Updated: March 28, 2026

Alternatives to Benicar If You Can't Fill Your Prescription

Author

Peter Daggett

Summarize with AI

Can't Find Benicar? Here Are Your Options
What Is Benicar and How Does It Work?
Why Might You Need an Alternative?
Alternative #1: Losartan (Cozaar)
Alternative #2: Valsartan (Diovan)
Alternative #3: Irbesartan (Avapro)
Alternative #4: Telmisartan (Micardis)
What About ACE Inhibitors?
How to Switch Safely
Final Thoughts

Can't fill your Benicar prescription? Learn about safe, effective alternatives to Olmesartan including Losartan, Valsartan, and other ARBs.

Can't Find Benicar? Here Are Your Options

If your pharmacy is out of Benicar (Olmesartan Medoxomil) or you're looking for a more affordable option, you're not stuck. Several other medications work in the same way and can manage your blood pressure just as effectively.

In this guide, we'll explain how Benicar works, then walk through the best alternatives so you can have an informed conversation with your doctor.

Important: Never switch blood pressure medications on your own. Always talk to your doctor before making any changes to your prescription.

What Is Benicar and How Does It Work?

Benicar is the brand name for Olmesartan Medoxomil, a medication in the angiotensin II receptor blocker (ARB) drug class. It's prescribed to treat high blood pressure (hypertension) in adults and children ages 6 and older.

Here's how it works in simple terms: Your body produces a chemical called angiotensin II that causes blood vessels to tighten. When blood vessels tighten, your blood pressure goes up. Olmesartan blocks angiotensin II from attaching to receptors on your blood vessels. This allows the vessels to relax and widen, which lowers your blood pressure.

For a deeper dive, read our full explainer: How Does Benicar Work? Mechanism of Action Explained.

Most patients take Benicar as a 20 mg or 40 mg tablet once daily. It's available as a standalone tablet or in combination with other blood pressure medications like hydrochlorothiazide (Benicar HCT) or Amlodipine (Azor).

Why Might You Need an Alternative?

There are several reasons patients look for Benicar alternatives:

Availability issues — your pharmacy is temporarily out of stock
Cost — brand-name Benicar costs $200–$350 per month without insurance
Side effects — some patients experience side effects from Benicar, including the rare but serious sprue-like enteropathy
Insurance formulary changes — your plan may prefer a different ARB
Drug interactions — your doctor may need to avoid certain combinations (learn more: Benicar Drug Interactions: What to Avoid)

Alternative #1: Losartan (Cozaar)

Losartan is the most widely prescribed ARB in the United States and is often considered the first-line choice in its class.

How it works: Same mechanism as Olmesartan — blocks angiotensin II receptors
Approved uses: Hypertension, diabetic nephropathy (kidney disease), and stroke prevention in patients with high blood pressure and an enlarged heart
Typical dose: 25 mg to 100 mg once daily
Availability: Widely available as a generic; very rarely in shortage
Cost: Generic Losartan is one of the most affordable ARBs, typically $4 to $10 per month with a coupon

Key difference from Benicar: Losartan has additional FDA-approved indications for diabetic kidney disease and stroke prevention. It has a shorter half-life, so some patients may need twice-daily dosing for optimal blood pressure control.

Alternative #2: Valsartan (Diovan)

Valsartan is another popular ARB with a strong track record for treating high blood pressure and heart conditions.

How it works: Blocks angiotensin II receptors, just like Olmesartan
Approved uses: Hypertension, heart failure, and post-heart attack care
Typical dose: 80 mg to 320 mg once daily
Availability: Widely available as a generic
Cost: Generic Valsartan typically costs $10 to $20 per month with a coupon

Key difference from Benicar: Valsartan has additional FDA approval for heart failure and post-MI (heart attack) use, making it a good choice for patients with cardiovascular disease beyond just hypertension.

Alternative #3: Irbesartan (Avapro)

Irbesartan is particularly well-studied in patients with type 2 diabetes who have kidney problems.

How it works: Blocks angiotensin II receptors
Approved uses: Hypertension and diabetic nephropathy in patients with type 2 diabetes
Typical dose: 150 mg to 300 mg once daily
Availability: Available as a generic
Cost: Generic Irbesartan typically costs $10 to $20 per month

Key difference from Benicar: Irbesartan is often preferred for patients with diabetes-related kidney disease due to strong clinical trial evidence supporting kidney protection.

Alternative #4: Telmisartan (Micardis)

Telmisartan has the longest half-life of any ARB, which means it provides the most consistent 24-hour blood pressure control.

How it works: Blocks angiotensin II receptors
Approved uses: Hypertension and cardiovascular risk reduction in patients unable to take ACE inhibitors
Typical dose: 20 mg to 80 mg once daily
Availability: Available as a generic
Cost: Generic Telmisartan typically costs $10 to $25 per month

Key difference from Benicar: Telmisartan's longer half-life makes it a strong option for patients whose blood pressure tends to rise in the early morning hours. It also has cardiovascular risk reduction data similar to the ACE inhibitor Ramipril.

What About ACE Inhibitors?

If you can't tolerate ARBs as a class, your doctor might consider an ACE inhibitor instead. These medications work on the same renin-angiotensin system but at a different step. Common options include:

Lisinopril — very affordable ($4–$10/month), widely available
Enalapril — well-studied, available as generic
Ramipril — has strong cardiovascular protection data

The main difference? ACE inhibitors can cause a persistent dry cough in about 10–15% of patients, which is the most common reason people switch to an ARB like Benicar in the first place.

How to Switch Safely

Switching blood pressure medications should always involve your doctor. Here's what to expect:

Your doctor will choose the best alternative based on your health history, other medications, and any conditions like diabetes or kidney disease
The transition is usually straightforward — most patients can switch from one ARB to another without a washout period
Your blood pressure may need monitoring for a few weeks after the switch to make sure the new medication is working well
Report any new side effects to your doctor right away

Final Thoughts

Not being able to fill your Benicar prescription is stressful, but you have several excellent alternatives. All ARBs work through the same mechanism, and switching between them is common and generally well-tolerated.

Before switching, try using Medfinder to see if Olmesartan is available at another pharmacy near you. If you do need to switch, your doctor can help you find the best option for your specific situation.

More helpful guides:

Frequently Asked Questions

All ARBs (angiotensin II receptor blockers) work through the same mechanism as Benicar. Losartan, Valsartan, Irbesartan, and Telmisartan are all effective alternatives. Losartan is the most commonly prescribed and most affordable, typically costing $4 to $10 per month for generic.

Yes, switching from Benicar (Olmesartan) to Losartan is common and generally straightforward. Your doctor will determine the appropriate Losartan dose — a typical conversion is Olmesartan 20 mg to Losartan 50 mg, or Olmesartan 40 mg to Losartan 100 mg. Your blood pressure should be monitored for a few weeks after switching.

Yes. Clinical studies show that all ARBs are effective at lowering blood pressure. Some head-to-head studies suggest Olmesartan may produce slightly larger blood pressure reductions than Losartan, but the clinical difference is small. Your doctor can adjust the dose of any ARB to achieve your blood pressure goals.

Yes. Never switch blood pressure medications on your own. Your doctor needs to choose the right alternative and dose based on your health history, other medications, and conditions like diabetes or kidney disease. Call your doctor's office — they can often handle this with a quick phone call or telehealth visit.

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