Methenolone Acetate Injection

Product/Composition Methenolone Acetate Injection
Form Injections
Strength 100mg
Production Capacity 1 Million Injection/Month
Therapeutic use Hormones & Steroids
Package Insert/Leaflet Available upon request

Methenolone Acetate Injection is an anabolic-androgenic steroid (AAS) primarily used to promote muscle growth, improve nitrogen retention, and treat certain medical conditions associated with muscle wasting. It is a synthetic derivative of dihydrotestosterone (DHT) with relatively low androgenic activity compared to its anabolic effects.

Here are the key details:


1. Composition and Form

  • Active ingredient: Methenolone acetate.

  • Supplied as a sterile solution for intramuscular (IM) injection, usually in an oil base.

  • Typically available in single-dose ampoules or multi-dose vials.


2. Mechanism of Action

  • Binds to androgen receptors in muscle and other tissues.

  • Increases protein synthesis and nitrogen retention, promoting muscle growth.

  • Stimulates red blood cell production, which may improve oxygen delivery to tissues.

  • Exhibits low estrogenic activity, reducing the risk of water retention and gynecomastia compared to other anabolic steroids.


3. Indications

  • Historically used in medicine for:

    • Muscle wasting due to chronic illness or trauma.

    • Severe weight loss in patients with catabolic conditions.

    • Delayed puberty or hypogonadism in males (less common today).

  • Currently, it is largely used illegally or in bodybuilding contexts for performance enhancement.


4. Administration

  • Administered intramuscularly, usually every 1–2 weeks depending on dose.

  • Dosage is weight- and condition-dependent; in medical settings, it is lower than doses sometimes used for performance enhancement.

  • Should only be used under medical supervision due to potential side effects.


5. Side Effects

Androgenic effects:

  • Acne, oily skin.

  • Increased hair growth (body or facial).

  • Male pattern baldness in predisposed individuals.

Endocrine effects:

  • Suppression of natural testosterone production with long-term use.

  • Potential changes in libido or mood swings.

Other effects:

  • Rare liver toxicity compared to oral anabolic steroids, but caution is still advised.

  • Changes in cholesterol levels (reduced HDL, increased LDL).

  • Potential cardiovascular strain if misused at high doses.


6. Contraindications

  • Known hypersensitivity to methenolone or similar steroids.

  • Pregnancy and breastfeeding (can virilize female fetus or infant).

  • Active prostate or breast cancer in men.

  • Pre-existing liver or cardiovascular disease.


7. Precautions

  • Monitor liver function and lipid profile during prolonged therapy.

  • Avoid combining with other anabolic steroids or androgenic drugs without supervision.

  • Long-term or high-dose use can lead to endocrine disturbances.

  • Caution in adolescents due to risk of premature epiphyseal closure (growth plate fusion).


8. Storage

  • Store in a cool, dry place, protected from light.

  • Use aseptically; single-dose ampoules should be discarded after use.