobolan is one of the few oral steroids that is not a C17 alpha-alkylated (C17-aa) steroid. The lack of a standard C17-aa structure also means that oral Primobolan is not liver toxic. However, while this is a bonus, most will find Primobolan oral as a relatively mild steroid or even a weekly steroid compared to many others in terms of performance enhancement. Men will not have the same level of anabolic activity as many anabolic steroids. Make no mistake, Primobolan has its place in performance, but most men will find the Depot version more appropriate. As far as women are concerned, this gentleness makes them, in part, a fantastic choice.


Primobolan is sometimes used to treat muscle wasting conditions; however, usually only in mild cases or when increased immunity is an advantage. This steroid is not going to gain mass like Anadrol or Deca Durabolin, and for most men, it will not be particularly helpful in the off-season weight gain cycle. However, we can make an exception for women. Women are much more sensitive to anabolic steroids, and a small amount of mild anabolic steroids can make a big difference. Equally important, most women don’t aim to gain 30 pounds overnight. Mild to moderate weight gain can often transform on its own. Keeping in mind its gentle nature, most men who use this steroid for true off-season will be disappointed.

Primobolan will really shine like a cutting steroid. To lose fat, we must burn more calories than we consume. While absolutely necessary, it also puts our lean muscle mass at great risk. In fact, even if the weight loss diet is ideally planned, it will lead to some loss of muscle tissue unless an anabolic protector is applied. Even with this protection, little tissue loss can occur, which should tell you how important an anabolic agent can be. The key to a successful diet is not just to lose weight, but to get rid of fat while maintaining muscle mass; if these goals are not met, your diet has failed. With a properly planned diet, Primobolan will help you achieve this goal. It has also been shown to have fairly good conditioning effects. Those who use Primo often seem to be tougher and more defined.

Possible Side Effects

Side effects of Primobolan can include cholesterol problems, especially suppression or lowering of HDL cholesterol. It can also include an increase in LDL cholesterol. Primo’s effect on cholesterol will be stronger than testosterone. It will also be stronger than the hormones nandrolone and trenbolone. However, it should be much less than most oral steroids. It is possible to maintain healthy cholesterol levels with this steroid, but it is important that you put in a little effort. Make sure your diet is cholesterol-friendly, high in omega fatty acids, and low in saturated fats and simple sugars. It’s also important to ensure that you include a lot of cardiovascular activities in your routine. Since most of them will use Primobolan during their cutting cycle, this shouldn’t be too difficult.


The side effects of Primobolan are not estrogenic. The hormone methenolone does not aromatize and does not have a progestin nature. This makes side effects such as gynecomastia and water retention impossible when taking this steroid. The side effects of Primobolan also rarely include problems with blood pressure. High blood pressure is most often associated with excess water retention, which again is not possible with Primo. Thanks to the use of Primobolan, there is no need to take anti-estrogen drugs. However, it may still be needed if estrogenic steroids are included in the stack.


Although it is a mild steroid, the side effects of Primobolan can include severe adverse androgenic reactions. Androgenic side effects include acne, accelerated hair loss in individuals prone to male pattern baldness, and body hair growth. Very few should have acne problems unless they are very sensitive to acne, to begin with. Baldness, however, is another matter entirely. Unless you are prone to male pattern baldness, there is no risk of hair loss. If you are predisposed, Primo is known to speed up the process significantly for many men. It’s also important to note that 5-alpha reductase inhibitors like finasteride, which are often used to combat androgenic side effects, won’t have much of an effect here. 5-alpha reductase inhibitors are used to suppress the conversion of testosterone to DHT, which is triggered by a decrease in testosterone levels to DHT through interaction with the 5-alpha reductase enzyme. Primobolan is not metabolized by the 5-alpha reductase enzyme, there is no reduction to be inhibited, it is already DHT that causes a very weak effect of the associated inhibitors.

