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Toremifene is used in postmenopausal women to treat breast cancer that has spread to other parts of the body (metastatic breast cancer). It is usually used to treat cancer that needs estrogen, a female hormone, in order to grow (estrogen-receptor positive). Toremifene is a nonsteroidal antiestrogen that blocks the effects of estrogen in the breast tissue, thereby slowing or stopping the growth of cancer.
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| Overview |
Photos |
How To Use |
Side Effects |
Precautions |
Missed Dose |
Drug Interactions |
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Toremifene
Uses
Toremifene is used in postmenopausal women to treat breast cancer that has spread to other parts of the body (metastatic breast cancer). It is usually used to treat cancer that needs estrogen, a female hormone, in order to grow (estrogen-receptor positive). Toremifene is a nonsteroidal antiestrogen that blocks the effects of estrogen in the breast tissue, thereby slowing or stopping the growth of cancer.
Notes
- Do not share this medication with others.Laboratory and/or medical tests (e.g., complete blood count, calcium levels, liver tests) should be performed periodically to monitor your progress or check for side effects.
- Consult your doctor for more details.
Storage
- Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture.
- Brief storage between 59-86 degrees F (15-30 degrees C) is permitted.
- Do not store in the bathroom.
- Keep all medicines away from children and pets.
How To Use
- Take this medication by mouth with or without food, usually once daily or as directed by your doctor.
- Dosage is based on your medical condition and response to therapy.Use this medication regularly to get the most benefit from it.
- To help you remember, take it at the same time each day.Since this drug can be absorbed through the skin and lungs, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets.Inform your doctor immediately if your condition worsens (e.g., you get new breast lumps).
Side Effects
- Hot flashes, sweating, nausea, vomiting, dry eyes, or dizziness may occur.
- If any of these side effects persist or worsen, notify your doctor promptly.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.Tell your doctor immediately if any of these unlikely but serious side effects occur: bone/joint/muscle pain or swelling, constipation, mental/mood changes (e.g., depression), trouble walking/clumsiness, swelling ankles/feet, unusual tiredness, vision changes (e.g., blurred vision, eye pain).Toremifene may increase your risk of uterine cancer.
- Tell your doctor immediately if you develop changes in menstrual period, unusual vaginal bleeding/discharge or pain/pressure below your "belly button" (navel).Tell your doctor immediately if any of these rare but very serious side effects occur: easy bleeding/bruising, fast/slow/irregular heartbeat, signs of infection (e.g., fever, chills, persistent sore throat), persistent nausea/vomiting, severe abdominal/stomach pain, dark urine, yellowing eyes/skin.Toremifene has rarely caused very serious (possibly fatal) blood clots in the lungs/legs, brain (stroke), and heart (heart attack).
- Seek immediate medical attention if you develop pain/swelling in the groin/calf, pain in the chest/jaw/left arm, confusion, fainting, severe sudden headache, slurred speech, sudden vision changes, shortness of breath, or weakness on one side of the body.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, severe dizziness, trouble breathing.If you notice other effects not listed above, contact your doctor or pharmacist.
Precautions
- Before taking toremifene, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.Before using this medication, tell your doctor or pharmacist your medical history, especially of: bone cancer (metastases), blood disorders (e.g., anemia, low platelets), diabetes, history of stroke or other blood clots (e.g., in the legs, lungs), heart disease (e.g., heart attack, irregular heartbeat), high blood pressure, liver disease, long periods of sitting or lying down (e.g., immobility such as being bedridden), uterus problems such as endometrial hyperplasia.This drug may make you dizzy or drowsy.
- Use caution while driving, using machinery, or doing any activity that requires alertness.
- Limit alcoholic beverages.Notify your doctor beforehand if you will be having surgery or will be confined to a chair/bed for a long time (e.g., a long plane flight).During pregnancy, toremifene should be used only when clearly needed.
- It may harm an unborn baby.
- If you become pregnant or think you may be pregnant, inform your doctor immediately.
- Women of childbearing age should use 2 forms of birth control while using this medication.
- Discuss the use of birth control, the risks and benefits of this medication, and any other concerns about using this medication with your doctor.It is not known if this medication passes into breast milk.
- Because of the possible risk to the infant, breast-feeding is not recommended while using this drug.
- Consult your doctor before breast-feeding.
Missed Dose
- If you miss a dose, take it as soon as you remember.
- If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule.
- Do not double the dose to catch up.
Drug 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, especially of: "blood thinners" (e.g., warfarin), "water pills" (diuretics such as hydrochlorothiazide), drugs affecting liver enzymes that remove toremifene from your body (e.g., certain anti-seizure medications such as carbamazepine/clonazepam/phenobarbital/phenytoin, rifampin).
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgement of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
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