Testosterone undecanoate is used for:
Treating symptoms of low testosterone in men when the body does not make any testosterone or not enough testosterone (hypogonadism). It may also be used for other conditions as determined by your doctor.
Testosterone undecanoate is a male sex hormone. It works by replacing or supplementing the testosterone that is naturally made in the body.
Do NOT use testosterone undecanoate if:
you are allergic to any ingredient in testosterone undecanoate
you are pregnant, planning to become pregnant, or are breast-feeding
you have breast cancer or known or suspected prostate cancer
Contact your doctor or health care provider right away if any of these apply to you.
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Before using testosterone undecanoate:
Some medical conditions may interact with testosterone undecanoate. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
if you are pregnant, planning to become pregnant, or are breast-feeding
if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
if you have allergies to medicines, foods, or other substances
if you have heart problems (eg, heart failure), kidney or liver problems, an enlarged prostate gland, high cholesterol levels, swelling (edema) or problems retaining fluid, lung problems, cancer, high blood calcium levels, diabetes, or sleep apnea (long pauses in breathing while you sleep)
if you are very overweight
if you have a history of blood clots
Some MEDICINES MAY INTERACT with testosterone undecanoate. Tell your health care provider if you are taking any other medicines, especially any of the following:
Anticoagulants (eg, warfarin), corticosteroids (eg, prednisone), insulin, or oral hypoglycemics (eg, glyburide) because the risk of their side effects may be increased by testosterone undecanoate
This may not be a complete list of all interactions that may occur. Ask your health care provider if testosterone undecanoate may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use testosterone undecanoate:
Use testosterone undecanoate as directed by your doctor. Check the label on the medicine for exact dosing instructions.
Testosterone undecanoate comes with an extra patient information sheet called a Medication Guide. Read it carefully. Read it again each time you get testosterone undecanoate refilled.
Testosterone undecanoate is given as an injection into a muscle at your doctor’s office, hospital, or clinic. Contact your health care provider if you have any questions.
Do not use testosterone undecanoate if it contains particles, is cloudy or discolored, or if the vial is cracked or damaged.
Keep this product, as well as syringes and needles, out of the reach of children and away from pets. Do not reuse needles, syringes, or other materials. Ask your health care provider how to dispose of these materials after use. Follow all local rules for disposal.
If you miss a dose of testosterone undecanoate, call your doctor to find out what to do.
Ask your health care provider any questions you may have about how to use testosterone undecanoate.
Important safety information:
Tell your doctor or dentist that you take testosterone undecanoate before you receive any medical or dental care, emergency care, or surgery.
Testosterone undecanoate is not approved for treating low testosterone levels caused by aging. Discuss any questions or concerns with your doctor.
Blood clots have happened in patients using testosterone products such as testosterone undecanoate. Tell your doctor if you have ever had a blood clot. Call your doctor right away if you have symptoms of a blood clot (eg, swelling, warmth, numbness, change of color, or pain in a leg or arm; chest pain; shortness of breath; coughing up blood).
Testosterone undecanoate may increase the risk of heart attack or stroke. Call your doctor right away if you have chest pain or pressure, confusion, one-sided weakness, or speech or vision problems.
If you already have an enlarged prostate gland, your symptoms can get worse while you get testosterone undecanoate. Call your doctor if your symptoms get worse while using testosterone undecanoate.
People treated with medicines like this one may have a raised risk for prostate cancer. Discuss any questions or concerns with your doctor.
Testosterone undecanoate may affect sperm in men. This may affect being able to father a child. Discuss any questions or concerns with your doctor.
Diabetes patients – Testosterone undecanoate may affect your blood sugar. Check blood sugar levels closely. Ask your doctor before you change the dose of your diabetes medicine.
Testosterone undecanoate may interfere with certain lab tests. Be sure your doctor and lab personnel know you are using testosterone undecanoate.
Lab tests may be performed while you use testosterone undecanoate. These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
Use testosterone undecanoate with caution in the ELDERLY; they may be more sensitive to its effects, especially heart disease, an enlarged prostate, or prostate cancer.
PREGNANCY and BREAST-FEEDING: Using testosterone undecanoate while pregnant may cause harm to the fetus. It is not known if this medicine is found in breast milk. Testosterone undecanoate is not approved for use in women.