Skip to content Deca Durabolin (Nandrolone Decanoate)
Introduction
Deca Durabolin, a popular anabolic steroid, contains the hormone Nandrolone and is coupled with the Decanoate ester. Organon introduced the Nandrolone hormone in 1960, branding it as Deca Durabolin in 1962. Despite the existence of various Nandrolone Decanoate versions, Deca Durabolin continues to be highly recognized. Organon’s Durabolin came before it, featuring Nandrolone Phenylpropionate, which acts faster but has a shorter duration. While Phenylpropionate forms are favored, Deca Durabolin dominates the Nandrolone market.
Among performance-enhancing athletes, Deca Durabolin is widely used, prized for its ability to build off-season mass and its therapeutic benefits. The Nandrolone hormone offers significant therapeutic advantages, making it a vital steroid in medical practice. However, its use in the U.S. has been restricted due to ongoing controversy surrounding anabolic steroids. Nevertheless, Deca Durabolin remains popular outside the U.S., especially in therapeutic treatment plans addressing various medical conditions.
The reasons why Deca Durabolin is so popular
Deca Durabolin, officially classified as a 19-nortestosterone (19-nor) anabolic androgenic steroid, owes its unique structure to the absence of a carbon atom at the 19th position, differentiating it from the testosterone hormone. Attached to the large Decanoate ester, Deca Durabolin’s release of hormone activity is significantly slowed, sparing users from frequent injections. Following injection, a surge of Nandrolone is released in the body within 24-48 hours, gradually continuing over 2-3 weeks.
With a slightly higher anabolic rating than testosterone but significantly lower androgenic activity, Deca Durabolin transforms into dihydronandrolone (DHN) instead of dihydrotestosterone (DHT), making it milder and well-tolerated. Although it aromatizes at a fraction of the rate of testosterone, its strong progestin nature contributes to potential side effects.
Deca Durabolin enhances protein synthesis, inhibits glucocorticoid hormones, and boosts IGF-1 output, alongside superior nitrogen retention compared to many steroids, crucial for maintaining an anabolic state. Its exceptional traits lie in increasing bone mineral content and collagen synthesis, providing joint relief and therapeutic benefits.
Renowned for treating muscle wasting diseases, geriatric weakness, anemia, breast cancer, severe burns, ulcers, pituitary deficient dwarfism, and development retardation, Deca Durabolin excels in treating osteoporosis due to its bone mineral content and collagen synthesis enhancements. In the U.S., it’s primarily used for HIV and anemia treatment, but its potential for therapeutic rejuvenation is gaining recognition among physicians, suggesting positive anti-aging benefits at low doses.
What Deca Durabolin does
Deca Durabolin’s effects make it one of the most advantageous anabolic steroids for any man. With an exceptionally high level of toleration, it stands out as one of the best options for promoting lean muscle mass and offering significant therapeutic benefits. While we’ve covered its effects in the profile page, let’s delve deeper into what you can expect from using this steroid.
Deca Durabolin and mass gains
Deca Durabolin can significantly promote lean muscle mass growth, but it’s not a miracle hormone; proper nutrition is crucial for fueling this growth. To grow, you must consume excess calories, though overeating can lead to unwanted body fat accumulation. Finding the right caloric intake varies from person to person, but once established, Deca Durabolin enhances tissue growth by boosting protein synthesis and IGF-1 production. Additionally, users may experience less off-season body fat gain due to improved training and hormonal levels.
While Deca Durabolin’s mass-promoting effects are potent, they aren’t immediate. Unlike fast-acting steroids, Deca Durabolin’s gains are gradual and may not result in as significant a total weight increase. However, weight gain alone isn’t indicative of progress, as some steroids primarily cause water retention. Deca Durabolin can also lead to water retention, but it’s manageable with anti-estrogens and a balanced diet.
Blaming the steroid for excessive water retention often overlooks the role of diet; overeating, especially carbs, can exacerbate water retention, whether using steroids or not. By controlling diet, estrogen, and maintaining consistent training, Deca Durabolin’s effects can yield high-quality muscle growth that’s easier to maintain compared to other steroids.
Deca Durabolin is also good for cutting
Deca Durabolin’s effects during the cutting phase can prove highly advantageous. While it may not deliver pronounced conditioning effects, it still holds value in a cutting cycle. Thanks to its ability to promote nitrogen retention, it excels at preserving lean tissue, essential for minimizing muscle loss during calorie deficit. Even with a well-planned diet, without an anabolic protectant, some lean tissue loss is inevitable. Successful dieting hinges on losing body fat while retaining as much lean tissue as possible, a feat Deca Durabolin facilitates. Yet, its benefits extend beyond tissue preservation; its therapeutic advantages are considerable, a topic we’ll delve into next.
