Anadrol Side Effects: Liver Toxicity, Cardiovascular Impact & More (2026)

Anadrol (oxymetholone) carries the heaviest side effect burden of any commonly used anabolic steroid. Understanding its toxicity is not a precaution — it is prerequisite knowledge for anyone considering this compound. This clinical overview covers each major adverse effect category, severity, and management strategies.

Side Effect Summary Table

Side Effect	Incidence	Severity	Reversibility
Hepatotoxicity (elevated LFTs)	Near-universal	Severe	Reversible with cessation
HDL cholesterol reduction	Universal	Severe	Largely reversible post-cycle
Hypertension	Very common	Moderate–Severe	Largely reversible post-cycle
Water/sodium retention	Universal	Moderate	Fully reversible
Gynecomastia	Common	Moderate	May require surgical management
HPG axis suppression	Universal	Severe	Reversible with PCT
Androgenic effects (acne, hair loss)	Common	Mild–Moderate	Reversible with cessation
Appetite suppression	Very common	Mild–Moderate	Reversible

Hepatotoxicity: The Primary Concern

Anadrol is C-17 alpha-alkylated to survive first-pass hepatic metabolism. This structural modification makes it orally bioavailable but causes significant hepatic stress in virtually all users.

Clinical manifestations include elevation of ALT and AST (alanine and aspartate aminotransferases), often 3–5x the upper limit of normal at 50 mg/day doses. At 100 mg/day, elevations of 5–10x are documented. Peliosis hepatis (blood-filled cysts in liver tissue) and hepatocellular carcinoma have been reported in patients on long-term therapeutic oxymetholone, though primarily in patients receiving doses of 1–5 mg/kg/day for years, not the 4–6 week performance cycles used by athletes.

Management: TUDCA (500 mg/day minimum), NAC (1200 mg/day), zero alcohol. LFT monitoring before, mid-cycle (week 3), and 4 weeks post-cycle. Discontinue immediately if ALT/AST exceeds 3x upper limit of normal. See our complete liver protection guide for oral steroids.

Cardiovascular Effects

Lipid Profile

Anadrol produces some of the worst lipid alterations of any anabolic steroid. HDL cholesterol typically falls by 50–70% at 50 mg/day, and LDL increases substantially. This dramatically worsens the atherogenic index and represents a significant long-term cardiovascular risk in repeated users. Avoid additional hepatic lipase-stimulating compounds (e.g., Winstrol) during an Anadrol cycle.

For comparison with other compounds, see our Winstrol side effects guide.

Blood Pressure

Water and sodium retention from Anadrol's oestrogen-receptor activity causes significant blood pressure elevation in most users. Systolic BP increases of 15–30 mmHg are common. This is compounded by the presence of testosterone and other stacked compounds. Daily blood pressure monitoring during an Anadrol cycle is strongly recommended. Target: below 135/85 mmHg. See our safe steroid use guide for blood pressure management protocols.

Oestrogen-Type Effects (Non-Aromatisation Pathway)

Despite not aromatising to oestradiol, Anadrol produces pronounced oestrogen-like effects through direct oestrogen receptor agonism. These include:

• Water retention: Often 10–15 lbs during a cycle, contributing to the rapid weight gain
• Gynecomastia: Risk is significant, particularly at doses above 50 mg/day. SERMs (tamoxifen/Nolvadex) are more effective than AIs for blocking Anadrol's oestrogenic activity at the receptor level, since it does not arise through aromatisation.

Androgenic Side Effects

Despite oxymetholone's relatively low androgenic rating (45), it produces androgenic side effects disproportionate to its theoretical rating in many users. This may be related to its partial DHT-derivative structure and receptor binding profile:

• Acne: Common, particularly on the back and shoulders. Worse in users with genetic predisposition.
• Accelerated male pattern hair loss: In genetically predisposed men, Anadrol is a high-risk compound for hairline recession. Unlike DHT-derived compounds, the effects are not fully addressed by finasteride as oxymetholone's androgenic activity in hair follicles involves multiple pathways.
• Virilisation in women: Anadrol is essentially contraindicated in female athletes. Even 12.5 mg/day produces significant virilisation in many women. Anavar is the appropriate oral anabolic for female use — see our Anavar complete guide.

HPG Axis Suppression

Anadrol produces profound suppression of the hypothalamic-pituitary-gonadal axis, resulting in near-complete cessation of endogenous testosterone and LH/FSH production within 2 weeks of use. Recovery without PCT may take 4–6 months. A structured PCT protocol is mandatory. See our complete PCT guide for full recovery protocols.

Psychological Effects

Mood effects from Anadrol are variable but reported more frequently than with other anabolic steroids. Some users report significant irritability and aggression. Others report appetite suppression severe enough to impair caloric intake — counterproductive during a bulking cycle. Psychological symptoms resolve fully after cessation in the overwhelming majority of users.

Appetite Suppression

Paradoxically, despite being a mass-building compound, Anadrol causes appetite suppression in a significant minority of users — particularly at doses above 50 mg/day. This is thought to be related to its oestrogen-receptor agonism in the hypothalamus, which includes appetite-regulatory centres. If caloric intake drops significantly, switch to Dianabol for the oral bulking component. See our Anadrol vs Dianabol comparison.

Frequently Asked Questions

Can Anadrol cause permanent liver damage?

With short-cycle use (4–6 weeks) and adequate liver support, LFT elevations are reversible in the vast majority of cases. Hepatocellular carcinoma and peliosis hepatis are documented primarily in patients using therapeutic doses (1–5 mg/kg/day) for years — not athletes running 4–6 week cycles. However, repeated cycles, doses above 100 mg/day, and concurrent hepatotoxic substances dramatically increase risk.

Is Anadrol worse for the liver than Dianabol or Winstrol?

Yes. Anadrol is associated with greater LFT elevation per milligram than Dianabol. Winstrol produces less absolute LFT elevation in most comparisons, but worsens the lipid profile similarly and adds joint stress. Anadrol's overall hepatotoxic burden at doses producing equivalent mass gains is the highest of any commonly used oral AAS.

Does Anadrol cause hair loss faster than other steroids?

In predisposed men, Anadrol is considered a high-risk compound for accelerated hair loss — comparable to Trenbolone and Winstrol. Finasteride has limited effectiveness given the multiple pathways involved. If hairline preservation is a priority, choose a compound with a lower androgenic profile.