Anadrol-50

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Anadrol-50

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Treatment option: Anemia, Myelofibrosis, Folic Acid

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Anadrol-50

Quick Facts

Property Description
Active ingredient Oxymetholone (INN)
Form Oral Tablet
Pharmacological class Androgen and Anabolic Steroid (AAS)
Common use Stimulating red blood cell production
Origin Synthetic derivative of testosterone

What is Oxymetholone (Anadrol-50)?

Anadrol-50 is the brand name for the pharmaceutical product whose active ingredient is Oxymetholone, which is formulated as an oral tablet. The compound is officially classified as an agent for systemic use and is defined as a potent synthetic derivative of testosterone, making it a member of the Androgens and Anabolic Steroids (AAS) pharmacological class. Oxymetholone is one of the few AAS compounds that remains available for medical use in the United States, a status clinically recognized for its enduring therapeutic relevance for specific patient needs.

Anadrol-50's Pharmacological Class and Origin

Oxymetholone is chemically characterized as a 17alpha-alkylated anabolic-androgenic steroid, a structural design that is pharmacologically essential to enable the substance to resist rapid breakdown in the liver. This modification is key to formulating the medicine as an oral solid preparation for systemic absorption. As an anabolic agent, the medicine is designed to interact with androgen receptors, leading to significant metabolic effects. Its classification as an anabolic agent is a crucial part of its definition, confirming its place as a potent 17alpha-alkylated anabolic-androgenic steroid. The substance's potent nature necessitates its status as a prescription-only (Rx) medicine.

The General Purpose of Anadrol-50

The general therapeutic purpose of Oxymetholone is to promote the building of body tissue and to specifically stimulate the production of red blood cells. The medication primarily achieves this by directly stimulating the process of erythropoiesis, which is the mechanism that creates red blood cells. A typical use scenario involves its application in patients with severe deficiencies in red cell production. By enhancing the body's capacity to produce these vital oxygen carriers, the medicine helps improve systemic conditions, while the secondary anabolic effects provide supportive tissue maintenance.

What side effects are possible with Anadrol-50?

Possible Side Effects and Safety Information

Anadrol-50 (oxymetholone) is an anabolic-androgenic steroid associated with significant safety concerns, particularly regarding hepatotoxicity and virilization.

Serious and Clinically Significant Risks

  • Hepatotoxicity: Use, especially long-term, has been associated with serious, life-threatening liver conditions. These include peliosis hepatis (blood-filled cysts in the liver and spleen) and hepatic tumors (hepatocellular neoplasms, both benign and fatal malignant tumors). Cholestatic jaundice and hepatic necrosis have also been reported. Discontinuation of the drug often leads to the disappearance of these lesions.
  • Cardiovascular Changes: The drug can cause adverse changes in blood lipids, including decreased High-Density Lipoprotein (HDL) and increased Low-Density Lipoprotein (LDL), which may raise the risk of atherosclerosis and coronary artery disease.
  • Virilization in Females: Women may develop masculinizing effects, such as a deepened voice, hirsutism, acne, and clitoral enlargement. These changes may be irreversible, and the drug should be stopped at the first sign of mild virilization.

Contraindications and Safety Restrictions

Anadrol-50 is formally contraindicated in patients with:

  • Carcinoma of the prostate or male breast cancer.
  • Carcinoma of the female breast with hypercalcemia.
  • Pregnancy (Category X: risk of fetal harm).
  • Severe hepatic dysfunction.
  • Nephrosis or the nephrotic phase of nephritis.

Children and adolescents require careful monitoring due to the risk of premature epiphyseal closure (stunting growth). Patients using anticoagulants may require dose adjustment, as this drug can suppress clotting factors and increase the risk of bleeding.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documentation emphasizes that any suspected overdosage with Oxymetholone (Anadrol-50) requires immediately contacting a Poison Control Center or seeking emergency medical attention. The primary concern regarding overexposure is the potential for severe, progressive hepatotoxicity, a risk inherent to this class of medication.

