Superdrol vs Oxymetholone: What to Choose and for Whom
"Superdrol or oxymetholone - which is better for gaining mass?" The editorial team receives such a query regularly. In this article we do not compare "effectiveness for mass gain" but answer the question of to whom these substances may be appropriate at all from a medical standpoint, for whom they are most dangerous, and how to protect yourself from hidden steroids in sports products.
A short answer from the editorial team
For a healthy person who trains for strength, shape, or competition, neither of these substances is a justified choice. Both belong to oral 17α-methylated anabolic steroids, both are banned by WADA, both are associated with a risk of liver injury.
The difference is that oxymetholone has a narrow medical use, determined by a hematologist, whereas superdrol (methasterone) was never a medicine and has no indications at all.
Therefore, the wording "what to choose" for this pair has only one correct interpretation: oxymetholone can be chosen by a doctor for a specific patient with a certain type of anemia, while superdrol is chosen by no one who relies on evidence-based medicine.
Below we develop this answer in more detail, because behind it lies an important logic for evaluating any substance: the presence of indications, safety data, quality control, and monitoring mechanisms.
Oxymetholone: a narrow medical niche
According to the Anadrol-50 label, oxymetholone is indicated for the treatment of anemias caused by insufficient production of red blood cells: acquired aplastic anemia, congenital aplastic anemia, myelofibrosis, and hypoplastic anemias associated with myelotoxic drugs. The label specifically notes that it does not replace other supportive measures, such as blood transfusions.
Oxymetholone was also studied as a means against wasting in HIV infection. A randomized study by Hengge and colleagues (2003) showed an increase in body weight but at the same time recorded a substantial increase in liver enzymes in some participants, which illustrates the price of such an effect.
Even in a medical context, therapy with oxymetholone requires regular monitoring of liver tests, lipids, and blood counts. The label directly warns about peliosis hepatis and liver tumors with long-term use.
Therefore, "for whom oxymetholone is suitable" is patients with specific hematological diagnoses, for whom a doctor has weighed the benefit and risk. Athletes and amateurs are not part of this group.
Superdrol: why there is no "for whom"
Methasterone appeared on the sports supplement market in the early 2000s and was sold without a prescription until regulators classified it as a controlled substance. No clinical trials establishing its safety or effectiveness were conducted.
The main scientific information about the effect of methasterone on humans is a description of clinical cases. Nasr and Ahmad (2009) reported severe cholestasis with kidney failure after taking Superdrol; similar cases have been described by other authors.
The absence of studies means that neither the safe limits, nor the frequency of side effects, nor the long-term consequences are known. That is why the editorial team cannot name any group of people for whom this substance would be appropriate.
An additional risk is that products with methasterone are often disguised as "prohormones" or "anabolic complexes" with obscure chemical names on the label.
Who is at the greatest risk
Summarizing the data from labels and reviews, the editorial team identifies the groups for whom oral methylated steroids are especially dangerous.
| Group | Why the risk is higher | What is important to know |
|---|---|---|
| People with diseases of the liver or bile ducts | 17α-methyl is associated with cholestasis | Even a slight increase in enzymes is a reason for examination |
| Those who consume alcohol or other hepatotoxic agents | Cumulative burden on the liver | Interactions are hard to predict |
| People with dyslipidemia, hypertension | Decrease in HDL, effect on blood pressure | A lipid panel and blood pressure monitoring are needed |
| Women | Virilization | A change in the voice can be irreversible |
| Adolescents | Disruption of growth and maturation | Androgens can close the growth plates |
| Competitive athletes | WADA ban (S1) | Risk of disqualification even because of a "supplement" |
The Spanish registry of drug-induced liver injury (Robles-Diaz et al., 2015) showed that injuries associated with illegal AAS were more often observed in young men, had a pronounced cholestatic character, and involved prolonged recovery.
Early symptoms of cholestasis - itchy skin, dark urine, light-colored stool, yellowing of the sclera - require immediate consultation with a doctor.
One should not forget the hormonal axis either: both substances suppress the production of LH and FSH, and hence of one's own testosterone, which can have long-term consequences for fertility.
How not to run into hidden steroids
Studies of the supplement market have repeatedly shown that some products contain undeclared anabolic substances. For a person who deliberately does not want to take steroids, this is a real threat.
- Beware of products with names like "prohormone," "methyl-," "dimethyl-," "-androstane-," "-etiocholanol" in the composition.
- Do not believe promises of "the effect of steroids without side effects."
- For competitive athletes, choose supplements with independent certification for the absence of doping.
- Buy from trusted sellers who can provide documentation for the product.
If the goal is gaining mass, the evidence-based tools are known: a caloric surplus, sufficient protein intake, strength training with progression, and recovery. Among supplements, the best evidence base belongs to creatine monohydrate (Kreider et al., 2017).
If you have already used similar products, it is reasonable to have liver tests done (ALT, AST, bilirubin, alkaline phosphatase, GGT), a lipid panel, and a hormonal profile, and to discuss the results with a doctor.
Editorial conclusions
Oxymetholone has a narrow medical niche - certain types of anemia under the supervision of a hematologist. Superdrol has no niche at all, because it has not undergone clinical trials, and the scientific literature about it consists mostly of reports of liver injury.
The greatest risk is faced by people with liver diseases, women, adolescents, those who have cardiovascular risk factors, and competitive athletes.
The best "choice" for gaining mass is evidence-based training, nutrition, and trusted supplements.
We also recommend the articles "Superdrol or Oxymetholone: what is the difference," about liver tests for athletes, and about creatine monohydrate.
References
- Anadrol-50 (oxymetholone) tablets. Prescribing information. U.S. Food and Drug Administration.
- Hengge UR, Stocks K, Faulkner S, et al. Oxymetholone for the treatment of HIV-wasting: a double-blind, randomized, placebo-controlled phase III trial in eugonadal men and women. HIV Clin Trials. 2003;4(3):150–163.
- Nasr J, Ahmad J. Severe cholestasis and renal failure associated with the use of the designer steroid Superdrol (methasteron): a case report and literature review. Dig Dis Sci. 2009;54(5):1144–1146.
- Robles-Diaz M, Gonzalez-Jimenez A, Medina-Caliz I, et al. Distinct phenotype of hepatotoxicity associated with illicit use of anabolic androgenic steroids. Aliment Pharmacol Ther. 2015;41(1):116–125.
- LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. Androgenic Steroids. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases.
- Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
- World Anti-Doping Agency. International Standard: Prohibited List. Montreal: WADA; 2025.
Andriy Melnyk
A strength-sports coach and author of programs for beginner and intermediate levels. Writes about training planning.