The positive health effects of Deca Durabolin
Regardless of your goals, Deca Durabolin offers impressive therapeutic benefits. While many steroids support collagen synthesis and bone mineral content, Nandrolone takes it up a notch, providing significant relief for joint pain. It also speeds up overall recovery, aiding in the healing of ligaments and tendons, as backed by research.
It’s important to understand that Deca Durabolin’s therapeutic effects aren’t just masking symptoms like painkillers do; they genuinely promote healing and relief. Whether you’re bulking, cutting, or not following a specific regimen, athletes find Deca Durabolin’s therapeutic properties invaluable. Even at low doses, this steroid can offer substantial relief.
Deca Durabolin and endurance sports
Deca Durabolin’s impact on endurance, particularly muscular endurance, is highly significant. Users experience reduced fatigue and slower muscle wear during strenuous activities. While the Nandrolone hormone isn’t renowned for directly increasing strength, individuals can maintain higher strength levels for longer periods with its use. This is partly attributed to Deca Durabolin’s effect on red blood cells, leading to increased blood oxygenation. Combined with enhanced protein synthesis, nitrogen retention, IGF-1 production, and decreased glucocorticoid hormones, Deca Durabolin further enhances muscular endurance.
Does Deca Durabolin become less effective the more you use it?
Some often assume certain steroids are only suitable for veterans, while others are only suitable for new steroid users. Some also assume that if a steroid has been used several times in numerous previous cycles it should not be used again if results are to be obtained, and if it is used again it must be used at a higher dose. When looking at the effects of Deca Durabolin we can assure you all of these supposed facts are nothing but rumors and quite simply ridiculous.
Deca Durabolin is well-suited for all levels of experience, and it will work just as well each and every time. While some may desire higher doses later on, higher doses are not necessary to obtain results. If 400mg per week provided growth, it will also provide growth the next time it is used.
Further, if the steroid has been used in numerous cycles, the effects of Deca Durabolin will not wane in later cycles due to previous use. Granted, as you grow, the more you grow, the more muscle mass you possess the harder it becomes to gain more lean mass. This does not, however, mean the effects of Deca Durabolin have stopped working. When growth becomes harder to obtain, you will need to adjust your total steroid doses, and you will more than likely need more calories but this does not mean you need to change
Side Effects of Deca Durabolin
Deca Durabolin (Nandrolone Decanoate) may come with potential side effects, but they’re often misunderstood. Among healthy adult men, the Nandrolone hormone is well-tolerated, ranking high on the list of beneficial hormones alongside testosterone. When used properly, its side effects are easily avoidable. Understanding the Nandrolone hormone is key to discerning which steroidal side effects are possible, which are not, and how to mitigate those that are.
One commonly cited side effect of Deca Durabolin is its impact on libido and erectile function. Like most anabolic steroids, Deca Durabolin suppresses natural testosterone production, albeit to an extreme degree. This has led to the term “Deca Dick” being commonly used, often without a complete understanding of the issue. While erectile dysfunction is a possibility, it’s also easily preventable. It’s worth noting that erectile dysfunction can occur with the use of almost any anabolic steroid. Therefore, a comprehensive understanding of hormone function is crucial to avoiding this and other potential side effects of Deca Durabolin.
More Side Effects of Deca Durabolin
The potential side effects of Deca Durabolin primarily revolve around its moderate estrogenic activity, progestin nature, testosterone suppression, and cardiovascular effects. Androgenic side effects are possible but carry a low probability.
Deca Durabolin, like all Nandrolone hormones, is a 19-nortestosterone (19-nor) anabolic androgenic steroid, making it a progestin. Progesterone’s activation of mammary tissue can promote estrogenic activity, leading to conditions like gynecomastia. Additionally, the hormone’s own estrogenic activity, though low, can contribute to water retention and gynecomastia, especially when combined with progesterone.
Natural testosterone suppression is an inevitable side effect of Deca Durabolin use, with studies showing it can suppress up to 75% of natural testosterone production with a single low-dose injection. Cardiovascular effects, including high blood pressure and cholesterol changes, are possible but can be managed with proper water retention control and monitoring cholesterol levels. While Deca Durabolin’s impact on LDL cholesterol is minimal, it may significantly reduce HDL cholesterol.