Officially documented clinical manifestations associated with overexposure and toxicity include signs of hepatic dysfunction, such as jaundice (yellowing of the skin or eyes), upper abdominal pain, nausea, and vomiting. Continued administration after the onset of these signs is linked to severe, life-threatening outcomes, including hepatic coma and, rarely, death.

Official Management and Considerations

Classification Regulatory Statement
Antidote Status No specific antidote is known for acute overdosage.
Management Approach Treatment is officially described as symptomatic and supportive, and may include diuretics to manage severe edema.
Monitoring Periodic liver function tests are required to monitor hepatic status.

Furthermore, the label notes specific population risks: virilization in female patients may become irreversible if the drug is not discontinued promptly, and overexposure in children carries the risk of premature epiphyseal closure (stunted growth). Immediate discontinuation is mandated upon evidence of these mild symptoms.

Therapeutic Uses of Anadrol-50

What Anadrol-50 Treats: Main Uses and Benefits

This medication is primarily used to address serious hematologic deficiencies, which are conditions presenting with systemic or localized discomfort due to an insufficient production of red blood cells. The therapeutic benefit is associated with the support of red blood cell production, which helps manage low red cell counts and increase hemoglobin. This targeted action assists with maintaining functional stability, which may help lessen severe, chronic symptoms like pronounced fatigue and generalized weakness. The drug is commonly used across conditions presenting with these challenges, including certain forms of acquired aplastic anemia, congenital aplastic anemia, and myelofibrosis.

The medication is also applied in clinical scenarios involving severe, involuntary weight loss and the breakdown of lean body mass, often termed chronic wasting syndrome or cachexia. This use is considered relevant for managing symptoms that create noticeable functional strain in patients with debilitating diseases. Its application is relevant for managing symptoms related to muscle and tissue depletion; the treatment helps to manage symptoms related to ongoing tissue catabolism and contribute to the maintenance of lean body mass, supporting patients during episodes of heightened discomfort.

“The therapeutic use of this medicine is aligned with domains involving significant symptom expression, offering supportive relief when symptoms interfere with routine activities.”


Quick Fact: Relief for Fatigue and Wasting

Property Description
Primary Focus Conditions characterized by systemic imbalance due to low red cell counts.
Symptom Eased Pronounced fatigue and symptoms related to physical discomfort.
Clinical Benefit Assists with maintaining functional stability and supports lean body mass.
Relevant Scenarios Relevant in clinical settings involving chronic hematologic disorders and severe catabolic states.

Eligibility and Restrictions for Use

Who Can and Cannot Use Anadrol-50?

Eligibility for using Anadrol-50 (Oxymetholone) is strictly defined by regulatory contraindications and population restrictions.

Contraindicated Populations (Must Not Use)

The medicine is absolutely contraindicated in patients with known or suspected carcinoma of the prostate or male breast. It must also not be used in women with breast carcinoma and hypercalcemia. Due to the risk of fetal harm, Anadrol-50 is strictly prohibited in pregnant women (Pregnancy Category X). Use is also contraindicated in patients with severe liver dysfunction or nephrosis (or the nephrotic phase of nephritis).


Age-Group and Conditional Use

Population Group Eligibility Status
Pediatric Patients Safety and effectiveness are not established; use is restricted.
Geriatric Patients Insufficient data available to determine differential response.
Nursing Mothers Use is conditional; requires a decision to discontinue nursing.
Patients with Cardiac/Renal Disease Use requires caution due to the risk of fluid retention.

Eligibility is limited to adults with the specific labeled hematologic conditions and requires caution in those with pre-existing cardiac or renal disease.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory information for Oxymetholone (Anadrol-50) details specific interaction patterns with co-administered medications, primarily centered on effects on coagulation and fluid balance.

