Information on Nifedipine Controlled Release Tablets
Chemical Name & Pronunciation
Nifedipine (ni-FED-I-peen)
Description
Nifedipine is used for people with high blood pressure or chest pain. Nifedipine may be used for other conditions as determined by your doctor.
Drug Mechanism
This drug blocks the normal passage of calcium through cell walls, preventing the narrowing of blood vessels. This lowers blood pressure.
How Taken
Nifedipine is taken orally, generally once daily. Food does not affect the drug so it can be taken with or without food. The sustained-release tablets should be swallowed, not chewed, crushed or split. An empty tablet shell may appear in the stool, but this is the design of the tablet and is no cause for concern.
Cautions
Talk right away if you experience, shortness of breath, dizziness, constipation, swelling or nausea.
Do NOT abruptly stop this medicine without talking to your doctor.
Avoid alcohol while taking this medicine.
Limit caffeine use while taking this medicine.
Caution is advised in patients with congestive heart failure or with impaired liver or kidney function.
Possible Side Effects
If you experience other bothersome side effects, contact your health care provider.
Some common side effects reported with this medicine include: nausea, dizziness, headache, swelling
Drug Interactions
The blood pressure lowering effect of beta-blockers is increased by nifedipine. Also, the use of fentanyl (for chronic severe pain) with nifedipine may lead to severe low blood pressure. Patients taking quinidine and nifedipine together may experience hypotension (low blood pressure) and irregular heart rhythm.
Missed Doses
Take your next dose as soon as you remember. If it is time for your next dose, skip the missed dose and go back to your regular schedule. Do not double doses.
Pregnant / Nursing
Talk with your doctor if you plan to become pregnant. Caution should be exercised and the drug used only when clearly needed and potential risks are outweighed by the benefits. The same holds true for nursing mothers. It is known that very small amounts of this medicine are excreted in breast milk, so caution is recommended.
Storage
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed.