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Fareston is a medicine used to treat breast cancer in postmenopausal women.
How does this medication work?
Fareston is thought to work by slowing or stopping the growth of cancer cells in the body.
What are the beneficial effects of this medication and when should I begin to have results?
What: By stopping the growth of cancer cells, Fareston may help to relieve your symptoms associated with cancer.
When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider’s directions. It is important that you take Fareston exactly as your healthcare provider has prescribed.
How do I know it is working?
Your healthcare provider may order tests regularly to check how well this medication is working.
The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.
Fareston can cause a heart condition called QT prolongation (abnormal heartbeats), with symptoms such as increased heart rate, fainting, or seizures. Your healthcare provider may order certain blood tests to check your potassium or magnesium levels. Certain medicines may also cause QT prolongation. It is important that you tell your healthcare provider about all the medicines you are taking.
More common side effects may include: hot flashes, sweating, nausea, vaginal discharge.
Less common side effects may include:
Tumor flare (a reaction indicated by worsening symptoms, such as an increase in pain or tumor size).
Harm to your unborn baby. Tell your healthcare provider right away if you become pregnant or plan to become pregnant.
Fareston may increase your risk of developing endometrial (involving the inner lining of the uterus) cancer.
Do not take Fareston if you are allergic to it or any of its ingredients.
Do not take Fareston if you have a heart problem called QT prolongation or if you have low blood potassium or magnesium levels.
Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Fareston. Also, talk to your healthcare provider about your complete medical history, especially if you have heart or liver problems, a history of blood clots, or if you are pregnant, plan to become pregnant, or are breastfeeding.
The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.
Adults: The recommended dose is 60 milligrams once a day.
Take Fareston exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Fareston without first talking to your healthcare provider.
It is important to use effective non-hormonal birth control while taking Fareston. Discuss with your healthcare provider about appropriate forms of contraception.
Do not miss any scheduled follow-up appointments with your healthcare provider.
Do not drink grapefruit juice while you are taking Fareston.
If Fareston is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Fareston may interact with numerous medications. Therefore, it is very important that you tell your healthcare provider about any other medications you are taking.
Fareston can harm your unborn baby if you take it during pregnancy. The effects of Fareston during breastfeeding are unknown. Do not breastfeed while you are taking Fareston. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.
If you miss a dose of Fareston, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.
Store at room temperature.
In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
National Poison Control#: Call 1-800-222-1222
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