Vantas implant Warnings
Vantas implant Uses
Histrelin is used in men to treat advanced prostate cancer. It is not a cure. Most types of prostate cancer need the male hormone testosterone to grow and spread. Histrelin works by reducing the amount of testosterone that the body makes. This helps slow or stop the growth of cancer cells and helps relieve symptoms such as painful/difficult urination. Talk to your doctor about the risks and benefits of treatment.
Histrelin is also used in children to treat early puberty (central precocious puberty). It helps to slow abnormally fast bone development so that height and growth rate are near normal and to stop or reverse signs of early puberty (such as breast/pubic hair growth in girls, pubic hair growth in boys). Histrelin works by reducing the amount of testosterone in boys and estrogen in girls. This medication is used until the doctor decides it is time for puberty to resume.How to use Vantas implant
Read the Patient Information Leaflet that comes with the histrelin implant. If you have any questions, consult your doctor.
Your doctor will surgically place the medicated implant under the skin of your upper arm. The implant releases histrelin into your blood slowly and continuously over 12 months. After 12 months, your doctor will remove the implant and replace it with a new one. Consult your doctor for details.
It is very important to keep the bandage in place for several days until the surgical incision heals. Keep the incision clean and dry. Avoid bathing and swimming for 24 hours after the procedure. Also avoid any heavy lifting, bumping of the incision site, or physical activity for 7 days after the procedure.
When you first start this medication, new or worsening symptoms may occur. This is a normal response by your body to this drug. Such symptoms should get better after the first month of treatment. Girls being treated for early puberty may notice vaginal bleeding or an increase in breast size or pubic hair. Boys being treated for early puberty may notice an increase in pubic hair. Tell the doctor if the symptoms persist or worsen after 1 month.
New or worsening symptoms may also occur at the beginning of treatment for prostate cancer. 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. If you have prostate cancer that has spread to the spine or caused problems urinating due to blockage, you may require closer monitoring by your doctor, especially when you first start treatment.
Vantas implant Side Effects
Irritation at the implant site (such as bruising, pain, redness), mood swings, or headache may occur. In men using this medication for prostate cancer, hot flashes (flushing), increased sweating, night sweats, tiredness, swelling of the ankles/feet, or constipation may occur. In girls using this medication for early puberty, breast tenderness or abnormal vaginal bleeding may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Infrequently, breast tenderness/swelling may occur in men and boys as a result of lowered testosterone levels. Shrinking of the testicles and reduced sexual interest/ability may also occur in men. 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.
If you are a man using this medication for prostate cancer, 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/jaw/left arm pain, irregular heartbeat, weakness on one side of the body, slurred speech.
Rarely, a very serious problem with the pituitary gland (pituitary apoplexy) has been reported with similar drugs, usually in the first 2 weeks after starting treatment. 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 -
Vantas implant Precautions
Before using histrelin, tell your doctor or pharmacist if you are allergic to it; or to similar drugs (e.g., leuprolide); 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, high cholesterol, family history of sudden cardiac death.
If you are a man using this medication for prostate cancer, histrelin 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 product is not approved for use in women. Histrelin must not be used during pregnancy. It may harm an unborn baby. Consult your doctor for details.
Vantas implant Interactions
Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use.
Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
Vantas implant Overdose
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.NOTES:
Laboratory and/or medical tests (such as blood testosterone level, PSA blood test if using for prostate cancer, blood testosterone/estradiol level, height, bone age if using for early puberty, blood glucose) should be performed periodically to monitor your progress. Consult your doctor for more details.
If you have radiology tests (X-rays, MRI), the histrelin implant will not be affected or affect the results of these tests. This implant does not show up on X-ray examination. However, make sure radiology personnel and all your doctors know you use this product.MISSED DOSE:
Infrequently, the implant can come out of the upper arm. If this occurs or you suspect that this has occurred, call your doctor. Keep all appointments so your doctor can make sure the implant is in place and working.
To help prevent a missed dose, mark your calendar to keep track of when to schedule the placement of your next implant.STORAGE:
Before implantation, the product should be refrigerated between 36-46 degrees F (2-8 degrees C). Protect from light and do not freeze.
Information last revised December 2013. Copyright(c) 2013 First Databank, Inc.