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The prostate gland is an organ that is located at the base or outlet (neck) of the urinary bladder. (See the diagram that follows.) The gland surrounds the first part of the urethra. The urethra is the passage through which urine drains from the bladder to exit from the penis. One function of the prostate gland is to help control urination by pressing directly against the part of the urethra that it surrounds. The main function of the prostate gland is to produce some of the substances that are found in normal semen, such as minerals and sugar. Semen is the fluid that transports the sperm to assist with reproduction. A man can manage quite well, however, without his prostate gland. (See the section on surgical treatment for prostate cancer.)
In a young man, the normal prostate gland is the size of a walnut (<30g). During normal aging, however, the gland usually grows larger. This hormone-related enlargement with aging is called b...30g).
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Infrequently, shrinking of the testicles, breast tenderness/swelling, and reduced sexual interest/ability may also occur as a result of lowered testosterone levels. Talk to your doctor if these effects occur.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
During the first few weeks of treatment, your level of testosterone will actually increase before it decreases. This is a normal response by your body to this drug. This may sometimes result in new or worsening symptoms for a few weeks. If you have prostate cancer that has spread to the spine or caused urinary blockage, you may require closer monitoring by your doctor, especially when you first start treatment. Tell your doctor immediately if you experience any of the following serious side effects: bone pain, numbness/tingling/weakness of the arms/legs, blood in the urine, painful/difficult urination, unusual weakness, inability to move.
Tell your doctor immediately if any of these unlikely but serious side effects occur: new/worsening bone pain, easily broken bones, increased thirst/urination.
Get medical help right away if any of these rare but serious side effects occur: chest discomfort/pain, irregular heartbeat, weakness on one side of the body, slurred speech.
Rarely, a very serious problem with your pituitary gland (pituitary apoplexy) may occur, usually in the first hour to 2 weeks after your first injection. Seek immediate medical attention if any of these very serious side effects occur: sudden severe headache, sudden severe mental/mood changes (e.g., severe confusion, difficulty concentrating), vision changes, severe vomiting, fainting.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
PRECAUTIONS: Before using leuprolide, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: diabetes, heart disease (such as heart attack), stroke, family history of sudden cardiac death.
Leuprolide may weaken your bones and increase your risk for bone loss (osteoporosis) if used for a long time. Before using this medication, tell your doctor or pharmacist if you have osteoporosis or if you have any of the following risk factors for osteoporosis: long-term alcohol use, smoking, family history of osteoporosis and broken bones, use of certain medications (e.g., corticosteroids such as prednisone, certain anti-seizure drugs such as phenytoin).
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
Leuprolide must not be used during pregnancy. It may harm an unborn baby. If you become pregnant or think you may be pregnant, inform your doctor immediately. Consult your doctor for more details and to discuss reliable forms of birth control. Non-hormonal birth control methods are recommended during treatment with leuprolide.
It is not known if leuprolide passes into breast milk. Because the effects of leuprolide on a nursing infant are unknown, breast-feeding is not recommended. Consult your doctor before breast-feeding.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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