British Dragon
British Dragon
Primobol 100 mg
Product Information Compound Details
Active Substance Methenolone Enanthate Long-Acting DHT-Derived Anabolic-Androgenic Steroid
100 mg/mLStrength 100 mg/mL
Package 10 mL Vial 1,000 mg Total Labeled Content
Form Oil-Based Injectable
Drug Class Anabolic-Androgenic Steroid
Estimated Half-Life Approximately 7–10 Days
Manufacturer British Dragon
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- Overview
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- Safety
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- FAQ
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Product Overview
Primobol 100 mg by British Dragon
Primobol 100 mg is an oil-based methenolone enanthate injectable manufactured by British Dragon and dosed at 100 mg/mL in a 10 mL vial.
Methenolone Enanthate Injectable
Primobol 100 mg contains methenolone enanthate, a long-acting anabolic-androgenic steroid derived from dihydrotestosterone (DHT). Methenolone is known for its moderate anabolic activity and relatively weak androgenic properties compared to many other anabolic steroids. The enanthate ester extends the release profile, making it suitable for less frequent administration.
In medical practice, methenolone enanthate has been used for conditions requiring increased protein production, such as chronic wasting diseases, cachexia, and certain cancers. In bodybuilding and performance-enhancement settings, it is commonly referenced for cutting phases and muscle preservation during caloric deficits, where maintaining lean mass is a primary goal. Methenolone does not aromatize to estrogen, which distinguishes it from testosterone-based compounds.
Methenolone binds to the androgen receptor and promotes nitrogen retention and protein synthesis in muscle tissue. Its anabolic-to-androgenic ratio is considered favorable for users seeking quality muscle retention with minimal estrogenic or androgenic side effects. However, like all anabolic steroids, non-medical use falls outside approved indications and carries potential health risks.
Key Benefits of Primobol 100 mg
- Moderate anabolic activity with weak androgenic properties
- Does not aromatize to estrogen
- Supports muscle preservation during cutting phases
- Long-acting enanthate ester for less frequent injections
- Favorable safety profile compared to many oral steroids
Carrier Oil
MCT Oil Formulation
Primobol 100 mg uses MCT oil as its carrier oil, providing a smooth oil-based formulation for the methenolone enanthate injectable.
Product Profile
Methenolone Enanthate Profile
Methenolone enanthate is a long-acting injectable anabolic steroid with a pharmacological profile distinct from testosterone and nandrolone esters. Its weak androgenic activity and inability to aromatize are defining characteristics.
Long-Acting DHT-Derived Anabolic Steroid
The enanthate ester slows the release of methenolone from the injection site, providing a gradual and prolonged duration of activity. This release profile reduces the frequency of administration compared to shorter-acting esters.
Methenolone is structurally related to dihydrotestosterone (DHT) and does not aromatize to estrogen. This means it is not associated with estrogenic side effects such as gynecomastia or water retention. Its androgenic activity is considered weak relative to testosterone, though androgenic effects can still occur at higher doses.
These characteristics explain why methenolone enanthate is commonly referenced in bodybuilding contexts where a mild, non-aromatizing compound is desired for cutting phases or muscle preservation.
Release Profile
Gradual, Extended Methenolone Release
The enanthate ester provides a slower release than methenolone acetate, the oral form of the compound. The biological half-life of methenolone enanthate after intramuscular injection has been reported at approximately 10.5 days, supporting once- or twice-weekly administration schedules.
Primobol 100 mg vs Other British Dragon Preparations
British Dragon offers several injectable preparations with different active substances and release profiles. Primobol 100 mg is distinguished by its methenolone enanthate content and 100 mg/mL concentration.
For those considering alternative injectable compounds, Boldabol offers boldenone undecylenate with a longer ester and different anabolic characteristics, while Mastabol 100 provides drostanolone propionate, a shorter-acting compound often referenced in cutting contexts. Stanabol Inj (stanozolol) is another non-aromatizing option commonly compared to methenolone in bodybuilding discussions.
Dosage & Usage
Primobol 100 mg Dosage & Usage
The information below is provided for educational reference only. Methenolone enanthate is a controlled anabolic steroid; medical use requires appropriate diagnosis and clinical supervision. Non-medical use falls outside approved indications.
Typical Dosage Ranges
In bodybuilding contexts, methenolone enanthate is commonly referenced in the range of 200–600 mg per week for men, with lower ranges typically referenced for beginners and higher ranges for experienced users. Women are generally referenced at significantly lower doses, commonly 50–100 mg per week. Primobol 100 mg at 100 mg/mL is a relatively low-concentration preparation, meaning larger injection volumes may be required to reach higher weekly totals.
| Use Case | Common Reference Range | Injection Frequency |
|---|---|---|
| Men (beginner/intermediate) | 200–400 mg / week | Once or twice weekly |
| Men (experienced) | 400–600 mg / week | Twice weekly or split |
| Women | 50–100 mg / week | Once weekly or split |
Stacking & Cycle Considerations
In non-medical bodybuilding contexts, methenolone enanthate is frequently used during cutting cycles and may be combined with other non-aromatizing compounds. It is sometimes stacked with testosterone at a lower dose to maintain hormonal balance. British Dragon offers several products commonly referenced in cutting contexts, including Stanabol 50 and Mastabol 200.
