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Eribulin

Eribulin mesylate injection is a microtubule inhibitor indicated for the treatment of patients with: Metastatic breast cancer who have previously rece.

Checked against the official label · Updated

Prescription medicine Intravenous

How to use Eribulin

What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.

यह किसके लिए है

Eribulin mesylate injection is a microtubule inhibitor indicated for the treatment of patients with: Metastatic breast cancer who have previously received at least two chemotherapeutic regimens for the treatment of metastatic disease. Prior therapy should have included an anthracycline and a taxane in either the adjuvant or metastatic setting. ( 1.1 ) Unresectable or metastatic liposarcoma who have received a prior anthracycline-containing regimen. ( 1.2 ) 1.1 Metastatic Breast Cancer Eribulin mesylate injection is indicated for the treatment of patients with metastatic breast cancer who have previously received at least two chemotherapeutic regimens for the treatment of metastatic disease. …

How to take it and how often
  • Administer 1.4 mg/m 2 intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle
  • Reduce dose in patients with hepatic impairment or with moderate or severe renal impairment
  • Do not mix with other drugs or administer with dextrose-containing solutions
  • Recommended Dose The recommended dose of eribulin mesylate injection is 1.4 mg/m 2 administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle
  • The recommended dose of eribulin mesylate injection in patients with mild hepatic impairment (Child-Pugh A) is 1.1 mg/m 2 administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations ]
  • The recommended dose of eribulin mesylate injection in patients with moderate hepatic impairment (Child-Pugh B) is 0.7 mg/m 2 administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations ]
  • The recommended dose of eribulin mesylate injection in patients with moderate or severe renal impairment (creatinine clearance (CLcr) 15 to 49 mL/min) is 1.1 mg/m 2 administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations ]
  • Dose Modification Assess for peripheral neuropathy and obtain complete blood cell counts prior to each dose
  • Recommended dose delays • Do not administer eribulin mesylate injection on Day 1 or Day 8 for any of the following: - ANC < 1,000/mm 3 - Platelets < 75,000/mm 3 - Grade 3 or 4 non-hematological toxicities. …
Strengths it comes in

Injection: 1 mg/2 mL (0.5 mg/mL) eribulin mesylate is a clear, colorless, sterile solution in a single-dose vial. Injection: 1 mg per 2 mL (0.5 mg per mL) eribulin mesylate in a single-dose vial ( 3 )

Children
  • The safety and effectiveness of eribulin mesylate injection
  • In pediatric patients have not been established
  • Pediatric use information describing clinical studies in which efficacy was not demonstrated is approved for Eisai Inc’s HALAVEN ® (eribulin mesylate) injection
  • However, due to Eisai Inc’s marketing exclusivity rights, this drug product is not labeled with that information
Older adults

Study 1 did not include sufficient numbers of subjects with metastatic breast cancer aged 65 years and older to determine whether they respond differently from younger subjects. Of the 827 subjects who received the recommended dose and schedule of eribulin mesylate in clinical studies with advanced breast cancer, 15% (121/827) were 65 and older and 2% (17/827) patients were 75 and older. …

While you are taking it
  • Advise the patient to read the FDA-approved patient labeling (Patient Information)
  • Neutropenia Advise patients to contact their health care provider for a fever of 100.5°F or greater or other signs or symptoms of infection such as chills, cough, or burning or pain on urination [see Warnings and Precautions ]
  • Peripheral Neuropathy Advise patients to inform their healthcare providers of new or worsening numbness, tingling and pain in their extremities [see Warnings and Precautions ] . …
Talk to a doctor first if
  • None
  • None
Medicines it may not mix with

7.1 Effects of Other Drugs on Eribulin Mesylate No drug-drug interactions are expected with CYP3A4 inhibitors, CYP3A4 inducers or P‑glycoprotein (P-gp) inhibitors. Clinically meaningful differences in exposure (AUC) were not observed in patients with advanced solid tumors when eribulin mesylate was administered with or without ketoconazole (a strong inhibitor of CYP3A4 and a P-gp inhibitor) and when eribulin mesylate was administered with or without rifampin (a CYP3A4 inducer) [see Clinical Pharmacology ( 12.3 )]. …

Warnings

Neutropenia : Monitor peripheral blood cell counts and adjust dose as appropriate. ( 5.1 ) Peripheral Neuropathy : Monitor for signs of neuropathy. Manage with dose delay and adjustment. ( 5.2 ) Embryo-Fetal Toxicity : Can cause fetal harm. Advise females of reproductive potential of the potential risk to the fetus and to use effective contraception. ( 5.3 , 8.1 , 8.3 ) QT Prolongation : Monitor for prolonged QT intervals in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, and electrolyte abnormalities. Avoid in patients with congenital long QT syndrome. …

Possible side effects

The most common adverse reactions (≥25%) in metastatic breast cancer were neutropenia, anemia, asthenia/fatigue, alopecia, peripheral neuropathy, nausea, and constipation. ( 6.1 ) The most common adverse reactions (≥25%) in liposarcoma and leiomyosarcoma were fatigue, nausea, alopecia, constipation, peripheral neuropathy, abdominal pain, and pyrexia. The most common (≥5%) Grade 3 to 4 laboratory abnormalities in liposarcoma and leiomyosarcoma were neutropenia, hypokalemia, and hypocalcemia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Dr. Reddy’s Laboratories, Inc., at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . …

Pregnancy and breastfeeding

8.1 Pregnancy Risk Summary Based on findings from an animal reproduction study and its mechanism of action, eribulin mesylate, can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )]. There are no available data on the use of eribulin mesylate during pregnancy. …

If you take too much

Overdosage of eribulin mesylate has been reported at approximately 4 times the recommended dose, which resulted in Grade 3 neutropenia lasting seven days and a Grade 3 hypersensitivity reaction lasting one day. There is no known antidote for eribulin mesylate injection overdose.

If you miss a dose

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2026-01-20.

Brands around the world

Products with Eribulin as the active ingredient. Names differ between countries.

Check your pack of Eribulin

Type the registration number on the pack, or scan it with your camera.

Or take photos of the pack
3 free checks left today Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Eribulin

What is Eribulin used for?

Eribulin mesylate injection is a microtubule inhibitor indicated for the treatment of patients with: Metastatic breast cancer who have previously received at least two chemotherapeutic regimens for the treatment of metastatic disease. Prior therapy should have included an anthracycline and a taxane in either the adjuvant or metastatic setting. ( 1.1 ) Unresectable or metastatic liposarcoma who have received a prior a (From the official U.S. FDA label.)

How do I take Eribulin?

Follow your prescription or the leaflet in your pack. The official label says: Administer 1.4 mg/m 2 intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle. ( 2.1 ) Reduce dose in patients with hepatic impairment or with moderate or severe renal impairment. ( 2.1 ) Do not mix with other drugs or administer with dextrose-containing solutions. ( 2.3 ) 2.1 Recommended Dose The recommended dose of eribulin mesylate injection is 1.4 mg/m 2 adminis…

Do I need a prescription for Eribulin?

Usually yes. Eribulin is a prescription medicine in most countries. Rules differ by country.

What brands contain Eribulin?

Eribulin is sold under names such as Halaven, Eribulin Mesylate. Brand names differ between countries.

What are the side effects of Eribulin?

The official label lists: The most common adverse reactions (≥25%) in metastatic breast cancer were neutropenia, anemia, asthenia/fatigue, alopecia, peripheral neuropathy, nausea, and constipation. ( 6.1 ) The most common adverse reactions (≥25%) in liposarcoma and leiomyosarcoma were fatigue, nausea, alopecia, constipation, peripheral neuropathy, abdominal pain, and pyrexia. The most common (≥5%) Grade… Tell your doctor about any side effect that bothers you or does not go away.

Can children take Eribulin?

The safety and effectiveness of eribulin mesylate injection in pediatric patients have not been established. Pediatric use information describing clinical studies in which efficacy was not demonstrated is approved for Eisai Inc’s HALAVEN ® (eribulin mesylate) injection. However, due to Eisai Inc’s marketing exclusivity rights, this drug product is not labeled with that informat… Always use the dose for the child's age or weight on the pack or prescription.

Can I take Eribulin when pregnant or breastfeeding?

8.1 Pregnancy Risk Summary Based on findings from an animal reproduction study and its mechanism of action, eribulin mesylate, can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )]. There are no available data on the use of eribulin mesylate during pregnancy. … Ask your doctor or midwife first.

What medicines interact with Eribulin?

7.1 Effects of Other Drugs on Eribulin Mesylate No drug-drug interactions are expected with CYP3A4 inhibitors, CYP3A4 inducers or P‑glycoprotein (P-gp) inhibitors. Clinically meaningful differences in exposure (AUC) were not observed in patients with advanced solid tumors when eribulin mesylate was administered with or without ketoconazole (a strong inhibitor of CYP3A4 and a P-… Use the free interaction checker before combining medicines.

What happens if I take too much Eribulin?

Overdosage of eribulin mesylate has been reported at approximately 4 times the recommended dose, which resulted in Grade 3 neutropenia lasting seven days and a Grade 3 hypersensitivity reaction lasting one day. There is no known antidote for eribulin mesylate injection overdose. Get medical help right away.

How can I check that my Eribulin is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.