Anavar is often described online as the “mild” steroid for women: the one that tones you up without making you look or sound masculine. The reality is more complicated, and some of its effects can be permanent.
This guide explains what Anavar (oxandrolone) is, why women use it, the side effects to know about, its current legal status and the evidence-based options that can help you build lean muscle without the same risks. It does not give dosing or cycle advice, because no safe non-medical dose for women has been established.
Quick answer
Anavar (oxandrolone) is an anabolic steroid, and using it for fitness or appearance is not considered safe for women. It is less masculinising than many other steroids, but it can still deepen the voice, cause facial hair and clitoral enlargement, and disrupt periods. Some of these changes do not reverse after stopping.
It can also strain the liver and lower “good” HDL cholesterol. In the United States, the FDA withdrew approval of the brand and generic oxandrolone tablets in June 2023 because of safety concerns. Products sold without a prescription are illegal in many countries and are often counterfeit. Strength training, enough protein, good sleep and, for some women, creatine are safer ways to get stronger and leaner.
What is Anavar (oxandrolone)?
Anavar is a brand name for oxandrolone, a synthetic anabolic-androgenic steroid. “Anabolic” means it helps build tissue such as muscle. “Androgenic” means it has male-hormone effects, such as a deeper voice and more body hair. Its official prescribing information notes that these two effects have never been fully separated in anabolic steroids.
Oxandrolone is a modified form of dihydrotestosterone (DHT), a potent male hormone, and it is taken as a tablet. Like other oral steroids, it is “17-alpha-alkylated”. This chemical change helps it survive digestion, but it also makes it harder on the liver.
The US Food and Drug Administration (FDA) first approved oxandrolone in 1964. Doctors prescribed it for specific medical problems, including:
- helping people regain weight after major surgery, chronic infection or severe trauma
- offsetting muscle breakdown caused by long-term corticosteroid treatment
- relieving bone pain linked to osteoporosis
It has also been studied in hospital care for severe burns. In those settings, patients were monitored for liver problems and, in women, for signs of masculinisation.
Why do some women use Anavar?
Women usually use Anavar to look leaner and more defined, to get stronger, or to hold on to muscle while dieting. It is popular in fitness circles because it is a tablet rather than an injection and because of its reputation for being “mild”.
Social influence plays a big part. In a qualitative study of 16 women who had used anabolic steroids, published in the International Journal of Drug Policy, almost all said a trusted man, such as a partner, friend or coach, introduced them to the drugs and told them what to take.
Anabolic steroids can increase muscle and strength, which is why they are banned in tested sport. The problem is everything that comes with those changes.
Is Anavar safe for women?
No. There is no well-established “safe” dose of Anavar for women using it for fitness or appearance. Clinical studies were designed to treat illness, not to test cosmetic use, and they included relatively few women. One review of oxandrolone research noted that only about 15% of trial participants were female.
Medical use also looked very different from gym use. Patients had a diagnosis, a prescription, a set treatment period and regular check-ups. The prescribing information told doctors to watch women for early signs of masculinisation and to stop treatment when they appeared, because some changes can become permanent.
Anavar is particularly risky if you:
- are pregnant or trying to get pregnant, because it can masculinise a female baby
- take the blood thinner warfarin, because oxandrolone can sharply increase bleeding risk
- have liver, kidney or heart disease, high cholesterol or a history of breast cancer
Side effects of Anavar in women
Side effects fall into five main groups: masculinising changes, liver effects, cholesterol and heart effects, hormonal and mood changes, and medicine interactions.
Virilisation (masculinising effects)
Virilisation means developing male-type physical traits. It happens because oxandrolone acts on the same receptors as testosterone. Women have far lower natural androgen levels than men, so their bodies respond strongly.
The prescribing information lists the effects below. It states that some virilising changes in women are irreversible even when the drug is stopped promptly, and that taking oestrogen does not prevent them.
|
Change |
What you may notice |
Does it reverse after stopping? |
|
Voice deepening |
Hoarseness, a lower pitch, voice cracking, losing high notes |
Often permanent once established |
|
Clitoral enlargement |
Growth in size, increased sensitivity |
May not fully reverse |
|
Excess facial and body hair (hirsutism) |
Coarse, dark hair on the chin, upper lip, chest or abdomen |
Hair that has grown often persists and may need removal |
|
Scalp hair thinning |
Male-pattern thinning at the crown or temples |
May partly recover; not guaranteed |
|
Acne and oily skin |
Breakouts on the face, chest or back |
Usually improves, but can leave scars or marks |
|
Period changes |
Irregular, lighter or missed periods |
Usually return, but timing varies |
Voice changes are the effect many women regret most. A published case report described a healthy 27-year-old whose voice stayed deeper for years after about one month of anabolic steroid use. In the interview study mentioned above, women said a changed voice was hard to hide and often brought shame and regret.
Early voice changes can be subtle. Hoarseness, a rough voice or difficulty reaching high notes can come before an obvious drop in pitch.
Liver strain and liver damage
Oral steroids like oxandrolone are processed by the liver, and the prescribing information lists several liver risks:
- Cholestatic hepatitis and jaundice: bile flow slows and the skin or eyes turn yellow. This can happen even at relatively low doses.
- Peliosis hepatis: a rare condition in which blood-filled cysts form in the liver. It may cause no symptoms until it leads to liver failure or internal bleeding.
- Liver tumours: usually benign but sometimes cancerous, mainly reported with long-term, high-dose use.
Avoiding alcohol is sensible, but it does not make an oral steroid safe for your liver.
Cholesterol and heart health
Anabolic steroids, including oxandrolone, lower HDL cholesterol (the “good” kind that helps clear fat from blood vessels) and sometimes raise LDL (the “bad” kind). The prescribing information warns that these changes can be very marked and may raise the risk of narrowed arteries and heart disease. Levels usually return to normal after stopping, but repeated use means repeated exposure.
Hormones, fertility and mood
Anavar can suppress the brain signals that control the menstrual cycle, which is why periods may become irregular or stop. The prescribing information also lists changes in libido, insomnia, depression and habituation, which means coming to rely on the drug.
It is not safe in pregnancy. Animal studies showed harm to developing offspring, and it can masculinise a female fetus.
Interactions with medicines
Oxandrolone strongly increases the effect of warfarin and can lead to dangerous bleeding. It may also affect how some oral diabetes medicines are processed. Always tell your doctor about any steroid use, including past use.
Why “mild” is a misleading label
Anavar is milder than some steroids, not mild in an absolute sense. Three things make the label risky.
- Women are highly sensitive to androgens. A drug that causes few visible changes in men can still masculinise a woman.
- Medical use came with medical monitoring. Supervised patients had liver tests, cholesterol checks and clear rules for stopping. Gym use usually has none of these.
- You cannot know what is in a black-market tablet. A 2022 systematic review of laboratory testing estimated that, on average, about 36% of anabolic steroids sold on the black market were counterfeit. Fake products may contain no active drug, the wrong amount or a different, more androgenic steroid.
Products sold as “legal Anavar” or “natural Anavar” are a separate concern. They are dietary supplements, not oxandrolone. Their claims are often unproven, and forensic testing has found some supplements containing anabolic steroids that were not listed on the label.
Is Anavar legal?
It depends on where you live, but buying Anavar without a prescription is illegal in many countries.
- United States: Oxandrolone is a Schedule III controlled substance. The FDA withdrew approval of Oxandrin and generic oxandrolone tablets, effective 28 June 2023, after concluding that its risks, including serious liver problems and harmful cholesterol changes, were serious enough to remove it from the market.
- Other countries: Anabolic steroids are prescription-only medicines in many countries. Possessing, importing or supplying them without a prescription can carry penalties, and rules can differ by state or region, so check your local laws.
- Sport: Anabolic steroids, including oxandrolone, are banned at all times in tested sport under the World Anti-Doping Agency’s rules.
Safer ways to build lean muscle and lose fat
You can build a strong, defined body without steroids. Progress is slower, but the results are yours to keep and do not come with the risk of permanent masculinisation.
Lift weights consistently
Resistance training is the main driver of muscle growth. Train each major muscle group at least twice a week, and gradually increase the weight, repetitions or sets over time. This is called progressive overload.
Eat enough protein
Muscle is built and repaired using protein. Include a good source, such as eggs, dairy, fish, poultry, tofu, lentils or beans, at each meal. Whey protein powder is a convenient top-up, not a requirement. If you already eat enough protein, branched-chain amino acid (BCAA) supplements are unlikely to add much.
Consider creatine
Creatine monohydrate is one of the most researched sports supplements. A 2021 review in the journal Nutrients found it appears effective for improving strength and exercise performance in premenopausal women, and that concerns about harmful effects are largely unfounded. Women naturally store less creatine than men, which may be one reason it helps. Speak to a doctor first if you have kidney disease.
Lose fat slowly
A modest calorie deficit, combined with weight training and enough protein, helps you keep muscle while losing fat. Crash dieting makes muscle loss more likely.
Prioritise sleep and recovery
Muscle repairs between workouts. Regular, good-quality sleep and planned rest days support progress, energy and appetite control.
Get qualified help
An accredited exercise professional or dietitian can tailor a plan to your body, goals and health. This is especially useful if you have a condition such as polycystic ovary syndrome (PCOS), which affects hormones and body composition.
A note on clenbuterol
Clenbuterol is sometimes promoted as an “Anavar alternative”. It is not a safe one. It is not approved for human use in the United States, where it is approved only for horses. It is a powerful stimulant that can strain the heart, and it is banned in sport.
If you have used Anavar: what to do next
If you notice early signs of virilisation, such as hoarseness, new facial hair or clitoral changes, stop and speak to a doctor promptly. Be open about what you took. Your doctor needs the full picture to help you, and their job is to look after your health, not to judge you.
A doctor may suggest:
- liver function tests
- a cholesterol (lipid) test and blood pressure check
- hormone tests if your periods have not returned
- a referral to an ear, nose and throat (ENT) specialist or speech pathologist if your voice has changed
Seek urgent medical help if you have yellowing of the skin or eyes, dark urine, severe abdominal pain, chest pain or shortness of breath.
Some after-effects can be managed. Unwanted facial hair can be reduced, and our guide to facial laser hair removal vs waxing explains the options, ideally after a doctor has checked your hormones. If acne has left dark marks, read about why pigmentation appears on the face and how to fade it.
If you feel pressure to keep changing your body, or find it hard to stop using performance drugs, raise that with your doctor too. Support is available, and it looks after your whole health, not just your physique.
The bottom line
Anavar’s reputation as a woman-friendly steroid hides real and sometimes permanent risks, and in the US its medical approval has been withdrawn. If you are tempted to try it, talk to a doctor first, and if you have already used it, get checked rather than waiting. Steady training, good food and rest take longer, but the results are safer and truly yours. For more practical health guides, explore our Health & Wellness section.