Androgenic side effects such as hair loss, acne, and increased body hair growth are also possible, but the steroid’s low androgenicity means most men won’t experience these issues.
Prevention is better than cure for side effects
To avoid the side effects of Deca Durabolin, it’s crucial to take proper precautions. For managing estrogenic effects like gynecomastia and water retention, anti-estrogen medications such as Aromatase Inhibitors (AI’s) like Arimidex or Femara prove effective. These inhibitors block the aromatase process, reducing estrogen levels and protecting against progesterone. Selective Estrogen Receptor Modulators (SERM’s) like Nolvadex or Fareston can also be used, but may not suffice for all individuals, especially in controlling water retention.
To mitigate testosterone suppression, supplementing with exogenous testosterone is key. Since Deca Durabolin suppresses natural testosterone production, providing the body with exogenous testosterone resolves the issue and maintains hormonal balance. It’s important to manage estrogen levels alongside testosterone to avoid related side effects.
For cardiovascular effects, controlling water retention is essential to prevent high blood pressure. Maintaining a cholesterol-friendly diet rich in omega fatty acids, low in sugars and saturated fats, and supplementing with fish oil can help regulate cholesterol levels. Regular cardiovascular exercise is also recommended, along with considering a cholesterol antioxidant supplement.
Androgenic side effects such as hair loss and acne are largely determined by genetics. While Deca Durabolin’s androgenicity is mild, those predisposed to male pattern baldness may experience accelerated hair loss. However, most individuals find Deca Durabolin well-tolerated in terms of androgenic effects. Avoiding 5-alpha reductase inhibitors is advised, as they can exacerbate Deca Durabolin’s androgenicity by metabolizing it to dihydronandrolone (DHN), rather than dihydrotestosterone (DHT).
The Liver and Deca Durabolin
The great news is Deca Durabolin is not in any way harmful to the liver.
What results to expect
Many people are curious about the results they can expect from Deca Durabolin. Will it deliver the gains they’re hoping for, or will it come with unexpected issues? These are common questions, and while there’s no one-size-fits-all answer, healthy adult males can achieve their desired outcomes with proper use.
One of the main benefits of Deca Durabolin is its ability to significantly increase lean muscle mass. But it’s important to remember that it’s not a magic solution; you still need to maintain a proper diet and exercise routine. Deca Durabolin enhances your efforts rather than doing all the work for you. To see good results, you need to be putting in the work beforehand.
To get the most out of Deca Durabolin for muscle growth, you should aim to consume slightly more calories than your body needs to maintain its weight. The exact amount varies from person to person, but you don’t need to go overboard with surplus calories. Controlling your diet is key to minimizing fat gain while maximizing muscle gains. Although Deca Durabolin is often associated with water retention, you can manage this effectively with anti-estrogen medications. But if you’re experiencing significant water retention, it might be a sign that you’re overeating rather than just a result of the steroid.
Another concern is the possibility of erectile dysfunction despite supplementing with testosterone. It’s crucial to maintain a healthy balance of testosterone and estrogen to avoid these issues. Increasing testosterone doses might worsen the problem by increasing estrogenic activity, while using too many anti-estrogens can lead to sexual performance issues. Finding the right balance is essential for achieving the desired results without compromising sexual function.
When it comes to expectations, it’s important to be realistic. Deca Durabolin doesn’t provide overnight results like some other steroids. Its gains are more stable and genuine muscle mass, but it might take longer to see results. However, these gains are more likely to stick around over time.
Beyond muscle growth, Deca Durabolin also offers significant therapeutic benefits. It speeds up recovery, which is crucial for making progress in your training. It also provides relief from joint and connective tissue pain, contributing to overall well-being and performance. These therapeutic effects are often overlooked but are incredibly valuable, especially for athletes looking to stay in the game for the long haul.
Stacking Deca Durabolin
Stacking Deca Durabolin isn’t overly complex, but without a grasp of maintaining hormonal balance, it can become quite challenging. Avoiding the dreaded sexual side effects while stacking Deca Durabolin requires a delicate equilibrium of testosterone and estrogen. However, maintaining control is straightforward with the right approach.
Deca Durabolin is commonly stacked during off-season growth phases, although it finds utility in cutting cycles as well. It harmonizes well with various steroids, depending on individual goals. However, regardless of the stacking combination, dietary habits remain paramount.
When stacking Deca Durabolin, choosing the right steroids is crucial for achieving specific goals effectively. Here’s a breakdown of how Deca Durabolin pairs with different steroids:
Anadrol: Effective for kickstarting off-season plans or breaking through plateaus.
