Menabol

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Menabol

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Menabol

Property Description
Active ingredient Stanozolol
Form Oral tablet, Aqueous suspension (Injectable)
Pharmacological class Synthetic Anabolic Androgenic Steroid (AAS)
General purpose To promote tissue building and counteract muscle wasting
Origin Synthetic derivative of Dihydrotestosterone (DHT)

What is Menabol and What Class of Drug is Stanozolol?

Menabol is the commercial designation for a medication containing the active compound Stanozolol, which is categorized as a potent Synthetic Anabolic Androgenic Steroid (AAS). This substance is structurally derived from the natural hormone Dihydrotestosterone (DHT), with modifications designed to enhance its tissue-building effects. Its classification as an anabolic agent is recognized by international bodies, confirming its role in medicine for supportive therapy.

The chemical profile of Stanozolol is notable for the inclusion of a 17alpha-alkyl group. This modification is critical as it confers high oral bioavailability, allowing the substance to be reliably absorbed and active when administered by mouth. This structural design is clinically recognized for providing high efficacy via the oral route, which distinguishes it from many other steroids that require intramuscular delivery. Its classification within the anabolic steroid category highlights its application in increasing protein synthesis. This means the drug helps the body prioritize building and retaining necessary proteins and tissues.

Composition, Forms, and General Therapeutic Purpose

Menabol is generally formulated as a single-ingredient product, most commonly encountered as an oral tablet for systemic delivery, which is its characteristic form, although the compound also exists as an aqueous suspension for intramuscular administration. The general therapeutic intent of the compound focuses on capitalizing on its ability to stimulate key metabolic processes, specifically enhancing protein synthesis and promoting a positive nitrogen retention balance in the body.

Anabolic steroids possess the ability to produce anabolism and nitrogen retention even under conditions where a high rate of tissue breakdown is occurring. This suggests that the medicine works fundamentally to help stop the body from breaking down vital tissue faster than it can rebuild it. This unique physiological capacity renders it generally useful for reversing conditions characterized by severe muscle wasting or weakness, offering a restorative benefit by promoting anabolism over catabolism.

What side effects are possible with Menabol?

Possible Side Effects and Safety Information

Menabol (stanozolol) is classified as an Anabolic Androgenic Steroid (AAS), and its safety profile, as outlined in official regulatory documents, is defined by critical risks primarily affecting the hepatic and endocrine systems.

Serious Adverse Reactions and Hepatic Risk

Treatment with stanozolol has been associated with serious adverse reactions impacting the liver. These effects include cholestatic jaundice, and, rarely, hepatic necrosis. Of most significant concern is the documented association with potentially life-threatening conditions such as peliosis hepatis (blood-filled cysts) and hepatocellular neoplasms (tumors), often reported with long-term therapy.

Systemic and Common Effects

The regulatory label documents adverse reactions across several System-Organ Classes.

System Common Effects Listed in Official Documents
Dermatologic/CNS New or worsening acne, headache, insomnia
Metabolic/Endocrine Changes in sexual desire (libido), decreased glucose tolerance
Fluid/Cardiovascular Edema (swelling) and fluid retention, potentially aggravating congestive heart failure

Population-Specific Constraints

The most specific safety considerations are for certain populations. In female patients, the risk of virilization (masculinizing effects) is noted, including voice deepening and clitoral enlargement, some of which may be irreversible. In prepubertal children, a critical safety constraint is the potential for premature closure of epiphyses (growth plates), which can compromise final adult stature. The drug is contraindicated in pregnant women due to the risk of birth defects, and in patients with known prostate cancer or severe hepatic dysfunction.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Menabol (Stanozolol) overdose focuses on the acute toxicological risk classification and mandated emergency action, as documented by governmental and intergovernmental sources.

Feature Official Regulatory Statement
Acute Symptoms Acute overdosage may result in manifestations such as nausea and gastrointestinal upset. Official documents often note a lack of known specific acute symptoms.
Severity Classification Acute intoxication is generally classified as unlikely to threaten life and poses no serious risk from acute poisoning.
Long-Term Exposure Excessive exposure may be associated with abnormal biochemical tests of liver function; chronic overdosage of the androgen class may present with signs like polycythaemia or priapism.

