Isosorbide Mononitrate ER is a generic extended-release prescription medication that prevents chest pain (or angina) in patients with coronary artery disease. On average, 30, 30mg tablets of Isosorbide Mononitrate ER costs $79.25, but you could pay $9.00 for 30, 30mg tablets with a free SingleCare Isosorbide Mononitrate ER coupon.
Edit your dosage
14 tablet, 30mgEdit
You have 0.00 in available bonus savings. Bonus savings will be automatically applied to your next eligible prescription fill.
Show this free card to your pharmacist.

Save an extra $3 on any eligible prescription! Sign up for free
Members can save even more
and it's free to join
SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.
Any SingleCare bonus savings, including the $3 signup bonus, may only be used once.
Prices updated: 02/02/2026
Isosorbide Mononitrate ER is a generic extended-release prescription medication that prevents chest pain (or angina) in patients with coronary artery disease. On average, 30, 30mg tablets of Isosorbide Mononitrate ER costs $79.25, but you could pay $9.00 for 30, 30mg tablets with a free SingleCare Isosorbide Mononitrate ER coupon.
Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.
| Pharmacy | Isosorbide Mononitrate Er Retail Price | Isosorbide Mononitrate Er SingleCare Price |
|---|---|---|
| CVS Pharmacy | $15.00 | $15.00 |
| Walmart | $12.73 | $8.36 |
| Walgreens | $18.41 | $16.24 |
| Kroger Pharmacy | $19.09 | $8.12 |
| Albertsons Pharmacy | $29.40 | $18.40 |
These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.
Isosorbide Mononitrate ER is a generic extended-release prescription medication that prevents chest pain (or angina) in patients with coronary artery disease. On average, 30, 30mg tablets of Isosorbide Mononitrate ER costs $79.25, but you could pay $9.00 for 30, 30mg tablets with a free SingleCare Isosorbide Mononitrate ER coupon.
The generic of Isosorbide Mononitrate ER costs $9.00 for 30, 30mg tablets with a free Isosorbide Mononitrate ER coupon from SingleCare. However, you could pay even less depending on your Rx information. Use the dropdown menu above to enter your Rx info (i.e., brand/generic, form, dosage, quantity) to see the most accurate prices of Isosorbide Mononitrate ER with SingleCare at your local pharmacies.
The average retail price of Isosorbide Mononitrate ER without health insurance is $79.25 for 30, 30mg tablets, but you can save money by using the Isosorbide Mononitrate ER discount card from SingleCare to pay just $9.00 for 30, 30mg tablets. From generics to brand-name prescription drugs, you can save as much as 80% with a SingleCare savings card.
Most insurance plans will cover Isosorbide Mononitrate ER. The amount of your copay depends on your insurance plan. Contact your insurance provider for an out-of-pocket cost estimate and specifics about your plan's coverage.
With SingleCare, Isosorbide Mononitrate ER costs as little as $9.00 for 30, 30mg tablets, which may be lower than your insurance copay. Ask your pharmacist to do a price comparison. You may save more money with SingleCare than with insurance.
Isosorbide Mononitrate ER is usually covered by Medicare Part D and Medicare Advantage prescription drug plans. The out-of-pocket cost of Isosorbide Mononitrate ER with Medicare depends on your plan, deductible, and the coverage stage you’re in.
Although Medicaid coverage varies by state, Isosorbide Mononitrate ER is typically covered by Medicaid, though specific coverage and costs may vary by plan. Follow up with your state's Medicaid agency to get more coverage information.
Isosorbide Mononitrate ER is the generic version of the brand-name drugs Imdur, ISMO, and Monoket.
Long-term drug savings strategies include:
Switching to a cheaper medication (with the advice of your healthcare provider).
Using a savings program like SingleCare that offers free discounts without the need for insurance coverage. Use an Isosorbide Mononitrate ER coupon to pay as little as $9.00 for 30, 30mg tablets. Sign up for SingleCare's free loyalty program to maximize your Isosorbide Mononitrate ER savings and earn bonus savings on every refill.
If you have Medicare, you may be able to reduce your coinsurance of Isosorbide Mononitrate ER with the Medicare Part D Extra Help program.
Even if insurance does not cover Isosorbide Mononitrate ER or you do not use insurance on Isosorbide Mononitrate ER, you can still use a health savings account (HSA) or flexible spending account (FSA) to pay for your prescription.
Savings tip: A SingleCare Isosorbide Mononitrate ER coupon can be used instead of insurance, Medicare, or Medicaid if the copay with your insurance plan is still higher than the price with a SingleCare coupon. Prescription prices change frequently, so it’s important to compare prices before every refill.
Although Isosorbide Mononitrate ER is a less expensive generic version of the drug, there are alternative generic forms in the same class of drugs that may be less expensive. These include nitroglycerin patches, nitroglycerin ointment, and nitroglycerin tablets or nasal sprays. Ask your cardiologist or healthcare provider if you’re interested in trying a Isosorbide Mononitrate ER alternative.
SingleCare coupons are accepted at most major pharmacies and grocery stores, such as Walgreens, Kroger, Walmart, CVS, Safeway, and more. Simply text, email, print, or save your free Isosorbide Mononitrate ER coupon to your mobile wallet and show your pharmacist at checkout.
Keith Gardner, R.Ph., is a graduate of Southwestern Oklahoma State University School of Pharmacy. He has 10 years of community pharmacy experience followed by a 22-year career with a major pharmaceutical company in which he served as a medical information consultant. In that role, Gardner provided medical information to consumers and healthcare providers in numerous disease states. He currently resides in Monument, Colorado, with his wife and three dogs.
...SingleCare is accepted at most national pharmacies and grocers, including the following:
Health education, drug info, wellness & more
SingleCare is a prescription discount service that offers free coupons on thousands of prescription drugs. It can be used whether you have insurance, Medicare, Medicaid, or none of the above, but it cannot be combined with insurance.
SingleCare provides transparent drug pricing, so you can compare discounts at pharmacies near you. Browse singlecare.com to find drug discounts, helpful information about your prescription, and resources to help you make informed health decisions.
Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price. This is a medical discount plan. This is NOT insurance. This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account. The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at www.singlecare.com, or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.
Blog articles are not medical advice. They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911.
© 2026 SingleCare Administrators. All rights reserved
© 2026 SingleCare Administrators. All rights reserved