Isosorbide mononitratePrices, Coupons & Savings
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- MedicationYou saveUS ONLY
- Isosorbide Mononitrate Extended Release (ER)Generic for ImdurRx30mg30 extended release tablets $5.1 USD30 extended release tablets $5.1 USD - 0.17 USD/extended release tabletSave $10.80
- Isosorbide Mononitrate Extended Release (ER)Generic for ImdurRx60mg30 extended release tablets $5.4 USD30 extended release tablets $5.4 USD - 0.18 USD/extended release tabletSave $10.50

Do you need a prescription for isosorbide mononitrate?
Yes, isosorbide mononitrate is only available with a valid physician Rx.
How much is isosorbide mononitrate without Insurance in the US?
Our website gives two competitive savings options to US customers who wish to purchase isosorbide mononitrate, as either a brand or generic, if available. The first is access to medications through our mail-order online pharmacy. The second is by using the Now Patient Rx Advantage Card, which can be used in over 65,000 pharmacies nationwide, across America. If you are insured, then in most cases, the cash price will be significantly cheaper than the copay.
What will my out-of-pocket cost be for isosorbide mononitrate in the US?
There are no out-of-pocket (OOP) costs because we are currently only offering a cash-based option to purchase medications.
Is Now Patient a isosorbide mononitrate savings card?
Yes. Save up to 90% on your isosorbide mononitrate with the FREE Now Patient Rx Advantage card*.
*Based on the difference between the U&C submitted by the pharmacy and the price the patients pay.
Can you handle Rx transfers for home delivery in the US?
Yes. If you use the mail-order online pharmacy option, then we can handle requests by you to have your prescription transferred to our pharmacy for home delivery. We can even help you manage your refills by giving you timely reminders, so you do not run out of your medication.
Is Now Patient a isosorbide mononitrate coupon provider in the US?
No. Now Patient does not provide isosorbide mononitrate coupons or FREE isosorbide mononitrate samples.
Do you accept commercial, Medicare or Medicaid coverage for isosorbide mononitrate in the US?
No. Currently, we only offer cash-based options for purchase, therefore we do not require your insurance benefit details. In the future, our plan is to be able to handle commercial insurance, Medicare and Medicaid including cases where you have multiple health plans that provide benefit coverage (e.g. Medicaid and Commercial). We also anticipate being able to handle more complex scenarios such as using primary insurance combined with a manufacturer copay assistance program.
Does Now Patient work with Medicare?
Our cash-based prices for medications are typically cheaper than Medicare copays. We do not bill Medicare Part D (standalone drug coverage) or Medicare Advantage (combined health and drug coverage). When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.
Does Now Patient work with Commercial Insurance?
Our cash-based prices for medications are typically cheaper than commercial plan copays. We do not bill your commercial plan. When you purchase your medication from Now Patient, you will be doing so out of your pocket. The spend will not count towards your plan deductibles or gaps.
What should you do if you use too much isosorbide mononitrate?
Call your doctor right away or seek immediate medical attention if your symptoms do not improve or they become worse after using isosorbide mononitrate. You can also call 800-222-1222 to reach the American Association of Poison Control Centers or use its online resource if you think you’ve used too much isosorbide mononitrate. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.
If you think it is an emergency, call 999 or find your nearest A&E
If you need help now, but it’s not an emergency go to 111.nhs.uk or call 111. Alternatively you can speak to one of our pharmacists or use the Now Patient app to make an appointment with your GP.
What should I do if I miss my dose?
There are occasions when people forget to take their medication at correct prescribed times. This may not only have an effect on potentially making the medication less effective but it may also inadvertently lead to taking doses too close together, thereby increasing the risks of side effects.
Click here to find out what to do if you forgot to take your medication
FDA approval of isosorbide mononitrate
Isosorbide mononitrate is approved by the U.S. Food and Drug Administration (FDA) for medical use.
