22
Feb
Posted by admin as Drug Facts
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| (fool-VESS-trant) |
| Faslodex |
| Solution for injection |
| 50 mg/mL |
| Class: Antiestrogen |
Action Fulvestrant competitively binds to the estrogen receptor and downregulates the estrogen receptor protein in human breast cancer cells.
Indications Treatment of hormone receptor-positive metastatic breast cancer in postmenopausal women with disease progression following antiestrogen therapy.
Contraindications Pregnancy; hypersensitivity to the drug or any component of the product.
Route/Dosage
Adults: IM 250 mg into buttock at 1-mo intervals.
Interactions
None well documented.
Lab Test Interferences None well documented.
Adverse Reactions
CNS: Headache; dizziness; insomnia; paresthesia; depression; anxiety. DERMATOLOGIC: Rash; sweating. EENT: Pharyngitis. GI: Nausea; vomiting; constipation; diarrhea; abdominal pain; anorexia. GU: Urinary tract infection. HEMATOLOGIC: Anemia. RESPIRATORY: Dyspnea; increased cough. OTHER: Back pain; hot flushes; bone pain; arthritis; asthenia; pain; transient pain and inflammation at injection site; vasodilation; pelvic pain; peripheral edema; chest pain; flu-like syndrome; fever; accidental injury.
Precautions
Pregnancy: Category D. Lactation: Undetermined. Children: Safety and efficacy not established.
| PATIENT CARE CONSIDERATIONS |
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Administration/Storage
- For IM administration only. Not for IV, SC, or ID administration.
- Administer prescribed dose once monthly using prefilled syringe(s) and supplied safety needle(s).
- Administer as single 5 mL injection or concurrent 2.5 mL injections into buttock.
- Administer injection slowly.
- Do not administer if cloudiness or particulate matter is noted.
- Store prefilled syringes in refrigerator (36° to 46°C).
Assessment/Interventions
- Obtain patient history, including drug history and any known allergies. Note history of liver function impairment, bleeding diatheses, thrombocytopenia, or concurrent use of anticoagulants.
- Ensure that patient has negative pregnancy test before starting therapy.
- Monitor patient for GI, CNS, general body side effects, and injection site reactions. Inform health care provider if noted and significant.
Patient/Family Education
- Explain name, dose, action, and potential side effects of drug.
- Advise patient that medication will be prepared and administered by health care provider in a health care setting on a monthly basis.
- Instruct patient to inform health care provider if any of the following symptoms occur: intolerable nausea, vomiting, constipation, diarrhea, stomach pain, headache, hot flushes, injection site pain or inflammation.
- Instruct patient to not take any prescription or otc medications or dietary supplements unless advised by health care provider.
- Instruct women to notify health care provider if they become pregnant, plan on becoming pregnant, or are breastfeeding.
- Advise patient that follow-up visits and laboratory tests will be required to monitor therapy and to be sure to keep appointments.
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