Dianabol (Methandrostenolone)

What is Dianabol (Methandrostenolone)?

Dianabol was developed by the Swiss company Ciba and released in 1958. It was promoted in the US partly through the work of Dr. John Ziegler, a team physician for American weightlifters, who hoped to match the testosterone use he had seen among Soviet athletes. Ziegler later said he regretted the role he played, after watching athletes take far larger doses than he ever intended.

Ciba stopped selling Dianabol in the US in the early 1980s, and generic versions were withdrawn soon after. It has since disappeared from most regulated medical markets, although it is still made legally as a veterinary drug or by licensed manufacturers in a small number of countries, and widely by illegal labs.

Dianabol is an anabolic-androgenic steroid (AAS), a synthetic relative of testosterone designed to boost tissue building.

 Chemical structure and composition

Two small changes separate Dianabol from testosterone:

• A 17-alpha methyl group. This lets it survive the first pass through the liver so it works as a tablet, but it also makes it toxic to the liver.
•  An extra double bond between carbons 1 and 2. This reduces its androgenic strength somewhat and changes how it binds to proteins in the blood, leaving more of the drug free and active.

How does Dianabol work?

Methandrostenolone binds to androgen receptors in muscle and other tissues, switching on genes that drive protein building. Its effects come on fast because it is taken by mouth and reaches high blood levels within hours.

1. Rapid protein synthesis. Muscle cells build protein faster and retain more nitrogen.
2. Glycogen storage. It increases the amount of stored carbohydrate (glycogen) in muscle, which adds size and short-term strength.
3. Water and sodium retention. Much of the quick weight gain people see in the first weeks is water, not muscle.
4. More red blood cells. Like other anabolic steroids, it raises red blood cell production.
5. Lower SHBG binding. It binds weakly to sex hormone-binding globulin, so a higher share of the drug stays free and active.

Why does Dianabol cause so much water retention?

Unlike Anavar or Winstrol, Dianabol does convert to estrogen. The aromatase enzyme turns it into 17-alpha-methylestradiol, a potent and long-lasting estrogen. This leads to bloating, a puffy face, raised blood pressure and a high risk of breast tissue growth in men.

Why is it hard on the liver?

The 17-alpha methyl group that makes the tablet work also slows its breakdown in the liver. Liver cells are exposed to the drug for longer, raising the risk of cholestasis (blocked bile flow), raised liver enzymes and, with long use, liver cysts and tumors.

How long does it stay in the body?

The active drug clears within a day, but its long-lived metabolites can be detected in urine for weeks to months with modern anti-doping tests. Methandienone remains one of the most frequently detected steroids in sport.

Uses of Dianabol

Dianabol has almost no place in modern medicine. Newer, safer drugs have replaced it for every condition it was once used for. The table below shows how it was used historically.

In the United States, regulators concluded that the evidence did not support its continued use, and the drug was removed from the market. Most other countries followed.

Who is it for?

Today, Dianabol is not recommended for any routine medical use in humans. If someone has weight loss, muscle wasting, low testosterone or bone loss, doctors have approved and better-studied options, such as nutritional support, testosterone replacement, bisphosphonates or other targeted treatments.

Who should never use it?

• Anyone without a doctor's prescription in a country where it is still licensed
• People with high blood pressure, heart disease or a history of stroke
• People with liver disease or a history of liver tumors
• Men with prostate or breast cancer
• Pregnant or breastfeeding women
• Children and teenagers, whose growth plates can close early
• People with diabetes or kidney disease
• Anyone wanting it for bodybuilding or sports performance

How was Dianabol taken?

When it was a licensed medicine, Dianabol was taken by mouth as a small tablet, usually once a day, for a limited course. Because it is no longer approved for human use in most countries, there is no current official dosing guidance.

Historical medical dosing

The figures below describe how the drug was used in medicine decades ago and are included only for context. They are not a recommendation.

These medical doses were a small fraction of what is commonly used in bodybuilding today. The much higher doses seen outside medicine are the main reason for the serious harm linked to the drug.

If you have been prescribed it

In the rare case that a doctor in a country where it remains licensed prescribes methandienone:

• Take it exactly as directed, at the same time each day.
• Do not take extra doses or extend the course on your own.
• Avoid alcohol and other liver-straining medicines.
• Keep every blood pressure check and blood test.
• Store tablets at room temperature, away from light, moisture and children.

