What Is Oxymetholone? Half-Life, Dosing & How to Track It

What oxymetholone is and how it works

Oxymetholone is a modified derivative of DHT, structurally set apart by an added hydroxymethylene group. It has a genuine, still-current medical use: it is FDA-approved to treat anemias caused by deficient red blood cell production, including some bone marrow disorders. Use for anemia associated with HIV was historical/off-label rather than part of that current approved indication.

Despite being DHT-derived, oxymetholone behaves unusually estrogenically for a non-aromatizing compound — the leading explanation in the literature is that it interacts with the estrogen receptor somewhat directly rather than through conversion to estrogen the way testosterone does. Practically, that means noticeable water retention and estrogen-adjacent side effects are common with it, similar in feel to an aromatizing compound even though the underlying mechanism is different.

It is 17-alpha-alkylated, the same modification that lets most orals in this batch survive digestion (oral methenolone/Primobolan is the exception) — and in oxymetholone's case, that modification pairs with a compound that is already among the more potent in this class, which is a large part of why its liver profile draws the most attention.

Oral dosing & half-life

A roughly 8–9 hour half-life sits between the shorter orals (methandrostenolone, methenolone) and gives some protocols the option of a single daily dose, though splitting into two remains common to keep levels steadier.

Oxymetholone is typically manufactured in a smaller number of standard strengths, historically dominated by one pharmaceutical dose.

Tablet strengths shown reflect what is commonly manufactured, not a recommended total — given this compound's risk profile, the monitoring section below matters more than the dosing table for any responsible use of it.

What makes orals different from injectables

Like every compound on this page, oxymetholone is absorbed from the gut and passes through the liver via the portal vein before reaching general circulation — first-pass metabolism, the same route every swallowed steroid takes and an injectable ester bypasses entirely. The 17-alpha-alkyl group is what lets it survive that pass instead of being broken down before doing anything.

The difference with oxymetholone specifically is that it combines that liver-first route with a compound that is already potent and prone to fluid retention, which is why its risk profile reads as materially higher than the other orals in this batch rather than just "another 17-aa steroid."

What to monitor & the real risks

This is the compound in this batch where liver monitoring deserves the most weight: oxymetholone is the entry most consistently linked in case literature to significant ALT/AST elevation and, less commonly, cholestatic jaundice or peliosis hepatis (blood-filled cysts in liver tissue) at higher or prolonged exposure. A baseline liver panel before starting and regular follow-up during use is not optional caution here — it is the core of using this compound responsibly at all.

Blood pressure is the second major concern: the fluid retention associated with oxymetholone is often more pronounced than with the other compounds on this page, and that translates directly into elevated blood pressure for many users. A lipid panel rounds out the picture — expect the same HDL-down/LDL-up direction common to this class, often more pronounced given the compound's overall potency. Regular blood pressure checks, not just lab draws, are worth building into the habit here.

Frequently asked questions