Halobol (Fluoxymesterone) 10mg Alpha Pharma
Halobol by Alpha Pharma is an oral preparation containing 50 tablets of Fluoxymesterone 10mg per pack. As a synthetic derivative of testosterone, Halobol is clinically indicated for replacement therapy in men with low or absent endogenous testosterone production, and is also used in the palliative treatment of metastatic breast cancer in women.
Quick Facts Box:
Active Substance: Fluoxymesterone
Strength: 10 mg per tablet
Pack Size: 50 tablets
Manufacturer: Alpha Pharma Healthcare
Form: Oral tablets
Class: Anabolic-androgenic steroid (AAS)
What Is Halobol?
Halobol is an oral anabolic-androgenic steroid manufactured by Alpha Pharma Healthcare. Its active ingredient, Fluoxymesterone, is a synthetic analogue of testosterone modified at the 17-alpha position for oral bioavailability and at the 9- and 11-positions for enhanced androgenic activity. First developed in the late 1950s, Fluoxymesterone has a long-established place in clinical medicine as a hormone replacement and adjunctive therapy.
Halobol is highly androgenic with moderate anabolic activity, making it particularly valued in clinical settings where strong androgenic effects are desired without excessive water retention or estrogenic conversion.
How Halobol Works
Fluoxymesterone binds to androgen receptors throughout the body, mimicking the action of natural testosterone. Once bound, it promotes nitrogen retention, increases protein synthesis, and stimulates erythropoiesis (red blood cell production). Its 17-alpha-alkylation allows oral administration by protecting it from rapid hepatic breakdown, while the 11-beta-hydroxyl group prevents aromatization, meaning it does not convert to estrogen.
This pharmacological profile produces strong androgenic effects — supporting development and maintenance of male secondary sexual characteristics, muscle strength, and bone density — without the estrogenic side effects associated with many other anabolic compounds.
Side Effects and Warnings
Like all 17-alpha-alkylated oral steroids, Halobol places significant strain on the liver and may cause hepatotoxicity with prolonged use or high dosing. Regular liver function monitoring is essential.
Common adverse effects may include:
Hepatic dysfunction and elevated liver enzymes
Changes in serum lipid profile (decreased HDL, increased LDL)
Acne, oily skin, and accelerated male-pattern hair loss in predisposed individuals
Increased aggression or mood changes
Suppression of endogenous testosterone production
In women: virilization (deepening of voice, hirsutism, clitoral enlargement)
In adolescents: premature epiphyseal closure
Fluid retention, edema
Headache, nausea
Frequently Asked Questions
Q: What is Halobol used for? A: Halobol is primarily used as testosterone replacement therapy in men with hypogonadism, for delayed puberty in adolescent males, and as a palliative treatment for metastatic breast cancer in postmenopausal women.
Q: How long does it take Halobol to work? A: Clinical effects of Fluoxymesterone can typically be observed within a few weeks of initiating therapy, though full response in breast cancer treatment is evaluated at three months.
Q: Is Halobol the same as Halotestin? A: Yes. Halobol (Alpha Pharma) and Halotestin are brand names for the same active ingredient, Fluoxymesterone.
Q: Can women use Halobol? A: Halobol is indicated for women only in the specific context of metastatic breast cancer as palliative therapy, due to its strong virilizing potential.
Q: Does Halobol cause estrogenic side effects? A: No. Fluoxymesterone does not aromatize to estrogen, so gynecomastia and water retention from estrogenic conversion are not typical concerns.
Q: Is a prescription required to buy Halobol? A: Yes. Halobol is a prescription-only medication and should only be used under medical supervision.
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