⚕️ Prices shown are estimated cash prices for informational purposes only. Always verify with your pharmacy. Not medical advice.

Isosorbide Mononitrate Price Comparison

60mg · 30-count · Heart · Brand: Imdur · Generic available

Cheapest Cash Price
$15.50
at Costco · 60mg · 30-count
GoodRx Low Est.
$13.48
with discount card
Cash Price by Pharmacy — 60mg · 30-count
PharmacyCash PricePer-30-Day Equiv.
Costco Cheapest$15.50$15.50
Walmart$17.55$17.55
Kroger$19.89$19.89
Target$22.82$22.82
Rite Aid$62.89$62.89
CVS$65.82$65.82
Walgreens$70.21$70.21

Brand vs. Generic: Imdur vs. Isosorbide Mononitrate ER

The generic form of Isosorbide Mononitrate (Isosorbide Mononitrate ER) contains the same active ingredient and is bioequivalent to the brand. Ask your pharmacist to dispense the generic — it works the same way, typically at a fraction of the brand-name cost.

Brand: Imdur
Varies
brand pricing not tracked separately
Generic: Isosorbide Mononitrate ER
$15.50
cheapest at Costco

Tip: In most states, pharmacists can substitute a generic unless your prescriber writes "dispense as written" (DAW).

About Isosorbide Mononitrate

Isosorbide Mononitrate (60mg) is sold under the brand name Imdur and the generic Isosorbide Mononitrate ER. A standard supply tracked here is 30 units at 60mg.

Why Do Prices Vary by Pharmacy?

Pharmacy pricing is not regulated in the United States, so retailers set their own cash prices. Large retailers like Walmart and Costco typically offer lower prices on generics because they use prescriptions as a traffic driver. Chain pharmacies like CVS and Walgreens tend to charge more for the same medication.

Heart medications are typically maintenance therapy taken indefinitely, so comparing pharmacy prices can produce substantial long-term savings.

How to Pay Less for Isosorbide Mononitrate

Shop around. The cheapest pharmacy tracked here (Costco at $15.50) charges meaningfully less than the most expensive option ($70.21). A quick call can save real money.

Ask for the generic. If your doctor prescribed the brand-name Imdur, ask your pharmacist whether a generic is available. In most states, pharmacists can substitute a generic unless the prescriber writes "dispense as written."

Use a discount card. Services like GoodRx, SingleCare, and WellRx can sometimes negotiate prices lower than retail cash. The estimated low price for Isosorbide Mononitrate is around $13.48.

💡 Tip: Walmart's $4 and $10 generic drug program covers many common generics. Call your local Walmart pharmacy to ask if Isosorbide Mononitrate is on their list.

Does Insurance Cover Isosorbide Mononitrate?

Coverage depends on your specific plan and formulary. Most medications in this category are covered under standard health insurance, typically in Tier 1 or Tier 2. If your copay is higher than the cash price above, it may be cheaper to pay out of pocket — ask your pharmacist to compare.

About This Price Data

Prices shown are estimated retail cash prices modeled from CMS's public NADAC (National Average Drug Acquisition Cost) dataset, cross-referenced against typical major-chain retail markups. Actual prices vary by location and change frequently. RxCostCheck does not collect or sell your health data. Learn more →

Frequently Asked Questions

How much does Isosorbide Mononitrate cost without insurance?

Without insurance, Isosorbide Mononitrate (60mg) ranges from $15.50 at Costco to $70.21 at Walgreens. With a discount card, the price can be as low as $13.48.

Where is the cheapest place to fill Isosorbide Mononitrate?

Costco currently offers the lowest estimated cash price at $15.50 for 30 60mg.

Is there a generic for Isosorbide Mononitrate?

Yes — the generic Isosorbide Mononitrate ER is available and bioequivalent to Imdur. Ask your pharmacist to dispense the generic to save money.

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