Anavar: Less commonly paired, usually for physique transformation goals rather than bulking or cutting.
Dianabol: One of the most popular and effective combinations for rapid gains.
Equipoise: Often used in conjunction with Deca Durabolin for therapeutic benefits in cutting cycles.
Halotestin: Enhances athletic performance when used with a low therapeutic dose of Deca Durabolin.
Masteron: Rarely stacked together due to different goals at the cutting stage.
Primobolan: Can be beneficial for bulking when used alongside Deca Durabolin, though at a higher cost.
Testosterone: Essential to counter natural testosterone suppression caused by Deca Durabolin, forming a potent bulking stack.
Trenbolone: A potent combination but reserved for experienced users due to potential hormonal imbalances.
Winstrol: A popular athletic stack, milder and safer compared to Halotestin.
Maintaining Balance When Stacking Deca Durabolin:
Achieving hormonal balance is critical when stacking Deca Durabolin. Start by ensuring testosterone supplementation alongside Deca Durabolin to prevent low testosterone symptoms.
Next, manage estrogen and progesterone activity induced by Deca Durabolin with anti-estrogens, typically aromatase inhibitors (AIs). However, it’s essential to strike a balance; excessively low estrogen levels can lead to complications, just as uncontrolled estrogen can.
Adding more testosterone to alleviate sexual side effects may exacerbate the issue by increasing aromatization. Therefore, finding the right equilibrium between testosterone and estrogen is crucial for a successful Deca Durabolin stack.
A Deca Durabolin Cycle
A Deca Durabolin cycle can be an exciting journey for most men, often centered around a period of growth where increasing muscle size is the primary goal. While it’s commonly associated with bulking, Deca Durabolin also finds utility in cutting cycles and among athletes who aren’t necessarily focused on bulking or cutting. However, let’s delve into the specifics of planning a Deca Durabolin cycle and help you tailor one to suit your needs.
Planning a Deca Durabolin cycle need not be daunting; in fact, it can be one of the simplest cycles to organize. Amidst the myriad of misinformation online and in local gyms, we aim to provide clarity by presenting various cycle plans to help you craft the ideal Deca Durabolin cycle. Keep in mind that these are mere guidelines, and adjustments may be necessary to cater to individual requirements.
*Bulking Deca Durabolin Cycle:
A bulking Deca Durabolin cycle is the go-to choice for many men seeking substantial muscle gains. A straightforward stack of Deca Durabolin and testosterone is often sufficient. The type of testosterone matters little; what’s crucial is ensuring your body receives adequate testosterone to meet its demands. During a growth phase, higher testosterone doses are typically recommended. Long-acting ester base testosterones like Testosterone Cypionate and Testosterone Enanthate are commonly favored. Some individuals may find additional steroids like Anadrol or Dianabol beneficial. Notably, the combination of Deca Durabolin, Dianabol, and testosterone is a classic and highly effective steroid cycle.
It’s worth dispelling a myth here: contrary to popular belief, other 19-nortestosterone steroids can indeed be used with Deca Durabolin without competing for the same receptors. Likewise, steroids like Equipoise can be employed in conjunction with Deca Durabolin without issue.
*Cutting Deca Durabolin Cycle:
While Deca Durabolin isn’t typically the cornerstone of a cutting cycle, it can serve as a supplementary addition for muscle tissue preservation and therapeutic effects. For competitive bodybuilders, incorporating Deca Durabolin at the beginning of the cutting phase before transitioning to hardening agents toward the end is common practice. It’s crucial to note that this type of Deca Durabolin cycle isn’t recommended for novice steroid users and may extend beyond their comfort zone.
*Athletic Deca Durabolin Cycle:
Deca Durabolin can benefit most athletes when used judiciously. Typically, a low dose of Deca Durabolin is combined with a strength-promoting steroid and a minimal dose of testosterone. While some athletes may opt for testosterone gel, low-dose injections are generally preferred.
Typical Deca Durabolin Cycle: (see notes at bottom of page)
Below, we’ve outlined sample Deca Durabolin cycles for various purposes, including off-season bulking, cutting, and athletic enhancement. It’s important to choose a cycle that aligns with your experience level and goals, and always adhere to safe practices.
