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

What Superdrol is and how it works

Superdrol is the common name for methasterone (methyldrostanolone), a DHT-derived oral steroid chemically related to drostanolone (Masteron) with an added methyl group at the 17-alpha position. That methylation is what makes it orally active, and it is also, as with every 17-alpha-alkylated oral, the direct source of its hepatotoxicity.

Superdrol has a notable regulatory history: in the mid-2000s it was sold openly in the US as an unregulated "prohormone" under supplement law, a loophole that let it reach a wide market before its actual pharmacology — and liver-injury case reports — caught up to the marketing. The Designer Anabolic Steroid Control Act of 2012 closed that loophole and classified methasterone as a Schedule III controlled substance alongside other anabolic steroids.

Being DHT-derived, it does not aromatize to estrogen, so its side-effect profile leans androgenic rather than estrogenic — but that non-aromatizing property has nothing to do with its liver risk, which comes entirely from the 17-alpha-alkylation and is severe even by the standards of this drug class.

Oral dosing & half-life

A half-life of roughly 8–16 hours supports either a single daily dose or a split into two, though the more important number with Superdrol is total daily milligrams, not timing — case reports of liver injury have occurred at doses commonly used in practice, not just at extremes.

Tablets are typically manufactured in small strengths precisely because the compound is active at low milligram amounts.

Tablet strengths shown reflect what is commonly manufactured, not a recommended total — given this compound’s liver-injury case history, the monitoring section below matters more than the dosing table.

What makes orals different from injectables

Like every swallowed steroid, Superdrol passes through the liver via the portal vein before reaching general circulation, and the 17-alpha-alkyl group is what lets it survive that first pass instead of being broken down before doing anything — the same trade-off every oral in this class makes.

What sets Superdrol apart from milder 17-alpha-alkylated orals is that its liver burden doesn’t scale down the way its dosing does: low milligram amounts don’t translate to low liver risk here the way they might be assumed to, which is exactly the gap between its marketing history and its documented case reports.

What to monitor & the real risks

This is one of the compounds in this library where liver monitoring deserves the most weight relative to its dose: published case reports describe cholestatic jaundice and significant ALT/AST elevation at durations and amounts that many would consider a short, low course. A baseline liver panel before starting and follow-up during any use is not optional caution — it is central to using this compound at all.

A lipid panel and blood pressure check round out the picture — expect the same HDL-down/LDL-up direction common to oral steroids. Any yellowing of the skin or eyes, dark urine, or persistent abdominal pain warrants stopping and seeking medical evaluation immediately rather than waiting for a scheduled lab draw.

Frequently asked questions