Drug: NIFEDIPINE SUSTAINED-ACTION - ORAL (nye-FED-i-peen)

This medication 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. Nifedipine belongs to a class of medications known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily.OTHER This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.This medication may also be used for certain types of chest pain (angina). It may help to increase your ability to exercise and decrease the frequency of angina attacks. This medication must be taken regularly to be effective. It should not be used to treat attacks of chest pain when they occur. Use other medications (e.g., sublingual nitroglycerin) to relieve attacks of chest pain as directed by your doctor. Consult your doctor or pharmacist for details.This medication may also be used to treat certain blood circulation disorders (Raynaud's syndrome).

Source: http://www.medicinenet.com

Headache, dizziness, nausea, flushing, constipation, leg/muscle cramps, or sexual problems may occur. To reduce dizziness and lightheadedness, get up slowly when rising from a sitting or lying position. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: swelling of the ankles/feet, shortness of breath, unusual weakness/tiredness.Tell your doctor immediately if any of these rare but very serious side effects occur: fast/slow/irregular heartbeat, fainting, mental/mood changes, swollen/tender gums, vision changes.Although this medication is effective in preventing chest pain (angina), some people who already have severe heart disease may rarely develop worsening chest pain or a heart attack after starting this medication or increasing the dose. Get medical help right away if you experience: worsening chest pain, symptoms of a heart attack (such as chest/jaw/left arm pain, shortness of breath, unusual sweating).A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Source: http://www.medicinenet.com

See also How to Use section.Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: alpha blockers (e.g., doxazosin), beta blockers (e.g., propranolol, metoprolol), calcium or magnesium sulfate received through a vein, digoxin, fentanyl, melatonin, quinidine, certain drugs that may weaken the immune system (e.g., sirolimus, tacrolimus), drugs affecting liver enzymes that remove nifedipine from your body (e.g., cimetidine, nefazodone, quinupristin/dalfopristin, St. John's wort, azole antifungals such as itraconazole, macrolide antibiotics such as erythromycin, rifamycins such as rifampin, anti-seizure medicines such as carbamazepine/phenytoin).Check the labels on all your medicines (e.g., cough-and-cold products, diet aids, nonsteroidal anti-inflammatory drugs-NSAIDs for pain/fever reduction) because they may contain ingredients that could increase your blood pressure or heart rate (e.g., pseudoephedrine, phenylephrine, chlorpheniramine, diphenhydramine, clemastine, ibuprofen, naproxen). Ask your pharmacist about using those products safely.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

Source: http://www.medicinenet.com

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