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Halotestin

Fluoxymesterone / Halo · Anabolic steroid (oral)

Research reference only. Pepdex does not sell, supply or track this compound, and nothing here is guidance to use it — this page exists so the evidence and the risks are visible.

What it is

An oral androgen with old prescription history (hypogonadism, breast cancer). Non-medical strength-sport use is reported, but controlled performance evidence is absent.

What human evidence shows

The prescription-era record proves biological activity. The strength-sport reputation rests entirely on athlete anecdote — pharmacologically plausible androgen-CNS effects, never trialed.

Risks

Among the most hepatotoxic orals in the published record, severe lipid disruption over short exposures, blood-pressure elevation, and a reported behavioral signature — irritability and aggression that users describe as the effect and the people around them experience as the problem. HPG-axis suppression is marked.

Stacking interactions

Documented interactions with other things people research. A compound not listed here does not mean the combination is safe — only that no specific interaction is on file.

CautionWinstrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnavar

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnadrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionDianabol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionTurinabol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionSuperdrol

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

CautionAnabolic steroids

Each of these oral steroids has independently been associated with liver injury. Pair-specific safety data are lacking, and concurrent exposure may increase hepatic risk.

Legal status

US: Schedule III anabolic steroid under the CSA. Historically FDA-approved; current marketing status should be verified against the Orange Book.

Evidence base

A489 research papers
substantial literature

Strong human evidence: either a phase 3 or 4 trial report alongside review-level evidence, or ten or more randomised controlled trial reports.

phase 3/4
3
randomised
39
reviews
1
human trials
65

Counts are of published papers, not distinct trials, and measure how much research exists — not whether this works or is safe for you.

Research (12)

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Where next

Every compound in the catalogThe full non-peptide index, with evidence grades.→The peptide indexInjectable peptides, half-lives and what trials used.→Spotting a scam vendorRed flags, COA checks and what traceability looks like.→