Medically reviewed: April 4, 2018
Uses of Nifedipine Extended-Release Tablets:
- It is used to treat chest pain or pressure.
- It is used to treat high blood pressure.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Nifedipine Extended-Release Tablets?
- If you have an allergy to nifedipine or any other part of this medicine (nifedipine extended-release tablets).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you are taking any of these drugs: Carbamazepine, phenobarbital, phenytoin, rifabutin, rifampin, or St. John's wort.
- If you have had a recent heart attack.
- If you are breast-feeding or plan to breast-feed.
- If you have a rare hereditary problem of galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption. Some products have lactose.
This is not a list of all drugs or health problems that interact with this medicine (nifedipine extended-release tablets).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this medicine (nifedipine extended-release tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Nifedipine Extended-Release Tablets?
- Tell all of your health care providers that you take this medicine (nifedipine extended-release tablets). This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how this medicine (nifedipine extended-release tablets) affects you.
- To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
- It is rare, but worse chest pain and heart attack can happen after this medicine (nifedipine extended-release tablets) is first started or after the dose is raised. The risk may be greater in people who have very bad heart blood vessel disease. Talk with the doctor.
- Have your blood pressure checked often. Talk with your doctor.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- Avoid grapefruit and grapefruit juice.
- If you are taking this medicine (nifedipine extended-release tablets) and have high blood pressure, talk with your doctor before using OTC products that may raise blood pressure. These include cough or cold drugs, diet pills, stimulants, ibuprofen or like products, and some natural products or aids.
- Very bad stomach and bowel problems like blockage and ulcers have happened with a long-acting form of this medicine (nifedipine extended-release tablets). Sometimes, these problems have led to the need to go to the hospital. Talk with the doctor.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking this medicine (nifedipine extended-release tablets) with your other drugs.
- If you are 65 or older, use this medicine (nifedipine extended-release tablets) with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this medicine (nifedipine extended-release tablets) while you are pregnant.
How is this medicine (Nifedipine Extended-Release Tablets) best taken?
Use this medicine (nifedipine extended-release tablets) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Swallow whole. Do not chew, break, or crush.
- To gain the most benefit, do not miss doses.
- Keep taking this medicine (nifedipine extended-release tablets) as you have been told by your doctor or other health care provider, even if you feel well.
- Do not stop taking this medicine (nifedipine extended-release tablets) all of a sudden without calling your doctor. You may have a greater risk of side effects. If you need to stop this medicine (nifedipine extended-release tablets), you will want to slowly stop it as ordered by your doctor.
- Some drugs may need to be taken with food or on an empty stomach. For some drugs it does not matter. Check with your pharmacist about how to take this medicine (nifedipine extended-release tablets).
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Very bad dizziness or passing out.
- Chest pain that is new or worse.
- A heartbeat that does not feel normal.
- Mood changes.
- Shortness of breath, a big weight gain, or swelling in the arms or legs.
- Muscle pain or cramping.
- Very bad belly pain.
- Very hard stools (constipation).
- Black, tarry, or bloody stools.
- Throwing up blood or throw up that looks like coffee grounds.
What are some other side effects of Nifedipine Extended-Release Tablets?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Upset stomach.
- Feeling tired or weak.
- Hard stools (constipation).
- Feeling nervous and excitable.
- For some brands, you may see the tablet shell in your stool. For these brands, this is normal and not a cause for concern. If you have questions, talk with your doctor.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Nifedipine Extended-Release Tablets?
- Store at room temperature.
- Protect from light.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about this medicine (nifedipine extended-release tablets), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about nifedipine
- Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Compare Alternatives
- Support Group
- Pricing & Coupons
- En Español
- 70 Reviews – Add your own review/rating
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