British Dragon
British Dragon
Mastabol 200 mg
Product Information
Compound Details
Active Substance
Drostanolone Enanthate
Long-Acting DHT-Derived Anabolic-Androgenic Steroid
200 mg/mL
Strength
200 mg/mL
Package
10 mL Vial
2,000 mg Total Labeled Content
Form
Oil-Based Injectable
Drug Class
Anabolic-Androgenic Steroid
Estimated Half-Life
Approximately 7–10 Days
Manufacturer
British Dragon
Shipping :
International
U.S. Domestic
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- Overview
- Profile
- Usage
- Safety
- Shipping
- Storage
- FAQ
- Reviews
Product Overview
Mastabol 200 mg by British Dragon
Mastabol 200 mg is an oil-based injectable containing Drostanolone Enanthate, manufactured by British Dragon and dosed at 200 mg/mL in a 10 mL vial.
Drostanolone Enanthate Injectable
Mastabol 200 mg contains drostanolone enanthate, a synthetic anabolic-androgenic steroid derived from dihydrotestosterone (DHT). It is structurally modified by the addition of a methyl group at the carbon-2 alpha position, which significantly increases its anabolic strength and protects it from metabolic breakdown by the 3-hydroxysteroid dehydrogenase enzyme in skeletal muscle tissue . The enanthate ester is attached to the 17-beta hydroxyl group, significantly slowing absorption from the injection site and extending its duration of action compared to the propionate ester.
Drostanolone was originally developed for clinical use in oncology. It has been used for the palliation of androgen-responsive recurrent mammary cancer in postmenopausal women. A clinical trial compared drostanolone propionate (Masteril) and nandrolone decanoate in the treatment of breast carcinoma. Its therapeutic application in medicine remains limited, and it is not approved for human performance enhancement. Drostanolone is prohibited by the World Anti-Doping Agency, and it is one of the most frequently detected anabolic androgenic steroids in doping control analysis.
In non-medical bodybuilding contexts, drostanolone enanthate is commonly referenced for its non-aromatizing properties and its ability to promote muscle hardness and vascularity, particularly during cutting phases. Because it is derived from DHT, it does not convert to estrogen, meaning it does not cause water retention or gynecomastia. The longer enanthate ester requires less frequent injections than the propionate version but also has a longer clearance time, which can affect post-cycle therapy timing. Such use falls outside approved indications.
Key Properties of Mastabol 200 mg
- DHT-derived anabolic steroid with anti-estrogenic properties
- Non-aromatizing: does not convert to estrogen, avoiding water retention
- Long-acting enanthate ester for less frequent injections
- Commonly referenced for muscle hardness and vascularity in cutting phases
- 10 mL vial provides 2,000 mg total labeled content
Carrier Oil
MCT Oil Formulation
Mastabol 200 mg uses MCT oil as its carrier oil, providing the oil base for the drostanolone enanthate formulation. MCT oil is a commonly used carrier for injectable anabolic preparations, selected for its low viscosity and compatibility with esterified compounds.
Product Profile
Drostanolone Enanthate Profile
Drostanolone enanthate is a long-acting, non-aromatizing anabolic steroid derived from dihydrotestosterone, commonly referenced for its effects on muscle hardness and vascularity.
Long-Acting DHT-Derived Ester
Drostanolone enanthate is a modified form of dihydrotestosterone (DHT), featuring a methyl group at the carbon-2 alpha position. This structural modification enhances the steroid's anabolic properties and provides resistance to metabolic breakdown by the 3-hydroxysteroid dehydrogenase enzyme found in skeletal muscle. The enanthate ester attached to the 17-beta hydroxyl group makes the molecule more lipophilic than free drostanolone, leading to slower absorption from the injection site and a prolonged therapeutic window.
As a DHT derivative, drostanolone enanthate does not aromatize to estrogen. It also exhibits anti-estrogenic properties, which made it a therapeutic option for estrogen receptor-positive breast cancer in postmenopausal women. This anti-estrogenic activity is one reason it is commonly referenced in non-medical cutting contexts.
Unlike 17-alpha-alkylated oral steroids, drostanolone is not directly hepatotoxic because it is not 17-alpha-alkylated. However, its androgenic nature and effects on lipid profiles are significant considerations.
Release Profile
Slow Release, Extended Duration
The enanthate ester produces a significantly slower release profile than the propionate ester. While drostanolone propionate has a half-life of approximately 2-3 days, the enanthate ester extends this to approximately 7-10 days. This longer duration supports less frequent injections but also means the compound takes longer to clear the system before post-cycle therapy.
Mastabol 200 mg vs Other British Dragon Preparations
British Dragon offers both short-acting and long-acting drostanolone preparations. Mastabol 100 contains drostanolone propionate, a short-acting ester requiring more frequent injections. Mastabol 200's distinguishing characteristic is its longer enanthate ester, which allows for less frequent administration. Other injectable options from British Dragon include Trenabol 100 (trenbolone acetate) and Testabol Propionate (testosterone propionate).
