brand names Halotestin
and Ultandren among others, is an androgen and anabolic steroid (AAS) medication which is used in the treatment of low testosterone levels in men, delayed puberty in boys, breast cancer in women, and anemia.
Generic name: Fluoxymesterone
Localsteroid.com uses generic names in all descriptions of drugs. Halotestin is the trade name for Fluoxymesterone. In some cases, health care professionals may use the trade name Halotestin when referring to the generic drug name Fluoxymesterone.
Drug type: Halotestin is a hormone therapy. Halotestin is classified as an “androgen.” (For more detail, see “How this drug works” section below).
What This Drug Is Used For:
Fluoxymesterone is used to treat breast cancer. It is a palliative treatment for recurrent estrogen-receptor positive breast cancer.
Note: If a drug has been approved for one use, physicians may elect to use this same drug for other problems if they believe it may be helpful.
How This Drug Is Given:
Fluoxymesterone is a pill, taken by mouth.
The amount of fluoxymesterone that you will receive depends on many factors, including your height and weight, your general health or other health problems, and the type of cancer or condition being treated. Your doctor will determine your dose and schedule.
Important things to remember about the side effects of fluoxymesterone:
Most people do not experience all of the side effects listed.
Side effects are often predictable in terms of their onset and duration.
Side effects are almost always reversible and will go away after treatment is complete.
There are many options to help minimize or prevent side effects.
There is no relationship between the presence or severity of side effects and the effectiveness of the medication.
The side effects of fluoxymesterone and their severity depend on how much of the drug is given. In other words, high doses may produce more severe side effects.
The following side effects are common (occurring in greater than 30%) for patients taking Halotestin:
Absence of menstrual periods (amenorrhea) (see menopause)
Deepening of voice
Clitoral enlargement (may be irreversible)
Swelling of face, hands or feet
Acne (see skin reactions)
Loss of fertility. Meaning, your ability to conceive or father a child may be affected by fluoxymesterone. Discuss this issue with your health care provider.
These side effects are less common side effects (occurring in about 10-29%) of patients receiving Halotestin:
Facial hair growth (on women)
Increased appetite/weight gain
Temporary decrease in thyroid hormone T4 (thyroxine). Thyroid function does not appear to be affected. (see blood test abnormalities.
Increased or decreased libido (see sexuality).
A rare, but potentially serious side effect of fluoxymesterone is the development of hepatic adenomas (liver tumors), hepatocellular cancer (liver cancer) or other liver problems. This can occur after long-term use.
Your fertility, meaning your ability to conceive or father a child, may be affected by fluoxymesterone. Please discuss this issue with your health care provider.
Not all side effects are listed above. Some that are rare (occurring in less than 10% of patients) are not listed here. However, you should always inform your health care provider if you experience any unusual symptoms.
When to contact your doctor or health care provider:
The following symptoms require medical attention, but are not an emergency. Contact your health care provider within 24 hours of noticing any of the following:
Nausea (interferes with ability to eat and unrelieved with prescribed medication)
Swelling, redness and/or pain in one leg or arm and not the other
Yellowing of the skin or eyes
Swelling of the feet or ankles. Sudden weight gain
Always inform your health care provider if you experience any unusual symptoms.
Before starting fluoxymesterone treatment, make sure you tell your doctor about any other medications you are taking (including prescription, over-the-counter, vitamins, herbal remedies, etc.).
Fluoxymesterone can affect serum glucose levels in diabetic patients. Patients with diabetes should monitor their glucose carefully. Medication to treat the diabetes may need to be altered.
Inform your health care professional if you are pregnant or may be pregnant prior to starting this treatment. Pregnancy category X (fluoxymesterone may cause fetal harm when given to a pregnant woman. This drug must not be given to a pregnant woman or a woman who intends to become pregnant. If a woman becomes pregnant while taking fluoxymesterone, the medication must be stopped immediately and the woman given appropriate counseling).
For both men and women: Do not conceive a child (get pregnant) while taking fluoxymesterone. Barrier methods of contraception, such as condoms, are recommended. Discuss with your doctor when you may safely become pregnant or conceive a child after therapy.
Do not breast feed while taking this medication.
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