60mg · 30-count · Heart · Brand: Imdur · Generic available
| Pharmacy | Cash Price | Per-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 |
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.
Tip: In most states, pharmacists can substitute a generic unless your prescriber writes "dispense as written" (DAW).
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.
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.
Isosorbide Mononitrate belongs to a class of medications called nitrates. It works by relaxing and widening blood vessels, and it's typically prescribed to prevent chest pain (angina) rather than to treat a sudden episode already in progress — patients are often also prescribed a fast-acting nitroglycerin product separately for acute chest pain, since this medication isn't meant for that purpose.
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.
Isosorbide mononitrate has been an inexpensive generic for decades, with no manufacturer copay card involved — the cash prices above already reflect standard low-cost generic pricing.
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. Prior authorization is uncommon for isosorbide mononitrate given its decades-long generic status and its established role in angina prevention.
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 →
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 typically 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.
What if my insurance doesn't cover Isosorbide Mononitrate at all?
Ask your prescriber whether a covered therapeutic alternative in the same drug class exists, or ask your pharmacist about a formulary exception or medical-necessity appeal — some plans will cover an otherwise-excluded drug once that documentation is on file. In the meantime, the cash and discount-card pricing shown above is usually the fastest fallback.
Does a 90-day supply of Isosorbide Mononitrate cost less than three 30-day fills?
Often, yes — many pharmacies and insurance plans price a 90-day fill at a lower effective per-dose cost than separate 30-day fills, and some mail-order pharmacy benefits are built specifically around 90-day supplies. Ask your pharmacist or insurer whether a 90-day option is available for this medication before assuming the count shown above is your only choice.
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