US brand name of isosorbide mononitrate
Isosorbide mononitrate is available under various brand names, including Imdur, Ismo and Monoket. These brands are manufactured by different pharmaceutical companies.
UK brand name of isosorbide mononitrate
In the UK, isosorbide mononitrate is available under the brand name Isotard, Imdur.
Availability of isosorbide mononitrate
Isosorbide mononitrate is available as a prescription medication and is not available over-the-counter (OTC).
NHS prescription (UK) for isosorbide mononitrate
Isosorbide mononitrate is available in the UK with an NHS prescription.
FDA approval for isosorbide mononitrate
Isosorbide mononitrate has been approved by the U.S. Food and Drug Administration (FDA) for the treatment and prevention of angina pectoris (chest pain) caused by coronary artery disease.
Conditions treated by isosorbide mononitrate
Isosorbide mononitrate is used to prevent angina caused by heart disease.
Mechanism of action
Isosorbide mononitrate belongs to the class of drugs known as nitrate vasodilators. It works by relaxing and widening the blood vessels, allowing more blood to flow to the heart and reducing the workload of the heart.
Forms of isosorbide mononitrate
Isosorbide mononitrate is available as immediate-release tablets as well as extended-release tablets and capsules. The tablets are designed to be swallowed whole and should not be chewed, crushed, or split unless directed by a healthcare professional.
Warnings and precautions for isosorbide mononitrate
- Hypotension (low blood pressure): Isosorbide mononitrate may cause a sudden drop in blood pressure, resulting in dizziness or fainting. Use caution when rising from a sitting or lying position
- Tolerance: Prolonged use of isosorbide mononitrate may lead to the development of tolerance, which may reduce its effectiveness. Your healthcare provider may need to adjust the dosage or switch to an alternative medication if tolerance occurs
- Some over the counter products have ingredients that could make your heart failure worse. Speak to your healthcare provider before taking any new medication
- It is not known if this medication passes into breast milk. Speak to your doctor before breast-feeding
Dosage of isosorbide mononitrate
The dosage of isosorbide mononitrate may vary depending on the individual patient and the specific condition being treated. It is important to follow the instructions provided by your healthcare provider.
Side effects of isosorbide mononitrate
Common side effects of isosorbide mononitrate may include:
- Headache
- Lightheadedness
- Flushing
- Nausea
Get medical help right away if you have a life threatening allergic reaction. Symptoms include hives, trouble breathing, worsening shortness of breath, sore throat, chest pain, swelling of the face, tongue or throat, skin rash, blisters, and serious skin reactions.
Interactions with other drugs
Isosorbide mononitrate may interact with other medications, including drugs to treat erectile dysfunction or pulmonary hypertension (avanafil, sildenafil, tadalafil, vardenafil), and riociguat. It is important to inform your healthcare provider about all the prescription drugs, over the counter nonprescription medications, salt substitutes, herbal products, supplements, and vitamins you are taking to avoid potential adverse effects and drug interactions.
Similar drugs to isosorbide mononitrate
Other medication for the treatment of angina are isosorbide dinitrate and nitroglycerin.
Sources:
- FDA Prescribing Information for Isosorbide Mononitrate
- NHS – Isosorbide Mononitrate
- WebMD – Isosorbide Mononitrate
- Drugs.com – Isosorbide Mononitrate
Disclaimer
Now Patient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information in this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
About Now Patient
Now Patient’s online services are available in the US and UK. We help you manage your prescriptions, doctor appointments, test results, health risks, and a lot more, all in one place for FREE. If you are in the United States, you could enjoy savings using Now Patient’s mail-order pharmacy or use the Now Patient Rx Advantage Card at over 65,000 pharmacies, with savings of up to 90% on popular FDA-approved brand and generic medications like Ozempic, Mounjaro, clopidogrel and lots more. We do not currently handle commercial insurance, Medicare or Medicaid. UK NHS and private prescriptions are delivered FREE of charge across England & Wales by our UK NHS online pharmacy.

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