Brand Name

Imdur {Merck}

Generic Name

isosorbide mononitrate, pronounced EYE soe SOR bide MON oh NYE trate

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Drug Guide

The information contained in the following drug guide is intended as an educational resource only. This guide is not exhaustive and does not contain all available information about this drug.This guide is not intended as medical advice for individual conditions or treatment.

The information provided in this guide does not replace the need for the advice and services of medical professionals or the need for medical examination. Always talk to your physician or pharmacist before taking any prescription medication or over the counter drugs (including any supplements) or before making any changes to your treatment. Only your doctor, nurse or pharmacist can provide you with safe and effective advice regarding your drug treatment.

The use of the information in this guide is at your sole risk. This information is provided "AS IS" with no warranties to accuracy or timeliness.

**All trademarks and registered trademarks are the property of their respective owners.

What is Imdur?

Imdur is a medication that is used to treat angina, or chest pain. You should not use Imdur for an acute or emergency attack of angina. Imdur is in the nitrate group of medications, and it works by dilating, or widening your blood vessels, making it easier for your blood to flow.

Imdur may be used for purposes not indicated in this medication guide.

Key Facts About Imdur

You should not use Imdur as a treatment for an acute angina attack. Your doctor can prescribe a medication to help treat an urgent attack.

You should not use Imdur if you are taking sildenafil (Viagra, Revatio), as serious and life-threatening side effects can occur.

Imdur is in FDA pregnancy category C. We do not know if Imdur can harm an unborn baby. Tell your doctor if you are pregnant or if you plan to become pregnant before taking Imdur. Imdur is not known to pass into breast milk and harm a nursing baby, but you should tell your doctor before breast-feeding while you are taking this medication.

While you are taking Imdur be careful when doing anything that requires you to be alert, such as driving. Imdur may impair your thinking and reaction time.

Dizziness may occur while you are taking Imdur. Take care to move slowly when getting up from a sitting or lying down position.

You may experience headaches while taking Imdur, which can occasionally be severe. Talk to your doctor before taking any pain medication for these headaches.

You should not drink while taking Imdur, as it can exacerbate the side effects of this medication.

Before You Take Imdur

You should not take Imdur if you are allergic to isosorbide mononitrate, isosorbide dinitrate, (Isordil, Dilatrate, Isochron), or nitroglycerin.

You should not take Imdur if you have early signs of a heart attack, like chest pain or a heavy feeling, pain spreading to your arm or shoulder, nausea, sweating and a general ill feeling.

If you have low blood pressure, congestive heart failure or kidney disease you may not be a candidate to take Imdur. Talk to your doctor if you have any of these conditions

You should not stop taking Imdur suddenly, as it may cause a severe angina attack. Talk to your doctor if you wish to stop taking this medication.

Imdur Drug Interactions

You should inform your doctor if you are taking any of the following:

• beta blockers like atenolol (Tenormin, Tenoretic), carvedilol (Coreg), labetalol (Normodyne, Trandate), metoprolol (Dutoprol, Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran) and sotalol (Betapace)
• dihydroergotamine (D.H.E. 45, Migranal) or ergotamine (Ergomar, Cafergot)
• erectile dysfunction medications like sildenafil (Viagra), tadalafil (Cialis) or vardenafil (Levitra)
• heart or blood pressure medications like amlodipine
• Norvasc, Caduet, Exforge, Lotrel, Tekamlo, Tribenzor, Twynsta), diltiazem (Cartia, Cardizem), nifedipine (Nifedical, Procardia) and verapamil (Calan, Covera, Isoptin, Verelan)

Other drugs you take that are not listed may interact with Imdur. You should tell your doctor about all of the medications you use. This includes prescription drugs, vitamins, supplements and herbal products, and over the counter medications. You should not begin taking a new medication without telling your doctor first.

Directions for Taking Imdur

You should follow the instructions on your prescription label and not take Imdur for longer than recommended by your doctor, or in larger or smaller doses.

Imdur can be taken with or without food.

Imdur should not be broken, chewed or crushed, as breaking this medication may cause too much of it to be released at one time.

You should try and stay seated shortly after taking Imdur, as this medication may cause dizziness or fainting.

You should take Imdur with at least 4 oz. of water or another liquid.

If you need surgery be sure to tell the surgeon and staff that you are taking Imdur.

Do not change brands of this medication without talking to your doctor first.

Imdur should be stored at room temperature, and away from both moisture and heat.

If you miss a dose of Imdur you should attempt to take the missed dose as soon as you remember, but only if your next dose is soon. Do not take the missed dose in addition to your regular dose.

Imdur Side Effects

If you experience any of the following adverse effects you should stop taking Imdur and seek emergency medical help immediately:

• allergic reaction such as breathing difficulties, hives and swelling of your face, lips, throat or tongue
• angina pain that worsens
• feeling faint like you might pass out
• shortness of breath, trouble breathing, exhaustion and blue skin
• slow, fast or pounding heartbeats

Less serious Imdur side effects may include:

• constipation
• diarrhea
• dizziness (mild)
• dry mouth
• headache
• hot flashes
• joint or muscle stiffness or pain
• nausea
• skin warmth, redness and tingling underneath
• vomiting

It should be noted that this is not a complete list of possible side effects of Imdur. You should contact your physician for a complete list and medical advice regarding these effects.

Imdur Description and Dosing

Imdur is available as 30 mg, 60 mg or 120 mg tablets. The 30 mg dosage is white, capsule-shaped tablets scored on one side and engraved “Imdur” on the unscored side. The 60 mg dosage is white, capsule-shaped tablets scored on one side with “60-60” and engraved “Imdur” on the unscored side. The 120 mg dosage is white, capsule-shaped tablets engraved “Imdur” on one side and “120” on the other side.

The typical adult dose of Imdur is 30-60 mg orally, taken daily. However, your doctor may occasionally change your dose to make sure you get the best results. You should take Imdur exactly as your doctor prescribes you to. Do not attempt to alter or change your dose without your physician’s consent.

If you believe you may have overdosed with Imdur seek emergency medical help immediately.

Ingredients in Imdur

Imdur contains the active ingredient isosorbide mononitrate, in an extended-release formulation. Inactive ingredients include colloidal silicon dioxide, hydrogenated castor oil, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose and talc.

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The information contained in this drug guide is intended as an educational resource only. This guide is not exhaustive and does not contain all available information about this drug.This guide is not intended as medical advice for individual conditions or treatment.

The information provided in this guide does not replace the need for the advice and services of medical professionals or the need for medical examination. Always talk to your physician or pharmacist before taking any prescription medication or over the counter drugs (including any supplements) or before making any changes to your treatment. Only your doctor, nurse or pharmacist can provide you with safe and effective advice regarding your drug treatment.

The use of the information in this guide is at your sole risk. This information is provided "AS IS" with no warranties to accuracy or timeliness.

**All trademarks and registered trademarks are the property of their respective owners.