Dosage & Usage
Mastabol 200 mg Dosage & Usage
The information below is provided for educational reference only. Drostanolone enanthate is a controlled substance and is not approved for human performance enhancement. Non-medical use falls outside approved indications.
Typical Dosage Ranges
In non-medical bodybuilding contexts, drostanolone enanthate is commonly referenced in the range of 200 to 600 mg per week. A clinical dosage recommendation notes 1-4 mg/kg of body weight, three times per week. Community discussions reference 400 mg per week and 600 mg per week as common ranges. Because of the longer enanthate ester, injections are typically administered two times weekly.
| Use Case | Common Reference Range | Injection Frequency |
|---|---|---|
| Conservative non-medical (reported) | 200–300 mg/week | 2 times weekly |
| Standard non-medical (reported) | 400–500 mg/week | 2 times weekly |
| Higher-dose non-medical (reported) | 600 mg/week | 2 times weekly |
These non-medical ranges represent community-reported practices and are not derived from controlled clinical trials for performance enhancement. Cycle duration in non-medical contexts is typically referenced at 8–12 weeks.
Stacking & Cycle Considerations
In non-medical bodybuilding contexts, drostanolone enanthate is commonly stacked with a testosterone base, such as Testabol Depot or Testabol Enanthate. A forum guide emphasizes that "Mast suppresses the HPTA but doesn't fully replace test androgenically. Users who try to 'Mast-only' or cruise with Mast > test almost always end up with dead libido inside 3–4 weeks. Keep test ≥ mast".
Drostanolone enanthate is also frequently referenced alongside Trenabol 100 or Stanabol 10 for cutting cycles.
Managing Side Effects
Drostanolone enanthate is associated with several side effects. Androgenic effects such as acne, oily skin, and hair loss are common in predisposed individuals. A case report documented scalp hair loss and nail destruction in a bodybuilder who tested positive for drostanolone and stanozolol.
Cardiovascular concerns include increased blood pressure and potential ventricular hypertrophy with long-term use. Lipid values, especially HDL suppression, should be monitored as duration increases. Suppression of endogenous testosterone production occurs, which may lead to sexual dysfunction and mood changes.
Post-Cycle Therapy (PCT)
Drostanolone enanthate suppresses endogenous testosterone production. Because of the longer enanthate ester, PCT should not begin until approximately 2 weeks after the final injection. Agents such as Clomiphene or Tamoxifen are commonly referenced for this purpose.
Important
Individual Response Varies
Drostanolone enanthate has no approved human use for performance enhancement. Any information about non-medical use is derived from user-reported practices and is not validated by controlled clinical research. This information does not constitute medical advice.
Safety & Information
Drostanolone Enanthate Safety Information
Drostanolone enanthate is a controlled anabolic steroid with significant cardiovascular, androgenic, and endocrine risks. It is not approved for athletic performance enhancement.
Important Safety Information
Drostanolone enanthate is a synthetic anabolic-androgenic steroid. It is not approved for human performance enhancement, and its use for such purposes falls outside approved indications. The compound is prohibited by WADA, and drostanolone is one of the most frequently detected anabolic androgenic steroids in doping control analysis.
A case report documented scalp hair loss and nail destruction as possible side effects of anabolic androgenic steroid doping in a Japanese athlete who tested positive for drostanolone and stanozolol.
Important
Non-Medical Use
Non-medical use of drostanolone enanthate falls outside approved indications. Product purity does not establish that non-medical use is safe or appropriate for an individual.
Potential Adverse Effects
Androgenic side effects include virilization (masculine traits in women), acne, oily skin, and hair loss in predisposed individuals. Voice changes in women are not reversible, and discontinuing at the first sign of virilization is critical.
Cardiovascular concerns include increased blood pressure and potential ventricular hypertrophy with long-term use. Lipid values, especially HDL suppression, should be monitored as duration increases. Suppression of endogenous testosterone production occurs, which may lead to sexual dysfunction and mood changes.
Conditions Requiring Medical Evaluation
Anabolic steroids such as drostanolone enanthate should be avoided by individuals with pre-existing cardiovascular disease, hepatic impairment, or a history of hormone-sensitive cancers. Women who are pregnant or may become pregnant should avoid exposure to androgens.
Monitoring During Therapy
Because drostanolone enanthate has no approved human use for performance enhancement, no standardized monitoring protocols exist for non-medical use. In community harm-reduction contexts, monitoring of blood pressure, lipid profile, and hematocrit is commonly referenced.
Product Care
Storage & Handling
Store in a dry, shaded area below 30°C. Protect from excessive heat, moisture, and direct light. Do not freeze. Inspect the vial and solution before use and do not use a product that appears damaged, contaminated, or otherwise abnormal. Keep out of reach of children.
Further Safety Information
Shipping & Authenticity
Shipping & Product Authenticity
Mastabol 200 mg is supplied through the official British Dragon distribution chain and shipped in original manufacturer packaging with discreet, privacy-focused handling.
USA Domestic 3–5 business days
International 10–15 business days
Order Processing 24–48 business hours
Tracking Provided after dispatch
Direct Supply
Discreet Delivery & Original Packaging
The outer shipping package remains discreet, with privacy-focused handling and no unnecessary external product details. Products are supplied through the official British Dragon distribution chain.