If you are using it without a prescription

Please speak to a doctor. Many clinics offer confidential, non-judgmental care for people who use steroids, including blood tests, blood pressure checks and help with stopping safely. Getting checked is far safer than guessing.

Precautions and warnings

Dianabol combines several risks that most other steroids carry only one or two of: it is liver-toxic, it converts to a strong estrogen, and it raises blood pressure through fluid retention. Extra caution is needed in these situations.

• High blood pressure or heart disease: fluid retention and cholesterol changes add direct strain to the heart.
• Liver disease: any existing liver problem can worsen quickly.
• Kidney disease: salt and water retention and higher blood pressure can damage the kidneys.
• Diabetes: blood sugar control can change.
• Breast tissue history: men prone to gynecomastia are at high risk of it worsening.
• Mental health: mood swings, irritability, aggression and depression are commonly reported.
• Sleep apnea: fluid retention can worsen breathing at night.
• Young people: growth plates can close early, permanently reducing height.

Tests a doctor would check

• Blood pressure, ideally several times a week
• Liver function tests
• Lipid profile (HDL and LDL)
• Full blood count and hematocrit
• Kidney function
• Estradiol and testosterone levels
• PSA in older men

Drug interactions

Sports and drug testing

Methandienone is banned at all times by the World Anti-Doping Agency (WADA). Because it has no current approved medical use in most countries, a Therapeutic Use Exemption is very unlikely to be granted.

Side effects of Dianabol

Dianabol's side effects are among the most noticeable of any oral steroid, and many appear within the first few weeks.

Common side effects

• Rapid weight gain from water retention and a "puffy" face
• Raised blood pressure, sometimes with headaches or nosebleeds
• Acne and oily skin
• Raised liver enzymes
• Lower HDL and higher LDL cholesterol
• Mood swings, irritability and trouble sleeping
• Increased appetite
• Scalp hair loss in people prone to male-pattern baldness

Estrogen-related side effects

• Breast tenderness, puffy nipples and breast tissue growth (gynecomastia), which can become permanent
• Bloating and swelling of hands, feet and ankles

Side effects in men

• Shutdown of natural testosterone production
• Shrinking testicles and lower sperm count
• Low sex drive and erection problems, especially after stopping
• Prostate enlargement

Side effects in women

Dianabol is strongly masculinizing for women. Changes can be permanent:

• Deeper voice
• Facial and body hair growth
• Enlarged clitoris
• Stopped or irregular periods
• Scalp hair loss

Serious side effects

Get urgent medical help for:

• Chest pain, a racing heart or shortness of breath
• Severe headache, vision changes, face drooping or one-sided weakness
• Yellow skin or eyes, dark urine or severe itching
• Pain or fullness under the right ribs
• Sudden leg swelling or pain
• Thoughts of self-harm, or extreme aggression

Long-term use has been linked to heart muscle thickening (left ventricular hypertrophy), heart attack, stroke, liver tumors and peliosis hepatis.

Risks of misuse and fake products

Because there is almost no legal supply for humans, nearly all Dianabol is made in unregulated labs. Studies of seized and online steroids regularly find wrong doses, wrong ingredients and contamination. Stopping after a long course can cause weeks to months of low testosterone, with depression, fatigue and low libido.

Legal status

• United States: Schedule III controlled substance with no approved human product; possession without a valid prescription is a crime.
• United Kingdom: Class C drug; supply without authorization is illegal.
• Australia and Canada: controlled; not available as a licensed human medicine.
• Other countries: rules vary widely; in many places it is available only illegally.

Check your country's current laws before buying, importing or travelling with any steroid. Ordering online can lead to criminal charges and seizure at customs.

Conclusion

Dianabol (methandrostenolone) is a historic oral anabolic steroid that helped launch the modern steroid era. It works fast, building muscle and storing water and glycogen, but it does so at a high cost: liver strain, strong estrogen effects, raised blood pressure, cholesterol damage, hormone shutdown in men and permanent masculinization in women. It has been withdrawn from human medical use in most countries because safer treatments exist. If you are thinking about using it, or already are, the safest next step is an honest conversation with a doctor.