Because methenolone does not aromatize, it does not provide the estrogenic support that testosterone does. Users combining it with other compounds should consider how this affects overall hormonal balance.
Managing Side Effects
Methenolone enanthate is generally considered to have a mild side effect profile compared to many other anabolic steroids. However, it can still suppress endogenous testosterone production, which may require post-cycle recovery support. Lipid profile changes, including reduced HDL cholesterol, have been associated with anabolic steroid use generally.
Androgenic side effects such as acne and hair loss in predisposed individuals can occur, particularly at higher doses. Women may experience virilization symptoms at higher doses, and lower ranges are typically referenced to minimize this risk.
Post-Cycle Therapy (PCT)
After completing a cycle with Primobol 100 mg, post-cycle therapy may be considered to support restoration of endogenous testosterone production. Agents such as Clomiphene and Tamoxifen are commonly referenced for this purpose in bodybuilding contexts.
PCT protocols vary based on cycle length, compounds used, and individual factors. Bloodwork can help inform recovery strategy.
Important
Individual Response Varies
Dosing strategies, support compounds, and recovery protocols should be adjusted based on experience level and individual factors. The information above is for educational reference and does not constitute medical advice.
Safety & Information
Methenolone Enanthate Safety Information
Methenolone enanthate is an anabolic steroid that can affect hormonal, cardiovascular, and hepatic function. Medical use requires appropriate diagnosis, clinical supervision, and ongoing monitoring.
Important Safety Information
Anabolic steroids are controlled substances in many countries and are not approved for bodybuilding or performance enhancement in healthy individuals. Methenolone enanthate has been used medically for specific catabolic conditions, but non-medical use falls outside approved indications.
Methenolone enanthate can suppress natural testosterone production, which may affect fertility and hormonal balance. Individual risk depends on dose, duration, health status, and other factors.
Important
Non-Medical Use
Anabolic steroid use for physique or performance enhancement is not medically approved. Product concentration and laboratory verification do not establish that non-medical use is safe or appropriate for an individual.
Potential Adverse Effects
Anabolic steroids including methenolone enanthate can affect lipid profiles, typically reducing HDL cholesterol and potentially increasing LDL cholesterol. These changes may have cardiovascular implications, particularly with prolonged use.
Endogenous testosterone suppression is expected with exogenous anabolic steroid use. This can lead to reduced sperm production and testicular atrophy during use. Recovery of natural hormone production after discontinuation varies by individual and cycle characteristics.
Androgenic effects such as acne, oily skin, and hair loss in predisposed individuals can occur. Women may experience virilization symptoms including voice deepening, clitoral enlargement, and menstrual irregularities, particularly at higher doses.
Conditions Requiring Medical Evaluation
Anabolic steroids are not appropriate for individuals with certain medical conditions. Medical evaluation should precede any consideration of use, particularly for those with existing cardiovascular disease, liver conditions, prostate issues, or a history of hormone-sensitive cancers.
Pregnancy and breastfeeding are absolute contraindications. Women considering use should be aware of the potential for irreversible virilization effects.
Monitoring During Therapy
Medically supervised anabolic steroid therapy involves regular monitoring of liver function, lipid profiles, and hormone levels. Hematocrit and blood pressure should also be assessed. Non-medical use typically lacks this monitoring, increasing the risk of unrecognized adverse effects.
Laboratory testing of the product itself, such as the published potency report shown in the Lab Reports tab, is separate from clinical monitoring of the individual.
Product Care
Storage & Handling
Keep the vial securely stored and protected from conditions that could compromise the product or container. Inspect the vial and solution before use and do not use a product that appears damaged, contaminated, or otherwise abnormal.
Keep all medications and injectable products out of the reach of children. Follow the storage instructions provided with the product packaging.
Further Safety Information
Shipping & Authenticity
Shipping & Product Authenticity
Primobol 100 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 Primobol 100 mg product, use the security features on the vial label and cross-check them with official British Dragon presentation. Genuine British Dragon vials typically feature specific label characteristics and packaging details that distinguish them from counterfeits.
For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.
Storage
Primobol 100 mg Storage
Proper storage conditions help preserve formulation stability and overall product integrity throughout shelf life.
