Methyltestosterone is a man-made form of testosterone, a naturally occurring sex hormone that is produced in a man's testicles. Small amounts of testosterone are also produced in a woman's ovaries and adrenal system.
Methyltestosterone is used in men and boys to treat conditions caused by a lack of this hormone, such as delayed puberty or other hormonal imbalances. Methyltestosterone is also used in women to treat breast cancer that has spread to other parts of the body.
Methyltestosterone may also be used for other purposes not listed in this medication guide.
Methyltestosterone can cause birth defects. Do not use if you are pregnant. Use effective birth control, and tell your doctor if you become pregnant during treatment. You should not use this medication if you are allergic to methyltestosterone, or have prostate cancer or male breast cancer.
Before receiving methyltestosterone, tell your doctor if you have benign prostatic hypertrophy, breast cancer, a bleeding or blood clotting disorder, liver or kidney disease, heart disease, coronary artery disease, congestive heart failure, or a history of heart attack.
To be sure this medication is helping your condition, your blood will need to be tested on a regular basis. Do not miss any scheduled visits to your doctor.Methyltestosterone can affect bone growth in boys who are treated for delayed puberty. Bone development may need to be checked with x-rays every 6 months during treatment.
You should not use this medication if you are allergic to methyltestosterone, or have certain conditions. Be sure your doctor knows if you have:
male breast cancer; or
if you are pregnant.
Before receiving methyltestosterone, tell your doctor if you are allergic to any drugs, or if you have:
benign prostatic hypertrophy (BPH);
a bleeding or blood clotting disorder;
liver or kidney disease; or
heart disease, coronary artery disease (hardened arteries), congestive heart failure, or a history of heart attack.
If you have any of these conditions, you may need a dose adjustment or special tests to safely take methyltestosterone.FDA pregnancy category X. This medication can cause birth defects. Do not receive methyltestosterone if you are pregnant. Tell your doctor right away if you become pregnant during treatment. Use an effective form of birth control while you are receiving this medication. It is not known whether methyltestosterone passes into breast milk or if it could harm a nursing baby. Do not receive this medication without telling your doctor if you are breast-feeding a baby. Methyltestosterone can affect bone growth in boys who are treated for delayed puberty. Bone development may need to be checked with x-rays every 6 months during treatment.
Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.
Your doctor may occasionally change your dose to make sure you get the best results from this medication.
To be sure this medication is helping your condition, your blood will need to be tested on a regular basis. Do not miss any scheduled visits to your doctor.Methyltestosterone can affect bone growth in boys who are treated for delayed puberty. Bone development may need to be checked with x-rays every 6 months during treatment. Store methyltestosterone at room temperature away from moisture and heat.
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
Seek emergency medical attention if you think you have used too much of this medicine.
An overdose of methyltestosterone is not expected to cause life-threatening symptoms.
Follow your doctor's instructions about any restrictions on food, beverages, or activity while you are using methyltestosterone.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have any of these serious side effects:
Women receiving methyltestosterone may develop male characteristics, which could be irreversible if testosterone treatment is continued. Stop taking this medication and call your doctor at once if you notice any of these signs of excess testosterone:
feeling short of breath, even with mild exertion;
swelling, rapid weight gain;
increased or ongoing erection of the penis;
bone pain, increased thirst, memory problems, restless feeling, confusion, nausea, loss of appetite, increased urination, weakness, muscle twitching; or
nausea, vomiting, stomach pain, loss of appetite, and jaundice (yellowing of the skin or eyes).
Less serious side effects (in men or women) may include:
acne, changes in skin color;
male pattern baldness;
headache, anxiety, depressed mood;
numbness or tingly feeling; or
increased or decreased interest in sex.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
The following drugs can interact with methyltestosterone. Tell your doctor if you are using any of these:
This list is not complete and there may be other drugs that can affect methyltestosterone. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
- Your pharmacist can provide more information about methyltestosterone.
Copyright 1996-2006 Cerner Multum, Inc. Version: 1.04. Revision Date: 4/12/2009 4:36:54 PM.;
- Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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