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Author Metcalfe
Nitroglycerin extended-release capsules are used to prevent chest pain (angina) in people with a certain heart condition (coronary artery disease). This medication belongs to a class of drugs known as nitrates. Angina occurs when the heart muscle is not getting enough blood. This drug works by relaxing and widening blood vessels so blood can flow more easily to the heart.This medication will not relieve chest pain once it occurs. It is also not intended to be taken just before physical activities (such as exercise, sexual activity) to prevent chest pain. Other medications may be needed in these situations. Consult your doctor for more details.
Take this medication by mouth as directed by your doctor, usually 3 to 4 times daily. It is important to take the drug at the same times each day. Do not change the dosing times unless directed by your doctor. The dosage is based on your medical condition and response to treatment.
Use this medication regularly to get the most benefit from it. Do not suddenly stop taking this medication without consulting your doctor. Some conditions may become worse when the drug is suddenly stopped. Your dose may need to be gradually decreased.
Although unlikely, when this medication is used for a long time, it may not work as well and may require different dosing. Tell your doctor if this medication stops working well (for example, you have worsening chest pain or it occurs more often). Side Effects Headache, dizziness, lightheadedness, nausea, and flushing may occur as your body adjusts to this medication. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Headache is often a sign that this medication is working. Your doctor may recommend treating headaches with an over-the-counter pain reliever (such as acetaminophen, aspirin). If the headaches continue or become severe, tell your doctor promptly.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345. Precautions Before using this medication, tell your doctor or pharmacist if you are allergic to it; or to similar drugs (such as isosorbide mononitrate); or to nitrites; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: recent head injury, frequent stomach cramping/watery stools/severe diarrhea (GI hypermotility), lack of proper absorption of nutrients (malabsorption), anemia, low blood pressure, dehydration, other heart problems (such as recent heart attack).
This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
It is unknown if this drug passes into breast milk. Consult your doctor before breastfeeding. Interactions Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: drugs used to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), certain drugs to treat migraine headaches (ergot alkaloids such as ergotamine), riociguat, vericiguat.
This medication may interfere with certain lab tests (such as blood cholesterol levels), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug. Does Nitroglycerin interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check Interaction Overdose If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669. Symptoms of overdose may include: slow heartbeat, vision changes, severe nausea/vomiting, sweating, cold/clammy skin, bluish fingers/toes/lips.Notes Notes Do not share this medication with others.
Lifestyle changes such as dietary changes, exercise, and stopping smoking may help this drug work better. Talk to your doctor or pharmacist about lifestyle changes that might benefit you.Missed Dose Missed Dose If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.Storage Storage Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company. Images nitroglycerin ER 9 mg capsule,extended release
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Nitroglycerin is available as two types of products that are used for different reasons. The extended-release capsules are used every day on a specific schedule to prevent angina attacks. The oral spray, sublingual powder, and sublingual tablets work quickly to stop an angina attack that has already started or they can be used to prevent angina if you plan to exercise or expect a stressful event.
When you begin to feel an attack of angina starting (chest pains, tightness or squeezing in the chest), sit down. Then place a sublingual powder or tablet in your mouth or under your tongue. If you use the oral spray, you should spray it on or under the tongue. You may become dizzy, lightheaded, or faint soon after using a tablet or spray, so it is safer to sit rather than stand while the medicine is working. If you become dizzy or faint while sitting, take several deep breaths and bend forward with your head between your knees. Remain calm and you should feel better in a few minutes.
If you are taking the nitroglycerin sublingual powder: Empty the contents of a packet under your tongue. Close your mouth and breathe normally. Allow powder to dissolve without swallowing. Do not rinse or spit for 5 minutes after taking this medicine. Do not take more than 3 packets in 15 minutes. If you still have pain after you take a total of 3 packets, this is an emergency. Call 911. Do not drive yourself to the hospital.
Nitroglycerin sublingual tablets should not be chewed, crushed, or swallowed. They work much faster when absorbed through the lining of the mouth. Place the tablet under the tongue or between the cheek and gum, and let it dissolve. Do not eat, drink, smoke, or use chewing tobacco while a tablet is dissolving.
Nitroglycerin sublingual tablets usually give relief in 1 to 5 minutes. However, if the pain is not relieved, you may use a second tablet 5 minutes after you take the first tablet. If the pain continues for another 5 minutes, a third tablet may be used. If you still have chest pain after a total of 3 tablets, contact your doctor or go to a hospital emergency room right away. Do not drive yourself and call 911, if necessary.
You may administer 1 or 2 sprays of Nitroglycerin oral spray at the onset of chest pain. If the pain continues after 5 minutes, a third spray may be used. You must wait 5 minutes after the first 1 or 2 sprays before using a third spray. If you still have chest pain after a total of 3 sprays, contact your doctor or go to a hospital emergency room right away. Do not drive yourself and call 911 if necessary. Do not use more than 3 sprays in a 15-minute period.
You should take the extended-release capsule first thing in the morning and follow the same schedule each day. This medicine works best if you have a "drug-free" period of time every day when you do not take it. Your doctor will schedule your doses during the day to allow for a drug-free time. Follow the schedule of dosing carefully so the medicine will work properly.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the oral spray at room temperature, away from heat and direct light. Do not freeze. Do not keep this medicine inside a car where it could be exposed to extreme heat or cold. Do not forcefully open the container or throw it into a fire, even if it is empty.
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