Halotestin (Fluoxymesterone) — Dosing, Cycles, Half-Life & Side Effects

Halotestin (Fluoxymesterone) is an oral anabolic-androgenic steroid with a half-life of 9.2 hours. Extremely potent oral steroid for strength with minimal mass gains, highly hepatotoxic. Primary risks include significant hepatotoxicity, strong HPTA suppression, liver stress typical of 17α-alkylated orals. This page is educational harm-reduction reference compiled from peer-reviewed literature — not medical advice, not an endorsement, not a recommendation to use. Consult a licensed clinician before any decision.

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Quick Facts

Class	Orals
Half-life	9.2 hours
Detection window	60 days
Aromatization	No
Hepatotoxicity	Very High
Suppression	9/10
17α-alkylated	Yes
Administration	oral

Typical Dosing Ranges

Common dose range: 10-40mg/day

Cycle length: 2-4 weeks

Time to steady state: ~2 days

Dose ranges are compiled from published pharmacokinetic studies and community-reported usage. Where a value is community-reported rather than clinically studied, this page and its structured data flag it. Lower end of any range is always the safer starting point.

Stacking Considerations

Do not stack with another 17α-alkylated oral. Dual-17αα stacking is prohibited in StackItSmart and unsafe for the liver.
Incompatible combinations per internal rule set: Anadrol (Oxymetholone), Superdrol (Methasterone), Dianabol (Methandrostenolone), Winstrol (Stanozolol), Anavar (Oxandrolone), tbol.

PCT Requirements

This compound causes clinically meaningful HPTA suppression. Post-cycle therapy is recommended.
Depot clearance estimate: ~2 days post-last-dose before SERM start (5 × apparent depot half-life of 9.2h).
Never stack two SERMs. Extend a single SERM (tamoxifen OR enclomiphene/clomiphene) rather than combining.
Use the cycle planner to generate a full protocol based on your complete stack, not this compound alone.

Side Effect Profile

Severe hepatotoxicity
Extreme suppression
High cost
Minimal muscle gains

Known Interactions

No compound-specific interactions are catalogued in the current matrix. This does not mean no risk exists — it means there is no curated pairwise entry.

Monitoring (Bloodwork & Vitals)

Comprehensive metabolic panel (baseline, mid-cycle, post-cycle)
Lipid panel (total cholesterol, HDL, LDL, triglycerides)
CBC (hemoglobin, hematocrit — watch for erythrocytosis)
Sex-hormone panel (Total T, Free T, Estradiol sensitive, SHBG, LH, FSH)
Liver enzymes (ALT, AST, GGT) every 2–4 weeks on oral 17αα cycles
Blood pressure (weekly self-check; flag systolic >140 or diastolic >90)

Baseline bloodwork is recommended before any cycle. Discontinue if liver enzymes exceed 3× upper limit of normal or if hematocrit exceeds 54%.

Frequently Asked Questions

What is the half-life of Halotestin (Fluoxymesterone)?

Halotestin (Fluoxymesterone) has a half-life of approximately 9.2 hours. Clearance estimate: 9.2h × 5 = 46h = 1.9 days. This figure is used to determine injection frequency (for esters) and post-cycle clearance timing.

What is the typical dose range for Halotestin (Fluoxymesterone)?

Commonly reported ranges for Halotestin (Fluoxymesterone): 10-40mg/day. Cycle length: 2-4 weeks. These are compiled from published studies and community-reported usage — individual response varies and lower end is always preferred.

Does Halotestin (Fluoxymesterone) suppress natural testosterone?

Halotestin (Fluoxymesterone) causes severe suppression of the HPTA axis (score 9/10). Post-cycle therapy (PCT) is recommended after use.

Is Halotestin (Fluoxymesterone) liver toxic?

Hepatotoxicity rating: Very High. Halotestin (Fluoxymesterone) is 17α-alkylated, which bypasses first-pass liver metabolism and increases hepatic stress. Oral 17αα cycles should be capped at 6 weeks and paired with liver monitoring (ALT/AST every 2–4 weeks).

Does Halotestin (Fluoxymesterone) aromatize to estrogen?

Aromatization profile: No. Minimal to no aromatization expected, so aromatase inhibitors are not typically indicated for this compound alone.

What is Halotestin (Fluoxymesterone) typically used for?

Halotestin (Fluoxymesterone) is commonly used for: Powerlifting, Pre-competition, Strength plateaus. Intended-use context does not imply safety — every use case carries the same underlying pharmacological risks.

Citations

Disclaimer

StackItSmart is an independent harm-reduction reference. The content above is compiled from peer-reviewed literature and is not medical advice, not an endorsement, and not a recommendation to use Halotestin (Fluoxymesterone). Performance-enhancing compounds carry legal, endocrine, cardiovascular, and hepatic risks. Consult a licensed clinician before any decision. StackItSmart does not provide sourcing, procurement, or dosing prescriptions.