TYKERB (lapatinib) Patient Assistance Program
Don’t let the high cost of brand specialty HER2-positive breast cancer therapy disrupt your treatment. We help eligible patients access Tykerb (lapatinib) for as little as $69.95 per month through the manufacturer’s Patient Assistance Program.
- Clear & Transparent Pricing
- Paperwork & Doctor-Coordination
- Comprehensive Support: From Application to Entire Journey.
- Annual Re-certification And Refills Management
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Key Takeaways:
- Tykerb (lapatinib) is FDA-approved in combination with capecitabine for advanced or metastatic HER2-positive breast cancer in patients who have received prior therapy including an anthracycline, taxane, and trastuzumab, and in combination with letrozole for postmenopausal HR-positive, HER2-positive metastatic breast cancer.
- Without assistance, brand Tykerb costs commonly run approximately $3,500–$4,500 per 30-day supply.
- Through AffordMyPrescriptions, qualifying patients can access Tykerb for a flat $69.95 per month — our advocacy team manages the entire enrollment, refills, and renewal process.
- Generic lapatinib is now available in the U.S. at substantially lower cost. Other HER2-targeted therapies include trastuzumab (Herceptin) and biosimilars, pertuzumab (Perjeta), T-DM1 (Kadcyla), T-DXd (Enhertu), neratinib (Nerlynx), and tucatinib (Tukysa). Treatment choice depends on prior therapies and disease characteristics.
What Is Tykerb Prescription Assistance Program?
The Tykerb Prescription Assistance Program is a manufacturer-sponsored initiative that provides Tykerb at little or no medication cost to qualifying patients based on income and insurance status. The program is designed for HER2-positive metastatic breast cancer patients who are uninsured or underinsured.
Navigating the program on your own means dealing with eligibility verification, oncology coordination, HER2-testing documentation, prior-authorization documentation, specialty pharmacy logistics, and renewal deadlines.
AffordMyPrescriptions eliminates that burden. For a flat $69.95 per month, our Patient Advocates handle every step of your enrollment, from initial application through ongoing refill coordination and re-certification.
Pharmacy Price Comparison
- Without assistance, brand Tykerb costs roughly $3,500–$4,500/month. Generic lapatinib is much cheaper. A Patient Assistance Program is the meaningful path forward — if you qualify:
| Pharmacy(With Coupon) | PrIce (30-Day)* | You Save W/ Us |
|---|---|---|
| Walgreens (brand) | ~$4,400 | Save ~$4,330/mo |
| CVS Pharmacy (brand) | ~$4,500 | Save ~$4,430/mo |
| Walmart (brand) | ~$3,700 | Save ~$3,630/mo |
| Costco (brand) | ~$3,600 | Save ~$3,530/mo |
Generic lapatinib | ~$900 | Generic low |
*Just a heads-up — retail prices are estimates based on public data and vary by pharmacy. AffordMyPrescriptions Advocacy Service bypasses this by using drug manufacturer programs to secure your medication directly at no cost or retail price.
Our Pricing:
$69.95 Per month
1 Medications
$79.95 Per Month
2 Medications
$89.95 Per Month
3 Medications
$99.95 Per Month
4+ Medications
Why choose us For Your Tykerb Prescription Program?
The Patient Assistance Program is free to apply for and provides Tykerb at no medication cost if approved. Our $69.95/month service covers full advocacy. With generic lapatinib now available at lower cost, we’ll help your oncologist determine the best path.
Enroll
Complete a simple eligibility form so our team can determine if you may qualify for medication assistance programs.
We Advocate
Our specialists help gather documentation, complete applications, and coordinate with program providers.
Receive Medication
Once approved, you may receive your medication through the assistance program while we help manage ongoing paperwork and renewals.
Discount Coupons vs. Patient Assistance Programs
Many patients try discount cards first. Here’s why the Patient Assistance Program through AffordMyPrescriptions is the better long-term solution for Tykerb:
Limitations of Coupons
- Prices fluctuate — savings aren’t guaranteed month-to-month
- Copay accumulators may prevent savings from counting toward deductible
- Coupon cards expire and require constant renewal
Still $3,500–$4,500 per month even with the best discount
- Can’t be used with Medicare, Medicaid, or government insurance
Advantages of PAP Through Us
- Fixed $69.95/month — never changes regardless of retail price
- No expiration — continuous access as long as you qualify
- Medication supplied directly through the assistance program
- We manage all paperwork, refills, and annual renewals
- If denied, we explore alternative savings on your behalf
DO YOU QUALIFY?
Eligibility is generally determined by annual household income and insurance status. Most programs follow guidelines that include limits of up to $40,000 for individuals, $60,000 for couples, and $100,000 for larger families. Because requirements vary by program and household, we encourage you to contact AffordMyPrescriptions directly so we can review your specific situation and determine if you qualify for Tykerb assistance.
- You Are A U.S. Citizen Or Legal Resident
- You Have A Valid Tykerb Prescription From A Licensed U.S. Healthcare Provider
- You Are Uninsured Or Underinsured And Cannot Afford Your Medication
- You Have Recently Experienced A Change In Financial Circumstances That Affects Your Ability To Pay
Not sure if you qualify? Our pre-qualification check is completely free. If we can’t help, you won’t be charged.
Understanding Tykerb:
Tykerb (lapatinib) is an oral tyrosine kinase inhibitor that targets both HER2 (ErbB2) and EGFR (ErbB1). It is used for advanced or metastatic HER2-positive breast cancer, typically in combination with capecitabine or letrozole.