Key Documented Drug Interactions

Category Official Interaction Statement
Oral Anticoagulants May increase patient sensitivity to these medicines, potentially leading to an increase in Prothrombin Time (PT) and/or International Normalized Ratio (INR).
Adrenal Cortical Steroids / ACTH Concomitant use may result in an additive risk of edema (fluid retention).
Oral Hypoglycemic Agents Dosage adjustments for these agents may be necessary for diabetic patients.

The interaction with oral anticoagulants, such as Warfarin, is classified as clinically significant. This necessitates close monitoring of blood clotting parameters, as the required anticoagulant dosage may need to be decreased to maintain the intended PT or INR.

The potential for additive edema when Oxymetholone is used with Adrenal Cortical Steroids is highlighted as a serious concern for specific patient populations. This risk is particularly noted for individuals with pre-existing cardiac, renal, or hepatic disease. The regulatory documents do not list any specific medicinal products that are formally classified as contraindicated combinations due solely to drug-drug interaction risk. No mandatory timing separation rules are documented for the administration of Oxymetholone and other products.

Mechanism of Action

How Anadrol-50 Works — Mechanism of Action

Androgen Receptor Agonism and Gene Transcription

The active ingredient in Anadrol-50, oxymetholone, acts as an agonist of the Androgen Receptor (AR), a nuclear receptor found in tissues like skeletal muscle and bone marrow. This binding initiates a genomic cascade where the drug-receptor complex translocates into the cell nucleus. The complex then modulates gene transcription by binding to DNA, which alters the production rate of specific proteins. This domain initiates the sequence leading to a positive nitrogen balance.

Protein Synthesis and Nitrogen Balance

This alteration in gene transcription directly enhances the synthesis of structural and contractile proteins while simultaneously minimizing their catabolism (breakdown). By promoting the retention of nitrogen within muscle tissue, this mechanism results in skeletal muscle hypertrophy (growth) and a corresponding increase in muscle contractile protein mass.

Stimulation of Erythropoiesis

A distinct physiological outcome of this AR agonism is the stimulation of the hematopoietic system, particularly in the bone marrow. This effect promotes the production and release of Erythropoietin (EPO), which stimulates the formation of red blood cells. This mechanistic domain leads to higher hemoglobin and hematocrit levels, thereby increasing the blood's capacity for oxygen transport.

Dosage and Administration Information

The administration of Anadrol-50 (Oxymetholone) is strictly through the oral route, as the medicine is formulated solely as a 50 mg tablet. The official dosage is determined by the patient's body weight, with the standard regimen established in the range of 1 to 5 mg/kg of body weight per day, calculated on a daily basis. The total calculated dose is typically administered once daily but may be taken in divided doses, supporting flexibility in the administration schedule.

A key procedural constraint involves the duration of the initial therapeutic course, which mandates a minimum trial period of three to six months before the effectiveness of the treatment is formally assessed. Following remission, patients may require a continued maintenance dose, particularly in cases of congenital conditions.

Administration must follow specific contextual guidelines, including the requirement that the medicine must not replace essential supportive measures, such as necessary blood transfusions or the correction of nutritional deficiencies. Furthermore, proper use is dependent on ongoing medical supervision, which necessitates frequent, periodic laboratory monitoring of values, including hemoglobin and hematocrit, which guide appropriate dosage adjustments. In specific populations, such as older adults, dosage initiation is advised to be cautious, starting at the low end of the official dosing range.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Anadrol-50


Evidence for Use in Anemias Caused by Deficient Red Cell Production

Research exploring oxymetholone for anemias caused by deficient red cell production includes studies based on observational studies and retrospective cohort analyses of patients treated over time, along with a limited number of older case series. The research examined specific populations, including both adults and children, who had severe conditions such as aplastic anemia and various other bone marrow failure syndromes.

The studies monitored specific outcomes, including measured shifts in red blood cell counts and hemoglobin levels, and tracked the status of transfusion independence. Studies reported measurements of various hematologic outcomes, noting patterns observed in blood cell parameters among some of the patients. Research documented this evidence, providing context on symptom patterns and how blood measures evolved in the studied populations.

