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Fluoxymesterone Side Effects

Medically reviewed by Last updated on Nov 17, 2021.

For the Consumer

Applies to fluoxymesterone: oral tablets

Side effects include:

Males: Gynecomastia, frequent or persistent penile erections.

Females: Amenorrhea, other menstrual irregularities, inhibition of gonadotropin secretion, virilization (e.g., deepening of the voice, clitoral enlargement).

For Healthcare Professionals

Applies to fluoxymesterone: compounding powder, oral tablet


Rare (less than 0.1%): Hepatocellular neoplasms, peliosis hepatis, hepatic coma

Frequency not reported: Cholestatic jaundice, alterations in liver function tests[Ref]


Frequency not reported: Females: Virilization, gonadotropin secretion inhibition, amenorrhea and other menstrual irregularities; Males: Gynecomastia, oligospermia, penile erections of excessive frequency and duration[Ref]


Frequency not reported: Increased serum cholesterol; retention of sodium, chloride, water, potassium, calcium, and inorganic phosphates[Ref]


Frequency not reported: Polycythemia; suppression of clotting factors II, V, VII, and X; bleeding in patients on concomitant anticoagulant therapy[Ref]


Frequency not reported: Hirsutism, male pattern baldness, acne[Ref]


Frequency not reported: Nausea[Ref]

Nervous system

Frequency not reported: Headache, generalized paresthesia[Ref]


Rare (less than 0.1%): Anaphylactoid reactions

Frequency not reported: Hypersensitivity reactions[Ref]


Frequency not reported: Increased or decreased libido, anxiety, depression[Ref]


1. "Product Information. Androxy (fluoxymesterone)." Upsher-Smith Laboratories Inc (2015):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.