SteroidDHT Derivative

Halotestin (Fluoxymesterone)

Oral (Fluoxymesterone) — 17aa, very androgenic

Also known as Fluoxymesterone, Halo, halotestin

Half-life

~6-9 hours

What is Halotestin (Fluoxymesterone)?

Highly androgenic oral steroid used for short strength/aggression peaks.

How Halotestin (Fluoxymesterone) works

Strong AR agonist with pronounced CNS androgenic effects and poor anabolic-to-toxicity ratio.

Benefits & uses

Extreme strength & aggression (short-term)
Muscle hardness
Used pre-competition (strength/combat sports)

Common uses: Acute strength/aggression, contest peak (advanced, brief).

Halotestin (Fluoxymesterone) dosage

Protokol doesn't recommend doses for prescription or controlled compounds. Any figures below are reference or observational reports — dosing should be set with a qualified clinician.

Protocol notes: 10-20mg daily. Extreme aggression and strength. Run 2-4 weeks max pre-competition only. Very hepatotoxic.
Commonly reported: Observational only; brief use due to toxicityObservational use reports — not a recommendation.

Halotestin (Fluoxymesterone) half-life

~6-9 hours

Halotestin (Fluoxymesterone) side effects

Severe hepatotoxicity risk
Mood irritability/aggression
Marked lipid/BP worsening
🔴 Severe liver toxicity
Aggression/mood effects (marked)
Harsh lipids
Blood-pressure rise
HPTA suppression

Warnings & monitoring

🔴 Very hepatotoxic + strong psychiatric/aggression effects. Requires close bloodwork + medical monitoring
Advanced-only, brief use
Not for beginners

Commonly stacked with

Testosterone Enanthate Trenbolone Acetate

Track Halotestin (Fluoxymesterone) in Protokol.

Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.