Isosorbide Mononitrate Er Coupons & Prices

Looking for an isosorbide mononitrate ER coupon? This extended-release nitrate is a generic medication, but the cash price for the same tablet still varies a surprising amount from one pharmacy to the next, so it pays to compare before you fill. Rx.com checks pricing across 60,000+ U.S. pharmacies so you can enter your ZIP above and see today's price near you.

What is isosorbide mononitrate ER and how does it work?

Isosorbide mononitrate extended-release is a nitrate vasodilator taken on a regular, ongoing schedule to help prevent angina (chest pain) caused by coronary artery disease. It works by relaxing and widening blood vessels, which reduces the heart's workload and helps prevent the chest pain that comes with reduced blood flow to the heart muscle.

It is important to understand what this medicine is not for: it is not used to stop an angina attack that is already happening, because it does not act fast enough for that. Sublingual (under-the-tongue) nitroglycerin is the medication used to treat an acute attack. The brand name Imdur has been discontinued in the U.S., but the extended-release generic tablet is widely available. Immediate-release isosorbide mononitrate was previously sold under the brand names Monoket and Ismo, both since discontinued in the U.S., and is a different product from the ER tablet this page covers.

Isosorbide mononitrate ER cost and coupon savings

Isosorbide mononitrate ER is available as a generic, so there is no brand-name version currently on the market to compare it against. That does not mean every pharmacy charges the same amount, however. Cash prices for generic medications can differ significantly between pharmacies in the same city, so comparing before you fill your prescription is worth the extra minute.

Enter your ZIP code above to see today's price at pharmacies near you, along with any available coupon. Prices can also change over time, so it is worth checking again at refill time rather than assuming last month's price still applies.

How isosorbide mononitrate ER compares to other options

Isosorbide mononitrate ER is one of several long-acting nitrates used for ongoing angina prevention. Isosorbide dinitrate is a related nitrate that some patients take instead, typically on a more frequent dosing schedule. Nitroglycerin is a different form of nitrate used specifically to treat an acute angina attack as it starts, rather than to prevent one.

Because angina often occurs alongside other cardiovascular conditions, some patients are also prescribed a blood pressure medication such as amlodipine or a beta blocker such as metoprolol succinate ER. These work through different mechanisms and are commonly used together with a nitrate as part of a broader treatment plan set by your provider.

Safety information

Isosorbide mononitrate ER must never be combined with PDE5 inhibitor medications such as sildenafil, tadalafil, or vardenafil, or with the medication riociguat. Taking any of these together can cause a severe, life-threatening drop in blood pressure. Tell every provider and pharmacist about all medications you take, and never start a PDE5 inhibitor while on this nitrate without talking to your doctor first.

This medicine should also be avoided by people with a known hypersensitivity to nitrates. Common side effects include headache (which can be significant and may improve with continued use or a dose adjustment), dizziness or lightheadedness from low blood pressure (use extra caution with alcohol or when standing up quickly), and flushing. The extended-release tablet must be swallowed whole and should not be crushed, chewed, or split. This is general information, not medical advice — talk with your doctor or pharmacist about what applies to you.