How Tykerb Works:
Lapatinib is a small-molecule drug that targets HER2-positive breast cancer, an aggressive form of cancer driven by the overexpression of the HER2 receptor. Unlike monoclonal antibodies that target HER2 from outside the cell, lapatinib works from the inside by binding to the ATP-binding site of HER2 and EGFR kinases to block cell growth signaling. Because it can cross the blood-brain barrier, it is uniquely able to target brain metastases. When combined with capecitabine chemotherapy, it provides clinical benefits for patients whose metastatic cancer has progressed on prior therapies.
Form and use:
Lapatinib (Tykerb) is an oral medication taken once daily as a tablet, and it must strictly be taken on an empty stomach—either one hour before or one hour after a meal. Taking this medication with food significantly increases its absorption, which can dangerously raise its toxicity levels. The standard daily dose is 1250 mg (5 tablets) when combined with capecitabine, or 1500 mg (6 tablets) when combined with letrozole.
Generic availability:
A generic version of lapatinib is available in the U.S. at a substantially lower cost than the brand-name Tykerb. It is part of a broader suite of HER2-targeted therapies that include monoclonal antibodies, antibody-drug conjugates, and other oral options like neratinib and tucatinib. The specific choice among these therapies depends on a patient’s prior treatments, disease characteristics, and whether there is brain involvement.
Warnings:
Tykerb carries serious warnings for severe diarrhea, which is often dose-limiting and requires proactive antidiarrheal management. It can also cause severe liver toxicity (hepatotoxicity) and heart issues (cardiotoxicity/LVEF decline), both of which require regular medical monitoring before and during treatment. Additional risks include interstitial lung disease, severe skin reactions, QT prolongation, and embryo-fetal toxicity. Finally, it has significant drug interactions with QT-prolonging drugs as well as CYP3A inhibitors and inducers.
FAQ (Frequently Asked Questions)
How Much Does Tykerb Cost Without Insurance?
Brand Tykerb costs approximately $3,500–$4,500 per 30-day supply. Generic lapatinib is substantially cheaper. Through AffordMyPrescriptions, qualifying patients receive Tykerb at no medication cost — our $69.95 monthly fee covers full advocacy and program management.
Why Take Tykerb On An Empty Stomach?
Food significantly increases lapatinib absorption (3–4 fold), which can dangerously raise drug levels and toxicity. Take Tykerb at least 1 hour before or 1 hour after a meal. Avoid grapefruit and grapefruit juice (which also raise lapatinib levels). This dosing requirement is essential.
How Is Tykerb Different From Other HER2 Therapies?
Tykerb is an oral small-molecule TKI that crosses the blood-brain barrier — making it potentially useful for brain metastases. Trastuzumab (Herceptin) and biosimilars are IV monoclonal antibodies (don’t cross BBB well). Pertuzumab (Perjeta), T-DM1 (Kadcyla), and T-DXd (Enhertu) are also antibody-based. Newer oral options include tucatinib (Tukysa, also crosses BBB and has good brain-metastasis activity) and neratinib (Nerlynx). Treatment choice depends on prior therapies, brain involvement, and the rest of your regimen.
What Should I Do About Diarrhea On Tykerb?
Diarrhea is one of the most common Tykerb side effects, especially with capecitabine. Start loperamide at the first sign of diarrhea — keep loperamide on hand from the start. Stay hydrated. Severe or persistent diarrhea may require dose reduction or temporary discontinuation. Tell your oncologist about diarrhea that lasts more than 24 hours despite loperamide or is associated with fever, blood, or dizziness.
How Will My Doctor Monitor For Side Effects?
LFTs are checked before starting and every 4–6 weeks during treatment. LVEF (cardiac ejection fraction by echocardiogram or MUGA) is checked at baseline and periodically. ECG may be done to monitor for QT prolongation. Routine CBC and chemistry panels are also done.Tell your oncologist about jaundice, severe fatigue, shortness of breath, palpitations, or persistent diarrhea.
Are There Drug Interactions I Should Know About?
Yes. Lapatinib is metabolized by CYP3A. Strong CYP3A inhibitors (ketoconazole, itraconazole, ritonavir, grapefruit, etc.) substantially raise levels. Strong CYP3A inducers (rifampin, carbamazepine, phenytoin, phenobarbital, St. John’s wort) substantially lower levels and may reduce effectiveness. Tykerb also raises levels of some other CYP3A substrates (digoxin, midazolam). Tell every prescriber and pharmacist about Tykerb.
What If My Application Is Denied?
If denied, we explore alternatives — switching to generic lapatinib (substantially cheaper), or to another HER2-targeted therapy appropriate for your line of treatment (T-DM1, T-DXd, tucatinib, neratinib), the manufacturer’s copay program for commercially insured patients, or independent foundations such as Susan G. Komen, Living Beyond Breast Cancer, the PAN Foundation, or HealthWell Foundation. If we cannot find a path, you won’t be charged our service fee.
Take Control of Your Medication Costs
If you are struggling with the high cost of Tykerb, our team may be able to help you access assistance programs — or guide you to generic lapatinib if it fits your situation. Check your eligibility today.
Submit Enrollment Form
Start free by filling out a simple online form.
Receive Welcome Call
Our specialist will contact you for a quick welcome call.
We Manage The Process
Our team handles everything, so you can focus on your health.