What to Expect
- Orders are processed after payment confirmation
- USA Domestic shipping is typically faster when local stock is selected
- International orders include tracking, though update frequency may vary by destination
- Multiple warehouses may result in separate shipments when applicable
Authenticity Verification
To verify your Mastabol 200 mg product, use the security code on the vial label and cross-check it on the British Dragon official site. Official British Dragon presentation and original packaging help reinforce product legitimacy and buyer confidence.
For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.
Storage
Mastabol 200 mg Storage
Proper storage conditions help preserve formulation stability and overall product integrity throughout shelf life.
Recommended Conditions
Store in a dry, shaded area below 30°C. Protect from excessive heat, moisture, and direct light. Maintaining stable conditions helps preserve the integrity of the oil-based formulation.
Keep the vial in its original packaging until use. Do not freeze. Before administration, inspect the solution and avoid use if it appears cloudy, discolored, contains particulate matter, or if the vial or seal is compromised.
Keep out of reach of children. Follow proper handling and sterile injection practices when administering the product.
Quick Reference
Do & Don't
- Do store below 30°C
- Do keep in original packaging
- Do inspect before each use
- Don't freeze the vial
- Don't expose to direct sunlight
- Don't use if solution looks abnormal
Frequently Asked Questions
Mastabol 200 mg FAQ
Answers to common questions about Mastabol 200 mg, drostanolone enanthate, release characteristics, product strength, and related topics.
What is Mastabol 200 mg used for?
Mastabol 200 mg contains drostanolone enanthate, a DHT-derived anabolic steroid. It was historically used for palliation of androgen-responsive recurrent mammary cancer in postmenopausal women. In non-medical bodybuilding contexts, it is commonly referenced for muscle hardness and vascularity during cutting phases, though such use falls outside approved indications.
How often should Mastabol 200 mg be injected?
Due to the longer enanthate ester, drostanolone enanthate has an extended half-life and is typically injected two times weekly. This less frequent administration is a key difference from the propionate ester, which requires every-other-day injections. In non-medical contexts, weekly totals of 200–600 mg are commonly referenced.
Does Mastabol 200 mg require PCT?
Yes, drostanolone enanthate suppresses endogenous testosterone production. Because of the longer ester, PCT should not begin until approximately 2 weeks after the final injection. Agents such as Clomiphene or Tamoxifen are commonly referenced for this purpose.
What does Drostanolone Enanthate do?
Drostanolone binds to the androgen receptor, causing downstream genetic transcriptional changes that lead to retention of nitrogen, potassium, and phosphorus; increased protein anabolism; and decreased amino acid catabolism. It is a DHT derivative and does not convert to estrogen.
How long does Mastabol 200 take to work?
The enanthate ester has a longer half-life than the propionate, so blood levels build more gradually. Users may notice initial effects within 2-3 weeks, with full steady-state effects for enanthate users becoming apparent around week 8-12. Cycle duration is typically referenced at 8-12 weeks.
Is Mastabol the best cutting steroid?
There is no universally best cutting steroid. Drostanolone enanthate's distinguishing characteristics include its non-aromatizing nature, anti-estrogenic properties, and its effects on muscle hardness and vascularity. However, it is often described as providing minimal anabolic benefit as a standalone compound and is best used as an enhancement to a testosterone base.
What is the difference between Mastabol 200 and Mastabol 100?
Mastabol 200 contains drostanolone enanthate, a long-acting ester requiring two injections per week. Mastabol 100 contains drostanolone propionate, a short-acting ester requiring every-other-day injections. The enanthate version provides a slower, more sustained release, while the propionate version allows for faster clearance.
What is the difference between Mastabol 200 and Testabol Depot?
Mastabol 200 contains drostanolone enanthate, a DHT-derived, non-aromatizing steroid. Testabol Depot contains testosterone cypionate, which aromatizes to estrogen. Drostanolone is more commonly referenced for muscle hardness and estrogen management, while testosterone is a foundational compound for mass and strength.
Is 200 mg of Mastabol a lot?
Mastabol 200 mg is labeled at 200 mg of drostanolone enanthate per mL. In non-medical contexts, weekly totals of 200–600 mg are commonly referenced, meaning a single 200 mg injection could represent a week's dose for conservative users, or a portion of a higher weekly total.
What strength is Mastabol 200 mg?
Mastabol 200 mg is labeled at 200 mg of drostanolone enanthate per mL. It is supplied as an oil-based injectable in a 10 mL vial, giving 2,000 mg of total labeled content per vial, manufactured by British Dragon.
Is Mastabol 200 lab tested?
No lab reports were provided for this specific product listing. For products with published laboratory reports, those results would apply to the specific tested sample and should not be interpreted as a measurement of every vial or production batch.
Why is Mastabol associated with muscle hardness?
Drostanolone enanthate is derived from DHT and does not convert to estrogen, which means it does not cause water retention. This lack of subcutaneous water makes muscles appear harder and more defined. Its anti-estrogenic properties also contribute to a drier, more vascular appearance.
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