How to Check If a Pharmacy Has Arimidex in Stock (Without Calling)

If you've ever needed to find out whether a specific pharmacy has Arimidex (anastrozole) in stock, you know the experience: hold music, unhelpful automated systems, and pharmacists who are too busy to search inventory quickly. There has to be a better way — and in 2026, there are several options worth knowing about.

Why Pharmacies Don't Always Show Inventory Online

Unlike retail stores that show product availability on their websites, pharmacies do not typically display prescription drug inventory online. There are several reasons for this:

• Prescription drug inventory is dynamic and changes frequently throughout the day
• Regulatory and liability concerns prevent most pharmacies from publishing drug availability data publicly
• Pharmacy inventory systems are not designed for consumer-facing API access the way retail systems are

This means that actually confirming stock requires a human check — either you calling, or a service that calls on your behalf.

Method 1: Use medfinder (Most Efficient)

The most efficient approach is medfinder.com. Here's how it works:

1. You provide your medication (anastrozole/Arimidex), dosage (1 mg), and your location
2. medfinder calls pharmacies near you to ask if they have it in stock
3. You receive the results by text — which pharmacies have it, so you can go straight to the one that does

This eliminates the need for you to call multiple pharmacies yourself. Instead of spending an hour on hold across five different pharmacies, medfinder does the work for you.

Method 2: Use GoodRx to Find a Pharmacy (and Compare Prices)

While GoodRx doesn't directly show real-time pharmacy inventory, it does show which pharmacies in your area have pricing data for anastrozole — meaning those pharmacies stock it and can potentially fill it. Using GoodRx to see available pharmacies near you is a reasonable shortcut. You'll still need to call to confirm availability if you're in a hurry, but the GoodRx pharmacy list gives you a targeted starting point.

As a bonus, GoodRx also shows the price at each pharmacy, so you can find the pharmacy with both the best price and the most reliable availability.

Method 3: Your Pharmacy App's Transfer Feature

Many large pharmacy chains (CVS, Walgreens, Walmart) allow you to transfer your prescription through their mobile app or website. While this doesn't directly show stock levels, a successful transfer initiation to a different location suggests that location should be able to fill the prescription. Some apps also allow you to message the pharmacy directly, which is faster than calling during busy periods.

Method 4: Call at Off-Peak Hours

If you do need to call, timing matters. The busiest times at pharmacies are typically Monday mornings (post-weekend prescription backlog), weekday lunch hours, and the hour before closing. The best times to call are mid-morning on Tuesdays through Thursdays, or mid-afternoon on weekdays. Pharmacists can check inventory much more quickly when they're not being juggled with other demands.

When you call, be specific: "I'm looking for generic anastrozole 1 mg tablets, a 30-day supply [or 90-day]. Do you currently have this in stock?" Having the NDC number from your current bottle can also speed up the pharmacist's check.

Method 5: Ask Your Oncologist's Office

Oncology nursing staff and medical assistants in busy cancer centers often know which pharmacies in the area have the most reliable anastrozole supply — because they field these calls regularly from other patients. A quick call to your oncologist's office asking "Which pharmacy do you recommend for anastrozole? Mine is out of stock" can yield an immediate, informed answer.

Preventing the Problem: Get a 90-Day Supply

The most reliable way to avoid pharmacy availability crises is to maintain a larger supply buffer. Ask your oncologist to prescribe a 90-day supply. With three months' worth of anastrozole on hand, a brief pharmacy stock-out becomes a minor inconvenience instead of a crisis. Most insurance plans and mail-order pharmacies support 90-day supplies of maintenance medications.

Bottom Line

There is no online tool that shows real-time pharmacy inventory for prescription drugs — but medfinder fills that gap by calling pharmacies on your behalf. Combine that with the GoodRx pharmacy list for price comparisons, and you have the most efficient approach to finding anastrozole in stock. For more context on why Arimidex can sometimes be hard to find, read why Arimidex is hard to find. And if cost is also a concern, don't miss our guide on how to save money on Arimidex.