When you take nitroglycerin with certain drugs, nitroglycerin may not work as well to treat your condition. This is because the amount of nitroglycerin in your body may be decreased. However, because drugs interact differently in each person, we cannot guarantee that this information includes all possible interactions.
Always speak with your healthcare professional about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking. Drinking alcohol can increase your risk of very low blood pressure from this drug.
If you drink alcohol, talk to your doctor. If you have an allergic reaction, call your doctor or local poison control center right away. If your symptoms are severe, call or local emergency services or go to the nearest emergency room.
Taking it again could be fatal cause death. A heart attack may cause severe, crushing pain that comes on suddenly. If you have signs of a heart attack, call right away. If you use this drug in this situation, it may lower your heart rate and blood pressure. For pregnant women: Studies of use of this drug in pregnant animals have not shown risk to the fetus.
Therefore, this drug should only be used if the potential benefit justifies potential risk. Call your doctor right away if you become pregnant while taking this drug. For women who are breastfeeding: Nitroglycerin may pass into breast milk and cause side effects in a child who is breastfed. Talk to your doctor if you breastfeed your child. You may need to decide whether to stop breastfeeding or stop taking this medication. For children: This medication has not been studied in children. It should not be used in people younger than 18 years.
This dosage information is for nitroglycerin sublingual tablet. All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on:. This medication has not been studied in children.
However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. Always speak with your doctor or pharmacist about dosages that are right for you.
Nitroglycerin sublingual tablet is used for short-term treatment. Take it only when you have chest pain. If you take too much: You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include:.
If your symptoms are severe, call or go to the nearest emergency room right away. What to do if you miss a dose: This drug is not meant to be taken on a schedule. Keep these considerations in mind if your doctor prescribes nitroglycerin sublingual tablets for you.
A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled. Your doctor will write the number of refills authorized on your prescription. To take this drug, place it under your tongue or on the inside of your cheek. Instead, let it dissolve in your mouth. Your doctor may have you check your blood pressure and heart rate at home. You may need to buy your own blood pressure monitor to do this.
You should keep a log of the date, time of day, and blood pressure readings. Bring this journal with you to your checkups. Your doctor will prescribe the right amount for you. Do not use another person's nitroglycerin.
When do I use quick-acting nitroglycerin? In general, quick-acting nitroglycerin is used: To relieve sudden angina. Before stressful activities that can cause angina, such as walking uphill or having sexual intercourse. How do I use quick-acting nitroglycerin? Sit or lie down to take your nitroglycerin. If you are driving, pull over and park the car. Taking nitroglycerin can lower your blood pressure, which could cause you to pass out if you are standing up. For sudden episodes of angina, use nitroglycerin in a tablet or liquid spray form.
Place the under-the-tongue sublingual tablet under your tongue. Leave it there until it dissolves. If you accidentally swallow the tablet, take another. The medicine won't work if it is swallowed. Place the between-cheek-and-gum buccal tablet between your cheek and gum. Use the spray under your tongue or on top of your tongue.
Push the spray canister button once. Close your mouth right away. Take one tablet or spray dose. If after 5 minutes your angina symptoms are not better or get worse, call or other emergency services immediately. After you call , continue to stay on the phone with the emergency operator. He or she will give you further instructions. Regardless of what happens, you should let your doctor know that you had an episode of angina. If this is unusual for you, if your angina episodes are occurring more frequently or lasting longer, or if you need more medicine to control them, tell your doctor.
Are there side effects or interactions with other drugs that I should be aware of? How should I store nitroglycerin? Can nitroglycerin get old and lose potency? Doctors usually tell people to use the ointment first thing in the morning and reapply it 6 hours later. The rectal ointment for anal fissures contains 0. A person inserts the ointment into their anus every 12 hours for up to 4 weeks. If symptoms persist, a person may take the medication for another 4 weeks, totaling 8 weeks.
To apply the rectal ointment, a person covers their finger with plastic wrap and puts 1 inch of ointment along the finger. They then insert the finger into the anal canal up to the first finger joint.
The person then smears the ointment around the area. When people use nitroglycerin for relieving angina, they should be in a relaxed, seated position. If they stand up too quickly after administering the dose, their blood pressure may drop even lower and put them at risk of fainting. The most common side effect of long-acting nitroglycerin is a headache, but this side effect decreases with medication use.
Although people only apply rectal ointment to the anus, they may still experience headaches and dizziness. Some people may have allergies to nitroglycerin, so doctors do not recommend that people use it if they have a history of allergic reactions to this medication.
Doctors do not prescribe nitroglycerin to anyone with a history of severe anemia , heart attack occurring on the right side of the heart, or increased pressure in the brain.
Nitroglycerin contraindications include allergic reactions, though these reactions are rare. Other contraindications include:.
Nitroglycerin may interact with certain other medications, such as PDE-5 inhibitors. PDE-5 inhibitors are drugs that doctors give to treat erectile dysfunction. As with nitroglycerin, these drugs also cause increased blood flow and can lower blood pressure. Doctors do not recommend that people use nitroglycerin with PDE-5 inhibitors, as these medications can cause fainting if someone is taking them together.
People should avoid using nitroglycerin if they have taken Viagra or Levitra within the past 24 hours or Cialis within the past 48 hours. The nitroglycerin dosage may be different for different people. For example, the dosage may depend on the form of the drug a person is using. It can also change based on:. Generic nitroglycerin comes in the form of a sublingual tablet. The strengths of these tablets are 0.
Brand-name nitroglycerin, Nitrostat, comes in the form of a sublingual tablet. The strengths of this tablet are 0. An overdose of nitroglycerin may occur when a person uses PDE-5 inhibitors with nitroglycerin or uses too much nitroglycerin during an angina attack. Currently, no drug can reverse a nitroglycerin overdose.
That said, doctors can provide care to people experiencing an overdose by giving them intravenous fluids and elevating their legs. Using nitroglycerin in the appropriate way can delay the serious complications of angina, which include heart attack, stroke , and even death. People may experience side effects with nitroglycerin, so they should remain seated while the drug takes effect. Nitroglycerin can interact with erectile dysfunction medications.
People with angina should report the use of Viagra, Cialis, and Levitra to a doctor because using both drugs together may be dangerous. People can also treat anal fissures using nitroglycerin rectal ointment. Side effects and interactions can also occur with the topical use of nitroglycerin. Angina is pain, squeezing, or pressure in the chest. It signals that too little oxygen is reaching the heart.
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