How to Help Your Patients Save Money on Arimidex: A Provider's Guide to Savings Programs

Anastrozole (Arimidex) is one of the most cost-manageable medications in oncology — yet patients continue to abandon prescriptions at the pharmacy counter due to unexpected out-of-pocket costs. Generic anastrozole can be obtained for as little as $5 per month with a discount card, yet some patients are still paying $100+ because they don't know what options are available. This guide helps prescribers and their teams implement practical cost reduction strategies for patients on anastrozole.

Why Medication Cost Adherence Matters for Anastrozole

Non-adherence to anastrozole is a well-documented clinical challenge. Studies consistently show that a significant proportion of breast cancer patients discontinue aromatase inhibitor therapy early — with cost being a major contributing factor. For a medication prescribed for up to 10 years, even small annual cost barriers compound into significant adherence problems. Addressing the economics of anastrozole at the prescribing visit is not just a convenience service — it's a clinical intervention.

Understanding the Cost Landscape for Anastrozole

Retail (cash) prices for generic anastrozole range from approximately $110 to $258 for a 30-day supply — an artificially inflated figure due to pharmacy markup structures. With pharmacy discount cards, the actual cost drops to $5-$13 per month. With insurance, most patients pay a $10-$30 copay for a preferred generic.

However, patients who are uninsured, underinsured, or whose insurance has placed anastrozole on a higher tier may be paying significantly more. These are the patients most at risk of cost-related non-adherence and who benefit most from proactive assistance.

Step 1: Prescribe Generic Anastrozole and Ensure 90-Day Supplies

The two most impactful prescribing decisions for cost reduction are:

• Write for generic anastrozole (not brand-name Arimidex). Generic anastrozole is bioequivalent and dramatically less expensive. Most insurance plans only cover the generic anyway.
• Prescribe 90-day supplies. Per-dose cost is often lower for 90-day supplies versus 30-day, and mail-order 90-day prescriptions frequently offer additional savings. This also reduces refill trips and improves adherence.

Step 2: Teach Patients About Discount Cards at the Prescribing Visit

Pharmacy discount programs are not insurance — they're negotiated discount cards that anyone can use, with or without coverage. Consider having your medical assistant hand patients a brief instruction sheet at the prescribing visit:

• GoodRx.com: Currently showing anastrozole prices as low as $5 per month at some pharmacies. Coupons are free, reusable, and require no membership.
• SingleCare: Shows prices as low as $13 per month at some pharmacies. Also requires no membership. Prices vary by location — patients should check both GoodRx and SingleCare.
• Cost Plus Drugs (Mark Cuban): costplusdrugs.com offers transparent, low-markup pricing. Available for patients willing to use mail-order.

Important note: Discount cards cannot be combined with insurance. Patients should use whichever is cheaper for their specific situation — in some cases, a GoodRx discount card is actually less expensive than the insurance copay.

Step 3: Know the Patient Assistance Programs

For uninsured or underinsured patients who cannot afford anastrozole even with discount cards, patient assistance programs (PAPs) can provide significant help:

• Good Days Patient Assistance Program (1-877-968-7233 | mygooddays.org): Provides financial assistance with medication costs for insured patients meeting income criteria who are diagnosed with specific diseases. Application can be initiated by phone or online.
• NeedyMeds.org: Searchable database of assistance programs for anastrozole by income level, insurance status, and state. A useful first stop for your social work or patient navigation team.
• RxAssist.org: A comprehensive pharmaceutical assistance program database often used by social workers and financial counselors in oncology practices.
• Breast cancer-specific foundations: Organizations like the Patient Advocate Foundation, CancerCare, and Susan G. Komen Financial Assistance Program also provide medication cost grants for breast cancer patients.

Step 4: Address Medicare Part D Optimization

Many of your anastrozole patients will be on Medicare, given the postmenopausal indication. Medicare optimization for anastrozole includes:

• Remind patients to review their Part D plan each year during open enrollment (October 15 – December 7) to ensure anastrozole remains on a favorable formulary tier
• Medicare Part D's 2025 $2,000 annual out-of-pocket cap (rising to $2,100 in 2026) benefits cancer patients on multiple medications — once they hit the cap, anastrozole is covered at 100% for the rest of the year
• Low Income Subsidy (Extra Help) from Medicare may provide zero or minimal copays for anastrozole for qualifying low-income patients — refer to your social work team or State Health Insurance Assistance Program (SHIP) counselor

Step 5: Consider Prior Authorization Proactively

Some insurance plans may require prior authorization for anastrozole, particularly if a patient is starting treatment or if they are switching from tamoxifen. Proactive submission of the prior authorization at the time of prescribing — rather than waiting for a pharmacy rejection — prevents delays and reduces patient stress.

Documentation that your practice should keep ready for PA submissions:

• Pathology confirming hormone receptor-positive breast cancer (ER/PR status)
• Postmenopausal status documentation
• Clinical rationale for anastrozole versus other endocrine therapies if step therapy applies

Building Cost Assistance Into Your Practice Workflow

High-performing oncology practices integrate financial navigation into the care pathway. Consider:

• Including a patient financial counselor or navigator in the initial oncology visit or follow-up for new anastrozole prescriptions
• Providing patients with a one-page resource sheet listing GoodRx, SingleCare, and relevant PAP contact information at time of prescribing
• Flagging patients who fill via specialty pharmacy or who have complex insurance situations for proactive financial counseling outreach
• Screening for cost-related adherence barriers at each follow-up visit using a simple question: "Have you had any difficulty affording or filling your anastrozole prescription?"

Finding Anastrozole for Patients Who Struggle to Fill

For patients who report both availability and cost challenges, medfinder for providers can help your team locate which pharmacies near the patient have anastrozole in stock — reducing the staff burden of making individual pharmacy calls. Read our companion guide on helping patients find Arimidex in stock for a complete provider protocol.