Nifedipine CR Oral
In Depth
- Uses and How to Use
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
- Drug Images
Pronounced: (nye-FED-ih-peen)
Nifedipine CR Oral Uses
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems.
This medication is also used for certain types of chest pain (angina). It may help increase your ability to exercise and decrease the frequency of chest pain attacks. It should not be used to treat chest pain when it occurs. Use other medications (e.g., sublingual nitroglycerin) to relieve attacks of chest pain as directed by your doctor. Consult your doctor or pharmacist for more details.
This medication is known as a calcium channel blocker. It works by relaxing and widening blood vessels so blood can flow more easily.
How To Use Nifedipine CR Oral
Take this medication by mouth, with or without food, usually once daily or as directed by your doctor. Swallow the medication whole. Do not crush, chew, or break the medication. Doing so can destroy the long action of the drug and may increase side effects.
Your doctor may gradually increase your dose. Follow your doctor's instructions carefully. Dosage is based on your medical condition and response to treatment.
Avoid eating grapefruit or drinking grapefruit juice while being treated with this medication unless your doctor instructs you otherwise. Grapefruit juice can increase the amount of certain medications in your bloodstream. Consult your doctor or pharmacist for more details.
Use this medication regularly in order to get the most benefit from it. Remember to take it at the same time each day. It is important to continue taking this medication even if you feel well. Most people with high blood pressure do not feel sick.
Do not suddenly stop taking this medication without consulting your doctor. Your condition may become worse when the drug is suddenly stopped. Your dose may need to be gradually decreased.
Tell your doctor if your condition worsens (e.g., increase in your routine blood pressure readings).
