Oxandrolone (Anavar)
Also known as: Anavar, Var, Oxandrolon, Oxandrin, Oxa
Mild oral DHT derivative with genuine medical approval, well tolerated by the liver for a 17-alpha-alkylated compound — but harder on the lipid profile than almost anything else.
Substance family
Derived from dihydrotestosterone. They do not convert to estradiol, so no water retention — but also no estrogen of their own. Finasteride is useless against their hair loss, because they are already past the step it blocks. Hardest on the lipid profile.
Effects on
Which outcomes this substance acts on — descriptive, not a recommendation.
Strain profile
Where this substance is most likely to hit — a rough orientation, individually dependent on dose, duration and predisposition.
Dosing & protocols by goal
Rough orientation ranges as reported in harm-reduction literature — not an individual treatment plan. Doses are individual and open-ended; frequency depends on the ester or half-life.
Medical (burns, weight gain)
MedicalDose
5–20 mg / day
Frequency
2–4× daily
Cycle length
2–4 weeks, medically supervised
Approved for weight regain after severe burns, surgery or chronic illness — one of the few AAS with a current human indication.
Definition phase — Intermediate
IntermediateDose
30–50 mg / day
Frequency
Split into 2 doses
Cycle length
6–8 weeks
Because of the short half-lifehalf-lifeHow long it takes for half the substance to leave the body — it determines dosing frequency, not duration of effect., splitting the daily dose produces markedly steadier levels than a single administration.
Higher doses
AdvancedDose
> 50 mg / day
Frequency
Split into 2 doses
Cycle length
6–8 weeks
The lipid profile deteriorates disproportionately above this range, while the additional effect remains modest.
Side effect & countermeasure
Typical problems and what you can do to reduce harm — at a glance. Does not replace medical monitoring.
Problem
Severe drop in HDL — more pronounced than with most injectables
Countermeasure
The combination of oral administration and DHTDHTA far more potent androgen the body makes from testosterone — responsible for hair loss and prostate effects. structure hits HDLHDLThe lipoprotein that carries cholesterol away from artery walls — suppressed hard by oral steroids. particularly hard. Cardio as the base, plus omega-3 and citrus bergamot; with strongly deteriorated values, ezetimibe or pitavastatin under medical guidance. Measure a baseline before starting — without it, later values cannot be judged. If a statin is started, CoQ10 belongs alongside it — statins deplete it through the same pathway.
Problem
Liver strain from 17-alpha-alkylation
Countermeasure
Mild for an oral compound, but not absent. Check ALT, AST and GGT before and during use; avoid alcohol; do not combine several orals. Limit duration to 6–8 weeks rather than extending it. TUDCA at 500–1000 mg daily addresses the cholestaticcholestaticBile backing up in the liver because its flow is obstructed — the specific liver injury oral steroids cause. mechanism directly; NAC supports the antioxidant system alongside it.
Problem
Suppression of natural testosterone production despite its mild reputation
Countermeasure
Oxandrolone suppresses the axis reliably, including at low doses. A post-cycle plan is necessary here too — being well tolerated is not the same as being harmless to the hormonal system.
Problem
High risk of counterfeit product
Countermeasure
Oxandrolone is expensive to manufacture and is therefore frequently cut with cheaper orals such as methandienone or stanozolol. Water retention or rapid weight gain do not fit the profile and suggest a different substance.
Problem
Elevated blood pressure
Countermeasure
Measure at home, keep cardio in the plan, control salt and water balance. Medically, telmisartan, amlodipine or lisinopril, and low-dose tadalafil.
Problem
Estradiol falls too low (joint pain, low libido, low mood)
Countermeasure
Oxandrolone does not aromatizearomatizeThe body converting testosterone into estrogen via the aromatase enzyme.. Used alone, estradiolestradiolThe main estrogen — needed in men too, and damaging in both directions when out of range. drops along with natural testosterone — do not add an aromatase inhibitoraromatase inhibitorA drug that blocks the conversion of testosterone to estradiol. on top.
Overview
Oxandrolone, almost always referred to as Anavar, is one of the few anabolic steroids with a current human medical indication. It is approved for weight regain after severe burns, major surgery and chronic wasting conditions, and has been used in children in that context — an application that says a great deal about its tolerability at therapeutic doses.
Its reputation in the bodybuilding scene follows from this: Anavar is regarded as the mild oral. That is accurate for the liver and largely accurate for androgenic side effects. It is emphatically not accurate for the lipid profile, which oxandrolone affects more severely than most injectable steroids.
Mechanism of Action
Oxandrolone is a DHT derivative with two modifications. An oxygen atom replaces a carbon in the A-ring, which makes it resistant to breakdown by 3-alpha-hydroxysteroid dehydrogenase and thereby prolongs its action in muscle tissue. The 17-alpha-alkylation makes it orally available by protecting it from being broken down on first pass through the liver.
That second modification is the reason every oral steroid carries liver relevance — the same property that lets the substance survive the liver also means the liver has to process it. Oxandrolone is at the mild end of this class, but "mild" describes a position on a scale, not an absence.
The effect on the lipid profile stems from both properties combined. Oral administration means the substance reaches the liver in high concentration, where it alters the activity of hepatic lipase; the DHT structure amplifies the effect. The result is a drop in HDL that is regularly more pronounced than with injected compounds at comparable dosing.
Typical Context
Oxandrolone is used in definition phases, over six to eight weeks, and generally alongside a testosterone base. Because of its short half-life, the daily dose is usually split into two administrations.
It is also one of the few compounds regularly used by women, since virilising side effects occur less readily than with other substances. Less readily does not mean not at all — voice changes in particular are not reversible once they occur, which is why doses in that context sit far lower and monitoring matters more.
The price is a practical problem in its own right. Oxandrolone is expensive to synthesise, which makes it a frequent target for counterfeiting. Analyses of black-market samples repeatedly find methandienone or stanozolol in tablets sold as Anavar. Anyone experiencing marked water retention or rapid weight gain is almost certainly not taking oxandrolone.
Side Effects & Risks
- Severe drop in HDL, rise in LDL — the leading risk of this substance
- Liver strain from 17-alpha-alkylation, mild for an oral but present
- Suppression of natural testosterone production, including at low doses
- Estradiol too low when used without a testosterone base
- Elevated blood pressure
- High probability of counterfeit or cut product
- Accelerated hair loss with a genetic predisposition
- Virilisation in women: voice changes, clitoral enlargement, cycle disruption
Blood Work & Monitoring
- Lipid profile (LDL, HDL, triglycerides) — the key value here; baseline, during and 6–8 weeks after
- Liver values (ALT, AST, GGT) — baseline and during use
- Total/free testosterone — to assess suppression
- Estradiol (sensitive) — watch for levels that are too low
- Blood pressure — measured at home
- Hematocrit & hemoglobin — usually unremarkable, part of the baseline
Harm-Reduction Notes
- Measure a lipid baseline before starting; without it the extent of the change cannot be assessed
- HDL recovers slowly — plan a genuine break rather than chaining cycles
- Do not combine with other oral compounds; the liver burden is additive
- Limit duration to 6–8 weeks
- Avoid alcohol during use
- Treat the counterfeit risk seriously: water retention does not fit oxandrolone and indicates a different substance
- Being well tolerated does not mean the axis is spared — a post-cycle plan is necessary
Legal status by region
Regulation differs considerably between jurisdictions and changes over time. This is a rough orientation, not legal advice — check the rules that apply where you are.
| Region | Regulatory status |
|---|---|
| United States | Schedule III controlled substancePrescription required; possession without one is a federal offence. |
| EU / UK | Prescription-only medicineApproved for defined medical indications; supply without prescription is an offence. |
| Canada / Australia | Controlled substance, prescription-onlyImport for personal use is restricted. |
| Parts of Asia & Latin America | Pharmacy availability variesSome countries treat it as pharmacy-dispensed rather than strictly prescription-bound. Enforcement is inconsistent and rules change. |
| Competitive sport | Prohibited at all timesListed by WADA; national anti-doping law applies in addition. |