Emergency Action and Required Management

Upon the suspicion of an overdose, regulatory guidance mandates that individuals seek immediate medical attention and contact an emergency room or poison control center for advice. This action is required regardless of the acute toxicological classification. The necessary clinical response is confined to symptomatic and supportive care, as there is no specific antidote known for Stanozolol. If chronic overdose symptoms are present, discontinuation of treatment and monitoring of liver function tests are regulatory requirements.

Therapeutic Uses of Menabol

What Menabol Treats: Main Uses and Benefits

The medication is used to provide supportive relief in specific, challenging medical contexts. Stanozolol is considered relevant in the management of hereditary angioedema (HAE), wasting associated with chronic illness, and specific types of anemias.

The medication's therapeutic benefit is commonly used across domains where additional symptomatic support is needed. It helps address symptom clusters that may become intense or disruptive, such as unpredictable swelling episodes, significant physical debility, and chronic fatigue and weakness linked to systemic imbalance. This supportive role is particularly relevant in clinical settings that involve acute or unstable symptom patterns, offering symptomatic relief that helps patients cope more steadily with difficult episodes.

“The therapeutic benefit supports patients by helping to ease the symptom burden associated with the frequency and intensity of these attacks.”

It contributes to improved day-to-day comfort and stability during periods of convalescence or long-term disease management.


Quick Fact: Support for Symptom Management The medication is commonly used to help with symptoms related to systemic imbalance leading to wasting, and is applied in the symptomatic management of recurrent, severe swelling in patients with HAE.

Eligibility and Restrictions for Use

Menabol (Stanozolol) eligibility is determined by strict official regulatory criteria, primarily defined by contraindications and conditions requiring close monitoring. The medicine is generally permitted for adults with the officially approved therapeutic indications.

Contraindicated Populations

Use is absolutely prohibited for the following populations as stated in regulatory labels:

  • Women who are pregnant (due to definite fetal risk).
  • Men with known or suspected carcinoma of the prostate or carcinoma of the breast.
  • Women with breast carcinoma and concurrent hypercalcemia.
  • Patients with nephrotic syndrome or known hypersensitivity to Stanozolol.

Restricted or Conditional Use

Use is highly restricted or requires caution and close monitoring in patients with specific comorbidities:

  • Hepatic or Renal Disease: Requires monitoring, as the drug can pose risks, especially to liver function.
  • Cardiovascular Conditions: Patients with pre-existing heart or blood vessel disease must be monitored due to the risk of fluid retention.
  • Pediatric Patients: If used, children require mandated monitoring of bone age due to the risk of premature closure of epiphyses. Use in geriatric patients also requires caution, particularly for prostatic concerns in males.

What should I know about interactions with other medicines?

Menabol, which contains Stanozolol, is documented in regulatory sources as interacting with several medicinal product classes, primarily through pharmacodynamic potentiation and metabolic effects. These interactions result in necessary constraints on co-administration management, requiring increased monitoring.

Interactions Affecting Co-Administered Drug Exposure

The co-administration of Menabol with Oral Anticoagulants (such as Warfarin) is a clinically significant interaction. Stanozolol is officially described as increasing sensitivity to these agents, a pharmacodynamic effect that results in an elevated prothrombin time (PT). This alteration of clotting status requires that the dosage of the co-administered anticoagulant may need to be decreased to maintain a desired therapeutic level.

Similarly, an interaction occurs with Antidiabetic Agents, including Insulin and oral hypoglycemics. Regulatory documentation notes that the drug's metabolic effects may lower blood glucose. For diabetic patients, this interaction requires closer monitoring of blood sugar and potential adjustment of the antidiabetic regimen.

Pharmacodynamic and Laboratory Test Interactions

Concurrent use with Adrenal Cortical Steroids or ACTH (Corticosteroids) is associated with an increased risk or severity of fluid retention (edema).

Stanozolol also causes a documented drug-laboratory test interference involving thyroid function assays. The official record indicates that the substance decreases the level of thyroxine-binding globulin (TBG), which subsequently alters the interpretation of total T4 serum levels and T3 resin uptake results. No formal contraindicated combinations or mandatory administration timing separation rules are explicitly stated in the regulatory interaction profile.

Mechanism of Action

How Menabol Works

Menabol (stanozolol) modulates physiological processes through a dual mechanism: Androgen Receptor (AR) agonism and the modulation of key plasma protein synthesis in the liver. As an AR agonist, the drug binds to the intracellular receptor, and the complex translocates to the nucleus, altering gene transcription. This action promotes protein synthesis and a positive nitrogen balance in tissues, resulting in increased protein mass in skeletal muscle and bone. This mechanism also increases erythropoiesis (red blood cell production).