However, the body of evidence relies heavily on older clinical data and retrospective studies. This means there is a limited landscape of large, modern Randomized Controlled Trials (RCTs) available for direct comparison. The data for certain groups remain insufficient, and the results apply only to the specific populations and conditions studied.

Evidence for Use in Wasting Syndrome (Cachexia associated with AIDS)

Research has explored oxymetholone in the context of wasting syndrome associated with Acquired Immunodeficiency Syndrome (AIDS). The research includes double-blind, randomized, placebo-controlled clinical trials focusing on adults who had experienced significant, involuntary weight loss. Researchers monitored changes in body composition, measuring Lean Body Mass (LBM) and Body Cell Mass (BCM), along with subjective patient-reported outcomes describing appetite and perceived discomfort.

Clinical trials reported specific measurements related to changes in body composition, tracking how lean body mass evolved during the study period. Studies documented patterns related to measured body weight shifts observed in the studied populations during the controlled treatment phase. Research provided insight into short-term changes, but does not determine whether an individual will respond similarly.

Long-Term Research and Durability of Outcomes

Research has tracked overall survival rates in patients with anemias, with some follow-up extending for five years or more. This evidence provides context but not individual predictions regarding the durability of a response. However, long-term effects are not fully established across all research areas, and there is limited information about what happens after treatment is discontinued.

Key Limitations and Areas of Uncertainty

The research highlights what is known and what is still uncertain about this medicine. A primary limitation is that the overall evidence quality varies across studies, with a significant reliance on older research and observational data for the anemia indication. Comparative evidence is lacking. The research base provides limited information for structural comparison against current treatment strategies. Furthermore, sample sizes were modest in many of the key studies, and data for certain groups, especially regarding long-term outcomes, remain insufficient.

Frequently Asked Questions (FAQ)

Common questions about Anadrol-50 (FAQ)


Q: How quickly does Anadrol-50 typically start working after starting treatment?

Official documents advise that the response to Anadrol-50 treatment is typically not immediate. A minimum trial period, generally lasting three to six months, is generally established before a healthcare provider formally assesses the medicine's effectiveness.


Q: Is Anadrol-50 used for any conditions besides anemia?

While the primary labeled use is for anemias caused by deficient red cell production, official research has also examined the use of oxymetholone. This research includes studies focusing on wasting syndrome (cachexia) associated with Acquired Immunodeficiency Syndrome (AIDS).


Q: Is it common to experience water retention when using this medicine?

Regulatory warnings state that this medicine, like other anabolic steroids, can cause sodium and water retention, leading to edema (swelling). This fluid retention may result in visible swelling, particularly in the hands, ankles, or feet.


Q: What are the most commonly reported liver-related side effects?

Commonly reported effects on the liver include reversible changes in liver function tests, such as increases in certain serum enzymes. However, official information also warns about the risk of serious, potentially life-threatening liver conditions associated with long-term use.


Q: Does Anadrol-50 affect blood pressure?

Official labeling indicates the need for caution in populations with pre-existing heart or kidney conditions because the medicine is associated with a risk of fluid and electrolyte retention. This fluid retention (edema) can contribute to cardiovascular effects.


Q: Is the side effect profile of Anadrol-50 different for men and women?

Yes, the side effect profile includes effects that are specific to biological sex. For women, the risk of virilization (masculinizing effects) is a concern, which can include voice deepening. For men, effects such as gynecomastia (breast swelling) and changes in erections are noted in the regulatory labeling.


Q: Why is Anadrol-50 sometimes described as a C-17 alpha alkylated compound?

The term refers to a specific chemical modification in the drug's structure. This change is pharmacologically essential because it allows the substance to resist rapid breakdown by the liver, enabling it to be effective when taken orally as a tablet.


Q: Is it necessary to take Anadrol-50 at the exact same time every day?

