Finaject
Active Substance: Finaject
Description
Finaject (Trenbolone Acetate)
Finaject is a brand name for the anabolic-androgenic steroid (AAS) trenbolone acetate. It was originally developed for veterinary use, specifically in the livestock industry, to promote muscle growth and feed efficiency in cattle. It is not approved for human use, but it is used by some athletes and bodybuilders for physique and performance enhancement.
Other Names
Trenbolone acetate is also known by other names, including:
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Finaplix
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Finajet
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Tren A
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RU-1697
Side Effects and Risks
The use of trenbolone acetate is associated with a wide range of significant side effects, many of which can be severe and long-lasting. These include, but are not limited to:
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Androgenic Side Effects: These are related to the drug's potent androgenic properties. They can include oily skin, severe acne, increased facial and body hair growth, and accelerated male-pattern baldness.
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Cardiovascular Issues: Trenbolone can negatively impact cardiovascular health by increasing blood pressure, raising "bad" LDL cholesterol, and lowering "good" HDL cholesterol. This can increase the risk of heart attack, stroke, and other cardiovascular diseases.
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Hormonal Imbalances: Trenbolone use can suppress natural testosterone production, leading to testicular atrophy, decreased libido, and infertility. It does not aromatize into estrogen, so estrogenic side effects like gynecomastia are not a direct result of trenbolone itself, but can occur due to the hormonal imbalances it creates.
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"Tren Cough": A common, and often violent, coughing fit that can occur shortly after an injection.
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Psychological Effects: Users may experience changes in mood and behavior, including increased aggression ("roid rage"), anxiety, depression, and paranoia.
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Organ Damage: Long-term use can lead to severe liver or kidney disease.
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Other Side Effects: Insomnia, night sweats, headaches, and shortness of breath.
Benefits (in the context of unapproved use)
For athletes and bodybuilders who use it, the perceived benefits of trenbolone acetate include:
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Significant Muscle Growth: Trenbolone is highly effective at promoting protein synthesis and increasing muscle mass.
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Increased Strength: Users often report dramatic increases in strength.
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Improved Definition: Because it does not cause water retention, it can lead to a "harder" and more defined muscular appearance.
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Fat Loss: It can aid in the reduction of body fat.
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Increased Appetite: In some cases, it can stimulate appetite.
Pros and Cons
Pros:
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Potent anabolic effects for rapid muscle and strength gains.
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Does not aromatize into estrogen, avoiding related side effects like water retention and gynecomastia (though other hormonal issues can arise).
Cons:
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Severe and potentially life-threatening side effects.
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Not approved for human use, meaning no established medical guidelines for dosage or safety.
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Can cause significant hormonal disruption, including suppression of natural testosterone.
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Legal risks associated with its black-market status in many countries.
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Can lead to serious psychological side effects.
Dosage and Frequency
Since Finaject is not approved for human use, there are no medically established dosages or frequency guidelines. Dosages and cycles are based on anecdotal information and black-market practices, which can vary widely and carry significant health risks. In the livestock industry, it is administered via subcutaneous implants in the ear.
Half-Life and Detection Time
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Half-Life: The half-life of trenbolone acetate is relatively short, approximately 1-3 days. This means it is cleared from the body more quickly than longer-acting trenbolone esters like trenbolone enanthate.
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Detection Time: Despite its short half-life, the metabolites of trenbolone acetate can be detected in the body for an extended period. Detection times can vary based on individual metabolism, dosage, and the type of drug test used (e.g., urine, blood, or hair). Detection in urine can last for weeks or even months.
Sterogenic, Progestogenic, and Prolactin Effects
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Androgenic/Anabolic Effects: Trenbolone is an extremely potent androgen and anabolic steroid. It binds strongly to the androgen receptor, leading to powerful muscle-building (anabolic) and masculinizing (androgenic) effects.
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Progestogenic Effects: Trenbolone is known to have potent progestogenic activity. It can bind to the progesterone receptor, which can contribute to side effects like gynecomastia (in some cases, by increasing sensitivity to any existing estrogen) and the suppression of natural hormone production.
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Prolactin Effects: Trenbolone can also increase prolactin levels, a hormone that can lead to side effects such as galactorrhea (lactation in males), erectile dysfunction, and decreased libido. High prolactin levels are often associated with the progestogenic activity of the drug.
Anabolic-Androgenic Ratio
The anabolic-androgenic ratio is a measure of a steroid's anabolic (muscle-building) effects compared to its androgenic (masculinizing) effects. The ratio for trenbolone is often cited as a significant number, and it is known to be much higher than testosterone's 1:1 ratio. While sources may vary, the anabolic-androgenic ratio for trenbolone is considered to be 500:500 or higher. This indicates that it is a highly potent steroid for both muscle-building and androgenic effects.
Pharmacological Properties
Half Life
1 days
Active Dose
87%
Detection
5.00 days
Concentration
250 mg/ml
Anabolic/Androgenic Profile
Usage Effectiveness
Activity Profile
Estrogenic
None
Progestanic
None
Water Retention
None
Aromatization
No
Benefits
Dosage Recommendations
Beginner
200-400 mg/week
Intermediate
400-600 mg/week
Advanced
600-800 mg/week
Evidence-based planning resources
Dive deeper into Finaject cycle design, stacking options, and harm-reduction checklists available inside Anabolic Planner.
- Finaject compound database overviewCompare Finaject with other steroid agents in the structured compound index.
- Finaject stack and cycle templatesReview evidence-based cycle outlines, dose progressions, and PCT pairings that incorporate Finaject.
- Harm-reduction guide for FinajectRefresh safety monitoring, lab work, and countermeasure strategies tailored for Finaject protocols.
Peer-reviewed reference material
Validate mechanisms, contraindications, and regulatory guidance for Finaject with trusted clinical databases.
- Finaject clinical research on PubMedSearch peer-reviewed human and veterinary studies discussing efficacy, endocrine impact, and contraindications.
- Finaject pharmacology via Drug Information PortalReview mechanisms, synonyms, regulatory status, and toxicology summaries from the U.S. National Library of Medicine.
Side Effects
Common
Severe
Safety Information
Liver Toxicity
None
Kidney Toxicity
Low
Cardiovascular Risk
Moderate
Disclaimer: This information is for educational purposes only. Always consult with a qualified healthcare professional before using any compounds.