Separately, the drug enhances the production of C1-Esterase Inhibitor (C1-INH), a protein that regulates the Kallikrein-Kinin System. Increased C1-INH inhibits plasma kallikrein, limiting the generation of bradykinin, a potent mediator of vascular permeability. This leads to the reduction of fluid leakage from blood vessels, modulating local fluid dynamics. Furthermore, Menabol modifies systemic hemostatic balance by suppressing the synthesis of plasma proteins, including Sex Hormone-Binding Globulin (SHBG) and fibrinogen, while increasing systemic fibrinolytic activity.

Dosage and Administration Information

How Menabol Is Used: Official Administration Guidelines

Menabol, containing stanozolol, is administered according to a specific, structured schedule, primarily for long-term supportive therapy in conditions such as hereditary angioedema (HAE). The medication is typically used in two distinct phases and is available in forms for both oral and intramuscular administration.


Labeled Dosing and Administration Protocol

The standard approach involves a tiered dosing schedule that mandates a transition from an initial, higher dose to a lower, established maintenance dose.

Administration Component Official Labeled Instruction
Route of Administration Oral tablet or Intramuscular (IM) aqueous suspension.
Initial Adult Dose 2 mg administered three times daily (TID).
Maintenance Adult Dose 2 mg administered once daily (QD).
Dose Titration The dose must be gradually decreased at intervals of 1 to 3 months to achieve the minimal effective long-term level.
Intake Condition The oral tablet can be taken with or without food but should be taken with a full glass of water.
Older Adults Dosing Treatment initiation must be at the lowest possible dose for this population.

Procedural Summary

The treatment course begins with the initial, three-times-daily dosage before a controlled, multi-month titration period is executed to reach the once-daily maintenance dose. This procedural structure is intended for chronic prophylaxis. If a dose is missed, the standard procedure is to skip the missed dose if it is near the next scheduled time, and to not take a double dose to catch up.

Recent Clinical Evidence

Research evidence / Overview of Studies for Menabol

Menabol (Stanozolol) was studied in research exploring several medical conditions. The research available spans several decades and consists of various types of studies, from short-term trials to long-term observational follow-up. The available evidence base for Menabol is often viewed within the context of the time these studies were conducted and the specific patient groups they included.


Evidence for Use in Hereditary Angioedema (HAE)

Research has examined Menabol's role in managing Hereditary Angioedema (HAE), a condition characterized by fluctuating or episodic manifestations of severe swelling. The research structure for HAE includes long-term observational data.

Early research included Randomized Controlled Trials (RCTs), often using crossover designs, that was studied for short periods. These studies examined outcomes related to episodic or acute changes, such as monitoring the frequency and duration of HAE attacks. Researchers also monitored blood measurements, tracking levels and function of the C1-Inhibitor protein in studied individuals.

Long-Term Studies and Follow-up Durations

The evidence for HAE includes some of the longest follow-up durations available for Menabol. This long-term data details the long-term patterns observed in patients. These data are drawn from observational settings, including long-term patient record reviews. Comparative research against other treatments is limited.


Research on Supportive Therapy for Wasting Conditions

Menabol was evaluated in research exploring its use as a supportive therapy for conditions associated with chronic wasting or tissue-depleting processes.

The studies for this use often involved older Clinical Trials and historical Observational Studies that were used in research exploring short-term symptom changes. The research examined outcomes related to systemic or functional imbalance, which includes study of the compound's effect on tissue building. Researchers monitored key metabolic indicators, such as nitrogen retention, which is a physiological marker for anabolism. Studies also described patterns observed in changes to general body weight and lean body mass over several weeks to a few months.

For the general wasting indication, evidence is limited when compared to modern clinical trial standards. The data largely reflects the known pharmacology of the drug class. Follow-up durations were limited to short periods. Limited information is available for long-term outcomes regarding the maintenance of tissue mass or function in these diverse catabolic conditions. Furthermore, comparative evidence is lacking against current standards of care.

Key Studies & References Stanozolol and Danazol Have Different Effects on Hematopoiesis in the Murine Model of Immune-Mediated Bone Marrow Failure

Frequently Asked Questions (FAQ)

Common questions about Menabol (FAQ)


Q: Does Menabol use typically require special liver function monitoring?