Official patient guidance indicates that the medicine should be taken at regular intervals to ensure consistent drug levels in the body. While a specific exact time may not be mandated, consistent timing supports the maintenance of therapeutic effects.


Q: What happens if a person misses a dose of Anadrol-50?

Regulatory patient information describes the procedure if a dose is missed: the dose may be taken as soon as possible. If it is nearly time for the next scheduled dose, regulatory guidance indicates that the missed dose should be skipped entirely.


Q: Are there specific symptoms that require immediate medical attention while using Anadrol-50?

The regulatory label lists signs that warrant immediate contact with a healthcare professional. These include jaundice (yellowing of the skin or eyes), dark urine, clay-colored stools, or unusual upper stomach pain.


Q: Is there evidence of Anadrol-50 causing changes in mood or behavior?

The regulatory labeling lists effects on the central nervous system (CNS). These effects include excitation and insomnia (difficulty sleeping), and changes in libido (sex drive) have also been reported.


Q: Is Anadrol-50 a prescription-only medicine?

Yes, Anadrol-50 (oxymetholone) is classified as a Schedule III controlled substance. Due to its potent anabolic properties and defined potential for abuse, its availability is restricted to prescription (Rx) status.


Q: What are the signs of liver problems that patients should look out for?

Official labeling describes specific signs of potential liver problems. These include yellowing of the skin or eyes (jaundice), having unusually dark urine, producing clay-colored stools, or experiencing unusual upper stomach pain.


Q: What is the maximum duration of treatment usually described in official guidelines?

Official documents state that therapy is intended to be continuous. While a minimum trial period is specified, the label does not specify a maximum duration, indicating that patients may require a continued maintenance dose after achieving remission.


Q: What is the reason Anadrol-50 is generally restricted for use in children?

The medicine is restricted in children primarily due to the risk of premature epiphyseal closure. This is the medical term for the early closing of the growth plates, which can result in the stunting of growth and compromised final adult height.


Q: Does Anadrol-50 interact with commonly prescribed diabetes medications?

Yes, the medicine may alter blood sugar levels and glucose tolerance. Official warnings indicate that dosage adjustments for insulin or oral diabetes medications may be necessary for patients with diabetes.


Q: Does Anadrol-50 show up on standard drug tests?

As an anabolic-androgenic steroid, the active ingredient (Oxymetholone) is a controlled substance. The substance is a known substance detectable through protocols used for performance-enhancing drugs and controlled substances.


Q: Is there a risk of developing dependence on Anadrol-50?

Anadrol-50 is classified as a Schedule III controlled substance under the Controlled Substances Act. This classification indicates that the medicine has a defined potential for abuse.


Q: Are there any contraindications related to prostate issues?

Use is absolutely contraindicated in patients with known or suspected prostate cancer. Official labeling states that the drug carries a caution risk in male patients with or predisposed to prostatic enlargement (Benign Prostatic Hyperplasia or BPH).


Q: Is Anadrol-50 known to affect fertility in men or women?

In men, official labeling notes that the medicine has been associated with effects on testicular function, potentially leading to a decrease in sperm count (oligospermia) at higher doses. In women, the hormonal changes may cause menstrual irregularities.

How should Anadrol-50 be stored and disposed of?

Official Storage Requirements

Anadrol-50 (oxymetholone) tablets must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F and 77 F). The official labeling permits temporary excursions between 15 C and 30 C. The tablets must be stored in a tight, light-resistant container to protect product integrity and stability. It is officially mandated that the medicine must be stored out of the reach of children.

Disposal of Controlled Substance

As Anadrol-50 is classified as a Schedule III controlled substance, its disposal requires specific procedures. The preferred method for discarding unused or expired tablets is through an authorized drug take-back program. If a take-back program is unavailable, the alternative is to mix the tablets with an undesirable substance (such as dirt) and place the mixture in a closed container before disposal in household trash. The medication is not on the list of products recommended for flushing down a toilet or sink.

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

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