In this drug factsheet:DIN (Drug Identification Number)
|00755907 ||NIFEDIPINE 10 MG CAPSULE|
|00725110 ||NIFEDIPINE 5MG CAPSULE|
How does this medication work? What will it do for me?
Nifedipine belongs to the class of medications called calcium channel blockers. It is used to treat high blood pressure and angina (chest pain brought on by exercise or stress). It works to control blood pressure and reduce the number of angina attacks by relaxing blood vessels.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.
How should I use this medication?
For capsules (immediate release form), the recommended doses range from 5 mg to 20 mg 3 or 4 times daily.
For the extended release tablets, the recommended doses range from 20 mg to 90 mg once daily.
For the XL tablets, the recommended doses range from 20 mg to 90 mg once daily.
For the PA tablets, the recommended doses range from 10 mg to 40 mg twice daily.
The usual starting dose for treatment of high blood pressure or angina is 20 mg to 30 mg of a long-acting formula nifedipine (extended release tablets, XL tablets, or PA tablets) once daily. The maximum recommended daily dose is 90 mg.
The long-acting forms of the medication should be swallowed whole and should not be bitten or divided. Dosage should be based on individual tolerance and response, and should be started at a low dose. Higher doses (e.g., 60 mg or 90 mg) are not recommended for initial treatment. Higher doses should be used for treatment once the dose has been stabilized.
Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
This medication is available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms listed here. The forms available for the specific brand you have searched are listed under "What form(s) does this medication come in?"
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
What form(s) does this medication come in?
This medication is available as 5 mg and 10 mg capsules.
Who should NOT take this medication?
Nifedipine should not be taken by anyone who:
- is allergic to nifedipine or to any of the ingredients of the medication
- is allergic to other calcium channel blockers (e.g., amlodipine, felodipine)
- is breast-feeding
- is in the period immediately following a heart attack (applies to the immediate release form of nifedipine)
- is or may become pregnant
- has very low blood pressure