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

If you take olmesartan (Benicar) and have ever needed to call pharmacies to check if they have it in stock, you know how tedious that process is. You call one, you're put on hold, they don't have it, you call the next one — repeat. Here are the most efficient ways to check olmesartan stock without spending your afternoon on hold.

The Problem with Calling Pharmacies One by One

Calling pharmacies to check medication availability is frustrating for several reasons:

Wait times can be 10-20 minutes just to speak with a pharmacist

Stock can change between the time you call and the time you arrive

Pharmacy staff sometimes give inaccurate inventory information

You may need to call 5-10 pharmacies before finding stock of a specific strength

Method 1: Use medfinder (They Call For You)

medfinder is built specifically for this problem. You submit your medication name (olmesartan), dosage (5 mg, 20 mg, or 40 mg), and your zip code — and medfinder contacts pharmacies near you to find which ones have it in stock. You get the results texted to you. No calls, no hold music, no wasted trips.

This is especially useful for less-common doses like olmesartan 5 mg, or combination products like Benicar HCT, Azor, or Tribenzor, which many pharmacies don't routinely carry.

Method 2: Check Your Pharmacy's App or Website

Some major pharmacy chains now offer real-time or near-real-time inventory checks through their apps or websites:

CVS: The CVS app and website allow you to check whether a prescription is ready or being filled, but does not typically show inventory availability before submitting.

Walgreens: You can request a refill online, and the pharmacy will contact you if they need to order it. However, this doesn't tell you proactively whether stock is available.

Walmart: Walmart Pharmacy's website allows you to check whether a medication is available at a specific location for some drugs, though coverage is incomplete.

The limitation of all these apps is that they rarely give definitive in-stock information before you submit a prescription — and they only cover their own network.

Method 3: Ask Your Current Pharmacy to Check Its Network

If you're a patient at a chain pharmacy like CVS or Walgreens, the pharmacist can sometimes check inventory at nearby locations within the same chain's system. This doesn't help if availability is low across all locations, but it can save you time within one chain's network.

Method 4: Switch to Mail-Order Pharmacy

For a long-term maintenance medication like olmesartan, mail-order pharmacy is the most reliable option. Mail-order pharmacies like Express Scripts, OptumRx, and CVS Caremark have large central warehouses that maintain comprehensive inventories and can typically fill all olmesartan strengths. Ordering a 90-day supply means you rarely run out or need to check stock.

What to Do When You Can't Find Olmesartan in Stock

If none of the above methods turn up a pharmacy with your olmesartan in stock, contact your doctor. They can prescribe a temporary alternative ARB, or determine whether a different pharmacy type (such as a compounding pharmacy or mail-order) can fill your prescription more quickly. Read more in our Olmesartan Shortage Update for 2026.

Quick Checklist: Finding Olmesartan in Stock

Use medfinder to have pharmacies called on your behalf

Check your pharmacy chain's app or website for location availability

Ask your pharmacist to check nearby locations within the same chain

Ask your pharmacist to special-order if the delay is only 1-3 days

Consider switching to mail-order for future fills (90-day supply)

Contact your doctor if no pharmacy has it — they can prescribe a temporary alternative