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Carvedilol (KAR-ve-dil-ole) belongs to a group of medicines called beta-adrenergic blocking agents, beta-blocking agents, or, more commonly, beta-blockers. Beta-blockers work by affecting the response to some nerve impulses in certain parts of the body. As a result, they decrease the heart's need for blood and oxygen by reducing its workload. They also help the heart to beat more regularly.
Carvedilol is used to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys, resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled.
Carvedilol also is used to prevent further worsening of congestive heart failure. Carvedilol may also be used for other conditions as determined by your doctor.
This medicine is available only with your doctor's prescription, in the following dosage form(s):
Before Using This Medicine
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For carvedilol, the following should be considered:
Allergies- Tell your doctor if you have ever had any unusual or allergic reaction to carvedilol. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.
Pregnancy- Carvedilol has not been studied in pregnant women. However, studies in animals have shown that large doses of carvedilol can cause decreased body weight and skeletal problems in rat fetuses. Before taking this medicine, make sure your doctor knows if you are pregnant or may become pregnant.
Breast-feeding- It is not known if carvedilol passes into breast milk; however, it passes into the milk of lactating rats. Because nursing infants may have a serious reaction to carvedilol, breast-feeding is not recommended in women who are taking this medicine.
Children- Studies on this medicine have been done only in adult patients, and there is no specific information comparing use of carvedilol in children with use in other age groups.
Older adults- Although this medicine has not been shown to cause different side effects or problems in older people than it does in younger adults, blood levels of carvedilol may be increased in the elderly. Elderly patients also may experience dizziness more frequently than will younger adults.
Other medicines- Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking carvedilol, it is especially important that your health care professional know if you are taking any of the following:
Other medical problems- The presence of other medical problems may affect the use of carvedilol. Make sure you tell your doctor if you have any other medical problems, especially:
Proper Use of This Medicine
Take this medicine exactly as directed. This medicine works best if you take it at the same time each day; however, do not take more of this medicine and do not take it more often than your doctor ordered. Do not miss any doses.
Take this medicine with food.
Do not interrupt or stop taking this medicine without first checking with your doctor. Your doctor may want you to reduce gradually the amount you are taking before stopping completely. Some conditions may become worse when the medicine is stopped suddenly, which can be dangerous.
The dose of carvedilol will be different for different patients. Follow your doctor's orders or the directions on the label . The following information includes only the average doses of carvedilol. If your dose is different, do not change it unless your doctor tells you to do so.
The number of tablets that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are taking carvedilol .
If you miss a dose of this medicine, take it as soon as possible. However, it it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
To store this medicine:
Precautions While Using This Medicine
It is important that your doctor check your progress at regular visits. This is to make sure the medicine is working for you and to allow the dosage to be changed if needed.
Do not take other medicines unless they have been discussed with your doctor.
This medicine may cause dizziness, lightheadedness, or fainting. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you experience these effects.
Dizziness, lightheadedness, or fainting can also occur when standing quickly. Sitting or lying down may help alleviate these effects.
Check with your doctor if you become dizzy or if you faint. Your dosage may need to be adjusted.
Before having any kind of surgery (including dental surgery) or emergency treatment, tell the medical doctor or dentist in charge that you are taking this medicine.
For diabetic patients :
For congestive heart failure patients :
For patients who wear contact lenses :
Side Effects of This Medicine
Side Effects of This Medicine
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
Last updated: Tue, 06 Jan 2009 00:20:03 GMT