Neratinib is a kinase inhibitor indicated as a single agent, for the extended adjuvant treatment of adult patients with early-stage HER2-positive breast cancer, to follow adjuvant trastuzumab-based therapy, among other approved uses. MedsAcross supplies Neratinib for export from India to licensed hospitals, importers and physicians acting for named patients, with the documents each country requires.
Information from the US FDA prescribing information, retrieved 12 November 2026. Not yet medically reviewed.How we review
From the regulator-approved product information. Each section names its source.
NERLYNX is a kinase inhibitor indicated: As a single agent, for the extended adjuvant treatment of adult patients with early-stage HER2-positive breast cancer, to follow adjuvant trastuzumab-based therapy. In combination with capecitabine, for the treatment of adult patients with advanced or metastatic HER2-positive breast cancer who have received two or more prior anti-HER2 based regimens in the metastatic setting.
Source: US FDA prescribing information
Neratinib is an intracellular kinase inhibitor that irreversibly binds to epidermal growth factor receptor (EGFR), HER2, and HER4. In vitro, neratinib reduces EGFR and HER2 autophosphorylation, downstream MAPK and AKT signaling pathways, and showed antitumor activity in EGFR and/or HER2 expressing carcinoma cell lines. Neratinib human metabolites M3, M6, M7 and M11 inhibited the activity of EGFR, HER2, and HER4 in vitro. In vivo, oral administration of neratinib inhibited tumor growth in mouse xenograft models with tumor cell lines expressing HER2 and EGFR.
Source: US FDA prescribing information
Premedication for diarrhea: When not using dose escalation, initiate loperamide with the first dose of NERLYNX and continue during the first 56 days of treatment. After day 56, use loperamide to maintain 1–2 bowel movements per day. Extended adjuvant treatment of early-stage breast cancer: 240 mg (6 tablets) given orally once daily, with food, continuously until disease recurrence or for up to one year. Advanced or metastatic breast cancer: 240 mg (6 tablets) given orally once daily with food on Days 1–21 of a 21-day cycle plus capecitabine (750 mg/m 2 given orally twice daily) on Days 1–14 of a 21-day cycle until disease progression or unacceptable toxicities. Dose escalation: A two-week dose escalation for NERLYNX may also be initiated. Dose interruptions and/or dose reductions are recommended based on individual safety and tolerability.
Source: US FDA prescribing information
None. None.
Source: US FDA prescribing information
Diarrhea: Manage diarrhea through either NERLYNX dose escalation or loperamide prophylaxis. If diarrhea occurs despite recommended prophylaxis, treat with additional antidiarrheals, fluids, and electrolytes as clinically indicated. Withhold NERLYNX in patients experiencing severe and/or persistent diarrhea. Permanently discontinue NERLYNX in patients experiencing Grade 4 diarrhea or Grade ≥2 diarrhea that occurs after maximal dose reduction. Hepatotoxicity: Monitor liver function tests monthly for the first 3 months of treatment, then every 3 months while on treatment and as clinically indicated. Withhold NERLYNX in patients experiencing Grade 3 liver abnormalities and permanently discontinue NERLYNX in patients experiencing Grade 4 liver abnormalities. Embryo-Fetal Toxicity: NERLYNX can cause fetal harm. Advise patients of potential risk to a fetus and to use effective contraception.
Source: US FDA prescribing information
The following clinically significant adverse reactions are described elsewhere in the labeling: Diarrhea Hepatotoxicity The most common adverse reactions (reported in ≥5% of patients) were: NERLYNX as a single agent: diarrhea, nausea, abdominal pain, fatigue, vomiting, rash, stomatitis, decreased appetite, muscle spasms, dyspepsia, AST or ALT increased, nail disorder, dry skin, abdominal distention, epistaxis, weight decreased, and urinary tract infection. NERLYNX in combination with capecitabine: diarrhea, nausea, vomiting, decreased appetite, constipation, fatigue/asthenia, weight decreased, dizziness, back pain, arthralgia, urinary tract infection, upper respiratory tract infection, abdominal distention, renal impairment, and muscle spasms.
Source: US FDA prescribing information
Gastric acid reducing agents: Avoid concomitant use with proton pump inhibitors. Separate NERLYNX by at least 2 hours before or 10 hours after H 2 -receptor antagonists. Or separate NERLYNX by at least 3 hours after antacids. Strong CYP3A4 inhibitors: Avoid concomitant use. P-gp and moderate CYP3A4 dual inhibitors: Avoid concomitant use. Strong or moderate CYP3A4 inducers: Avoid concomitant use. Certain P-gp substrates: Monitor for adverse reactions of P-gp substrates for which minimal concentration change may lead to serious adverse reactions when used concomitantly with NERLYNX.
Source: US FDA prescribing information
Store at controlled room temperature, 20°C to 25°C (68°F to 77°F), excursions permitted to 15°C to 30°C (59°F to 86°F).
Source: US FDA prescribing information
For healthcare professionals and buyers. This is not medical advice. Treatment decisions belong to the prescriber.
1 presentations of Neratinib, sorted by availability.
| Medicine | Manufacturer | Register | Availability |
|---|---|---|---|
| Nerlynx 40 mg tabletOral | Puma Biotechnology | US FDA | Available on request |
1 brand names across 1 markets.
United States
Approval facts from US FDA, EMA and CDSCO data, and registration status by country where we hold register data.
Conditions linked to Neratinib in public data. This is not a list of approved uses, see the clinical information.
Yes, on request. MedsAcross lists 1 presentations of Neratinib and sources them for licensed hospitals, importers and physicians against valid import documents.
The catalogue lists 1 brand names for Neratinib, including Nerlynx.
Yes. The US FDA first approved Neratinib on 17 July 2017, according to Drugs@FDA.
Yes. Neratinib has a central EU marketing authorisation (status: authorised), according to European Medicines Agency data.
No listed presentation of Neratinib is recorded as needing a cold chain. Storage conditions are shown on each presentation page.
Neratinib is classified under ATC code L01EH02 (Neratinib).
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