Although it is mild in nature, the androgenic nature of Primobolan is strong enough to cause virilization symptoms in women. Such effects can include growth of body hair, deepening of the vocal cords, and enlargement of the clitoris. Although it is possible, such effects are highly dependent on individual sensitivity. Most women will be able to avoid virilization by taking supplements responsibly. This will mean keeping the total dose and duration of use in the proper range. See the section “Primobolan Administration”. Regardless of the dose, it is strongly recommended to discontinue use if virilization symptoms appear. If you stop taking it when symptoms appear, they will go away quickly. If symptoms appear, are ignored, and persist, they can become irreversible.


Primobolan has little or no effect on blood pressure in most healthy adults, unless an underlying problem exists. While high blood pressure is unlikely, it will always be helpful to keep an eye on it.


All anabolic steroids suppress natural testosterone production. However, the rate of suppression often varies greatly from one steroid to the next. Although it suppresses natural testosterone production, the rate of suppression of Primobolan is much less significant than that of many anabolic steroids. Therapeutically, it is actually possible to keep the overall suppression rate below 50%. This may be low enough to prevent some of them from falling to a low state despite the decline. However, there will be a separate story about the doses of the performance level. Dramatic suppression is almost guaranteed by such doses, which makes the inclusion of exogenous testosterone extremely important. Men who lack exogenous testosterone are more likely to end up with low testosterone levels. Not only does it carry many possible unpleasant symptoms, but it is also extremely unhealthy. Women, despite the need for testosterone, do not require exogenous therapy when using Primobolan.

After the use of Primo and all anabolic steroids has come to an end, natural testosterone production will resume. You will find that this is one of the easiest steroids to get rid of when it comes to testosterone production. Most men are advised to use a Post Cycle Therapy (PCT) plan after discontinuation. This will speed up the recovery process. However, by itself, it will not bring you back to normal. This will take time. However, a PCT plan will ensure that you have enough testosterone for your body to function properly, while your levels continue to rise naturally. For those who do not implement the PCT cycle, although they may recover, it will take much longer. There is really no reason to leave the PCT process if you intend not to participate in the program for a decent amount of time.

An important note about natural testosterone recovery. Natural recovery suggests that there was no previous condition with low testosterone levels. This also suggests that there has been no major damage to the hypothalamus-pituitary-testicular (HPTA) axis due to inappropriate steroid supplementation practices.


Oral Primobolan is not considered a hepatotoxic anabolic steroid. There is no evidence to support an increase in hepatic stress or liver damage. In his series Anabolics, William Llewellyn notes that there was one report of an elderly man who suffered from liver toxicity, failure, and death. However, this is the only recorded use of this steroid in more than 50 years. For this reason, hepatotoxicity cannot be completely ruled out, but this is unlikely.

Dosage and usage

While this has been successful in women’s treatment plans, Schering has not released a standardized dosage guideline for women. According to experts, the standard dosage range of Primobolan for women is 25-50 mg per day. Most women should tolerate this dose reasonably well. However, most women will find that a lower Primo dose along with an anabolic steroid like Anavar is the best plan. If Anavar or another anabolic steroid is added you will want to keep Primo low or you will increase the chances of virilization. Regardless of the set, the first cycle of Primobolan should start at 25 mg per day and no more. General use should not exceed 6 weeks. Most will find it ideal between 4 and 6 weeks.

Availability of Primobolan

Oral Primobolan is not one of the simplest anabolic steroids. If you want to use the hormone methenolone, it will be much easier for you to get the injectable version of enanthate. It will be extremely difficult for most people to find human or pharmaceutical-grade oral Primo. Very few providers will have access to the hormone. You will find more versions for underground labs, but again, the Depot version will be much more common. Since the injected version is much more efficient, it should always be your first choice in terms of performance if both versions are available.


Primobolan is a very useful steroid that should be treated as part of a stack in a cutting cycle. It is not a mainstream steroid for men, but rather an anabolic steroid that needs to be added to an already well-planned set. While it is not a foundational steroid for men, it can definitely be a mainstay for women. In any case, man or woman, although Oral Primobolan for sale on Alaska Center for Natural Medicine website has its place, will be most satisfied with injectable forms of methenolone.

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