Bulking Deca Durabolin Cycle – Moderate:
| Week | Testosterone Enanthate | Deca Durabolin | Dianabol | Arimidex |
| 1 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 2 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 3 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 4 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 5 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 6 | 500mg/wk | 400mg/wk | 30mg/ed | 0.5mg/eod |
| 7 | 500mg/wk | 400mg/wk | 0.5mg/eod | |
| 8 | 500mg/wk | 400mg/wk | 0.5mg/eod | |
| 9 | 500mg/wk | 400mg/wk | 0.5mg/eod | |
| 10 | 500mg/wk | 400mg/wk | 0.5mg/eod | |
| 11 | 500mg/wk | 400mg/wk | 0.5mg/eod | |
| 12 | 500mg/wk | 400mg/wk | 0.5mg/eod |
Bulking Deca Durabolin Cycle – Advanced
| Week | Testosterone Cypionate | Deca Durabolin | Dianabol | HGH | Arimidex |
| 1 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 2 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 3 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 4 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 5 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 6 | 200mg/eod | 500mg/wk | 50mg/ed | 4iu/ed | 0.5mg/eod |
| 7 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 8 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 9 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 10 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 11 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 12 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 13 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 14 | 200mg/eod | 500mg/wk | 4iu/ed | 0.5mg/eod | |
| 15 | 200mg/eod | 4iu/ed | 0.5mg/eod | ||
| 16 | 200mg/eod | 4iu/ed | 0.5mg/eod |
Deca Durabolin Cutting Cycle
| Week | Testosterone Enanthate | Testosterone Propionate | Deca Durabolin | Trenbolone Acetate | Anavar | HGH | Arimidex |
| 1 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 2 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 3 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 4 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 5 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 6 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 7 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 8 | 250mg/eod | 200mg/wk | 4iu/ed | 1mg/eod | |||
| 9 | 200mg/eod | 200mg/wk | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | |
| 10 | 200mg/eod | 200mg/wk | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | |
| 11 | 200mg/eod | 200mg/wk | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | |
| 12 | 200mg/eod | 200mg/wk | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | |
| 13 | 200mg/eod | 200mg/wk | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | |
| 14 | 100mg/eod | 100mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | ||
| 15 | 100mg/eod | 200mg/eod | 60mg/ed | 4iu/ed | 1mg/eod | ||
| 16 | 100mg/eod | 200mg/eod | 60mg/ed | 4iu/ed | 1mg/eod |
Another cutting Deca Durabolin Cycle
| Week | Deca Durabolin | Winstrol | HGH | Testosterone Cypionate |
| 1 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 2 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 3 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 4 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 5 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 6 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 7 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
| 8 | 200mg/wk | 50mg/eod | 2iu/ed | 150mg/wk |
Notes for Deca Durabolin Cycle:
- Adjust Arimidex dosage as needed to maintain hormonal balance. Options include Arimidex, Letrozole, or Aromasin for aromatase inhibition.
- Dianabol inclusion is optional in bulking cycles but included in samples for consideration.
- While not mandatory, Human Growth Hormone (HGH) can significantly enhance any Deca Durabolin cycle.
- Testosterone Enanthate and Testosterone Cypionate are interchangeable; either can be used interchangeably.
Conclusion
Deca Durabolin stands out as one of the most potent and advantageous anabolic steroids in history. It’s well-tolerated by most men, making it suitable for both novice and seasoned users. Its enduring popularity stems from its unparalleled efficacy and therapeutic prowess, making it indispensable in off-season mass gain cycles. With a rich history spanning over 75 years, Deca Durabolin remains unrivaled in its specific functionalities, firmly entrenched at the forefront of steroid options. The synergy of testosterone, Dianabol, and Deca Durabolin constitutes a quintessential stack for many bodybuilders.
Moreover, the therapeutic potential of Deca Durabolin is immense, although often overlooked in the U.S. medical community. However, an increasing number of physicians are recognizing its myriad therapeutic benefits, acknowledging its vital role beyond mere performance enhancement.
Raw Data
- Manufacturer: OrganonRelease Date (in USA): 1962
- Molecular Weight (base): 274.4022
- Molecular Weight (ester): 172.2668
- Formula (base): C18 H26 O2
- Formula (ester): C10 H20 O2Melting Point (base): 122-124C
- Melting Point (ester): 31 – 32 C
- Effective Dose (Men): 200-600mgs/week (2mg/lb of Bodyweight)
- Effective Dose (Women): 50-100mgs/weekActive life: 15 days
- Detection Time: Up to 18 months
- Anabolic/Androgenic ratio: 125:37
- (Nandrolone Base + Decanoate Ester) [19-nor-androst-4-en-3-one-17beta-ol]