Recommended Conditions
Store at controlled room temperature (15–25°C) and protect from excessive heat, moisture, and direct light. Maintaining stable conditions helps preserve the integrity of the oily 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 at 15–25°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
Primobol 100 mg FAQ
Answers to common questions about Primobol 100 mg, methenolone enanthate, release characteristics, product strength, and related topics.
What is Primobol 100 mg used for?
Primobol 100 mg contains methenolone enanthate, an anabolic steroid. In medical practice, methenolone has been used for conditions requiring increased protein production, such as chronic wasting diseases. In non-medical bodybuilding settings, Primobol 100 mg is commonly referenced for cutting phases and muscle preservation, though such use falls outside approved medical indications.
How often should Primobol 100 mg be injected?
The enanthate ester provides a long release profile, and methenolone enanthate is commonly referenced as being administered once or twice weekly in bodybuilding contexts. Injection frequency may be adjusted based on the total weekly dose and individual factors.
Does Primobol 100 mg require PCT?
Methenolone enanthate can suppress endogenous testosterone production. In non-medical bodybuilding contexts, post-cycle therapy is commonly referenced after a Primobol cycle to support hormonal recovery. Agents such as Clomiphene and Tamoxifen are commonly discussed for this purpose.
What does methenolone enanthate do?
Methenolone enanthate is an anabolic steroid that binds to the androgen receptor and promotes nitrogen retention and protein synthesis in muscle tissue. It is derived from dihydrotestosterone and does not aromatize to estrogen. Its anabolic activity is considered moderate, with relatively weak androgenic effects compared to many other anabolic steroids.
How long does methenolone enanthate take to work?
Because of the enanthate ester, methenolone enanthate is released gradually after injection. The reported biological half-life is approximately 10.5 days. Visible effects on physique and performance are typically referenced as taking several weeks to become apparent, depending on dose, diet, training, and individual factors.
Is Primobol 100 mg a good choice for beginners?
Methenolone enanthate is often described as having a mild side effect profile relative to other anabolic steroids. However, it is still a controlled anabolic steroid with potential adverse effects, including endogenous testosterone suppression. Non-medical use by beginners falls outside approved indications and carries health risks.
What is the difference between methenolone enanthate and methenolone acetate?
Methenolone enanthate is the injectable, long-acting form, while methenolone acetate is the oral form. The enanthate ester provides a slower release and longer duration of activity, while the oral form has a shorter half-life and requires more frequent administration. Primobol 100 mg contains the enanthate form.
Is Primobol 100 mg a good stacking compound?
In bodybuilding contexts, methenolone enanthate is commonly stacked during cutting cycles with other non-aromatizing compounds. Because it does not aromatize, it does not provide estrogenic support, and users often consider how this affects overall hormonal balance when combining it with other compounds. British Dragon offers related products such as Stanabol 50 that are also referenced in cutting contexts.
Is 400 mg of Primobol a week a lot?
A milligram amount cannot be classified as appropriate or excessive without considering individual factors, experience level, and goals. In bodybuilding contexts, 400 mg per week falls within commonly referenced ranges for experienced users, but this does not establish that it is safe or appropriate for any individual. Non-medical use falls outside approved indications.
What strength is Primobol 100 mg?
Primobol 100 mg is labeled at 100 mg of methenolone enanthate per mL. It is supplied in a 10 mL vial, giving 1,000 mg of total labeled methenolone enanthate content per vial.
Does Primobol 100 mg aromatize?
No. Methenolone is derived from dihydrotestosterone and does not aromatize to estrogen. This means it is not associated with estrogenic side effects such as gynecomastia or water retention. This characteristic distinguishes it from testosterone-based compounds.
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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
British Dragon Pharmaceuticals
Product Information Compound Details
Active Substance Oxandrolone Anavar · 17α-Alkylated Oral Anabolic Steroid
10 mgStrength 10 mg/tablet
Package 100 Tablets 1,000 mg Total Labeled Content
Form Oral Tablets
Drug Class Anabolic-Androgenic Steroid
Estimated Half-Life Approximately 9–10 Hours
Manufacturer British Dragon
Lab Tested
British Dragon Pharmaceuticals
Product Information Compound Details
Active Substance Testosterone Cypionate Long-acting testosterone ester
250 mg/mLStrength 250 mg/mL
Package 10 mL Vial 2,500 mg total labeled content
Form Oil-Based Injectable
Estimated Half-Life Approximately 8 Days
Drug Class Androgen & Anabolic Steroid
Manufacturer British Dragon
Lab Tested
British Dragon Pharmaceuticals
Product Information Compound Details
Active Substance Testosterone Enanthate Long-acting testosterone ester
250 mg/mLStrength 250 mg/mL
Package 10 mL Vial 2,500 mg total labeled content
Form Oil-Based Injectable
Estimated Half-Life Approximately 7–9 Days
Drug Class Androgen & Anabolic Steroid
Manufacturer British Dragon