According to official prescribing information, close monitoring of liver function is generally indicated during treatment. This is required because of the potential for serious adverse effects, including cholestatic jaundice (a type of liver damage) and liver tumors, especially with long-term use.


Q: How does Menabol affect the body's natural hormone balance, according to official information?

Official information indicates that the introduction of this substance may inhibit the release of the body's own testosterone. It can also suppress the natural production of sperm (spermatogenesis).


Q: What does the scientific literature say about Menabol's potential for androgenic side effects?

Regulatory documents note that the drug's androgenic (or masculinizing) activity is a known factor in its safety profile. This activity is associated with the risk of virilization (development of masculine features) in female patients and the premature closure of growth plates in children.


Q: Are there specific mental health side effects listed for Menabol?

The official adverse reactions list includes central nervous system (CNS) effects. These effects may include habituation, excitation, insomnia (trouble sleeping), and depression.


Q: Is it true that Menabol can affect cholesterol profiles?

Official drug documents state that this substance can affect blood lipid profiles, often referred to as cholesterol. Changes in lipid levels have been reported, specifically a decrease in high-density lipoproteins (HDL, or 'good' cholesterol) and an increase in low-density lipoproteins (LDL, or 'bad' cholesterol).


Q: Does the administration method (e.g., oral vs. injectable) of the active ingredient affect its safety profile?

The active ingredient in the oral form is a 17-alpha alkylated derivative. While this structure allows the drug to be effective when taken orally, this same chemical modification is associated with known risks to liver health.


Q: What official resources describe the safety warnings for Menabol?

All official safety warnings, precautions, and contraindications are described in the drug's approved professional label. In the United States, this information is published by the Food and Drug Administration (FDA) and available through resources like DailyMed.


Q: What are the key differences between the active ingredient in Menabol and standard testosterone? (Informational only)

The active ingredient in Menabol, stanozolol, is categorized as a synthetic anabolic-androgenic steroid. It is a derivative of dihydrotestosterone (DHT) and therefore differs chemically from standard natural testosterone.


Q: Is Menabol used in the treatment of anemia, according to official sources?

Official information notes that this substance has been historically used in the management of specific types of refractory anemia. This is due to the drug's documented ability to stimulate the production of red blood cells (erythropoiesis).


Q: What official body regulates the use and sale of Menabol?

In the United States, the use of the drug is regulated by the Food and Drug Administration (FDA). Furthermore, because of its potential for misuse, it is also classified as a Schedule III Controlled Substance by the Drug Enforcement Administration (DEA).


Q: How is the potential for dependence or misuse described in regulatory documents for Menabol?

The classification of this drug as a Schedule III Controlled Substance by U.S. regulatory bodies reflects its recognized potential for abuse. This classification places strict controls on its prescribing and dispensing.


Q: What are the general rules for discontinuing Menabol treatment? (Non-dosing)

Official guidance describes that treatment cessation should be gradual and should occur under the monitoring of a healthcare professional. This process is necessary to manage potential withdrawal symptoms that can occur when stopping an anabolic steroid.


Q: How long does Menabol stay in the system after the last dose?

Based on official pharmacokinetic data, the rate at which the active drug is eliminated varies by form. The half-life is approximately 9 hours for the oral tablet and approximately 24 hours for the intramuscular injection.


Q: Is Menabol available under any other brand names?

Yes, regulatory information confirms that the active ingredient stanozolol has been marketed under other brand names in the past. One well-known brand is Winstrol.

How should Menabol be stored and disposed of?

Storage and Disposal of Menabol (Stanozolol)

The storage of Menabol (Stanozolol) is guided by regulatory requirements due to its classification as a controlled substance. The medication must be kept in its original, tightly closed container and stored at room temperature, typically 20 C to 25 C. To maintain stability, the product requires protection from light, excess heat, and moisture.

Child-Safety and Security

Stanozolol must be stored out of the sight and reach of children and pets. Due to regulatory requirements for controlled substances, the medication should be kept in a locked cabinet or secure location to prevent unauthorized access.

Disposal Instructions

Unused or expired Menabol should be disposed of primarily through a drug take-back program. If this option is not available, the medication may be disposed of in household trash after being mixed with an undesirable substance and placed in a sealed container, following official guidance for non-flush list drugs. All personal information on the container must be removed before disposal.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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