Fluoxymesterone (Halotestin) 5 mg

Fluoxymesterone (Halotestin) 5 mg is Hilma Biocare's high-potency oral androgen, supplied as 100 tablets. It is one of the most androgenic oral steroids ever developed, non-aromatising and historically used for androgen replacement and anaemia.

What Halotestin Is

Fluoxymesterone is a 17-alpha-alkylated oral anabolic androgenic steroid with a fluorine atom at carbon nine and a hydroxyl group at carbon eleven. Those modifications make it resistant to hepatic breakdown and highly androgenic. It does not aromatise to oestradiol, so it produces no oestrogen-driven water retention. The 5 mg tablet is the classic Halotestin strength, and the compound is considered one of the most potent oral androgens by weight.

The History of Halotestin

Fluoxymesterone was developed by Upjohn in the 1950s and introduced as Halotestin in the late 1950s for androgen deficiency, delayed puberty and certain anaemias. It was also used in breast cancer palliation. Its extreme androgenic potency gave it a reputation as a strength and aggression compound in physique research from the 1960s onward. It remains a controlled substance and a well-known reference point in steroid pharmacology.

How It Works

Because fluoxymesterone is 17-alpha-alkylated, it survives first-pass hepatic metabolism and is orally active. It binds the androgen receptor with high affinity and produces strong androgenic signalling in muscle and other tissues. It is not aromatised, so oestradiol levels are unaffected. The compound is metabolised in the liver and excreted in urine, and its 17-alpha-alkylation is the reason it is associated with hepatic stress.

What the Research Shows

• Fluoxymesterone was studied clinically for hypogonadism, anaemia and breast cancer.
• Its strong androgen-receptor binding and lack of aromatisation are well documented.
• Research on 17-alpha-alkylated steroids has characterised their hepatic metabolism.
• Comparative work places it among the most androgenic oral compounds.

Research Context

Fluoxymesterone's structure explains its behaviour. The fluorine at carbon nine and the hydroxyl at carbon eleven increase its resistance to metabolism and its androgen-receptor affinity, while the 17-alpha-alkyl group allows oral absorption at the cost of hepatic stress. Research on 17-alpha-alkylated steroids has documented elevations in liver enzymes and, with prolonged exposure, more serious hepatic changes. Analytical work has also characterised its urinary metabolites, which are used in doping control. Those two themes, potency and hepatic burden, dominate the clinical literature on Halotestin.

Strength, Pack and Authentication

The pack contains 100 tablets of 5 mg each, sealed in moisture-resistant blister strips inside a printed carton. The carton states the compound, strength and tablet count, and a scratch-off security code inside the box links the pack to Hilma Biocare's records. Each tablet is manufactured to a consistent 5 mg dose.

Buying Halotestin Online

Halotestin is one of the most searched high-potency oral androgens. If you are researching fluoxymesterone, comparing Halotestin 5 mg products or looking to buy Halotestin online from a trusted Hilma Biocare supplier, this page gives you the full specification, pack size, price and live stock status. Browse more Hilma Biocare oral products at NotNatty.