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Tenofovir ( te-NOE-fo-veer) is used, in combination with other medicines, in the treatment of the infection caused by the human immunodeficiency virus (HIV). HIV is the virus that causes acquired immunodeficiency syndrome (AIDS).
Tenofovir will not cure or prevent HIV infection or AIDS; however, it may help keep HIV from reproducing which may slow down the destruction of the immune system. This may help delay the development of problems usually related to AIDS or HIV disease. Tenofovir will not keep you from spreading HIV to other people. People who receive this medicine may continue to have other problems usually related to AIDS or HIV disease.
This medicine is available only with your doctor's prescription, in the following dosage form:
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 tenofovir, the following should be considered:
Allergies- Tell your doctor if you have ever had any unusual or allergic reaction to tenofovir. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.
Pregnancy- Tenofovir has not been studied in pregnant women. However, tenofovir has not been shown to cause birth defects or other problems in animal studies.
Breast-feeding- It is not known whether tenofovir passes into breast milk. However, because of the possibility that this medicine could cause unwanted effects in nursing babies and the risk of passing HIV on to the infant, breast-feeding is usually not recommended.
Children- Studies on this medicine have been done only in adult patients, and there is no specific information comparing use of tenofovir in children with use in other age groups.
Older adults- Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults. Although there is no specific information comparing use of tenofovir in the elderly with use in other age groups, this medicine is not expected to cause different side effects or problems in older people than it does in 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 tenofovir, it is especially important that your health care professional know if you are taking the following:
Other medical problems- The presence of other medical problems may affect the use of tenofovir. 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 by your doctor. Do not take it more often, and do not take it for a longer time than your doctor ordered. Also, do not stop taking this medicine without checking with your doctor first.
This medicine should be taken with a meal so that the highest amount of drug can be absorbed by the body.
This medicine works best when there is a constant amount in the blood. To help keep the amount constant, do not miss any doses.
The dose of tenofovir will be different for different patients. This medication should be taken with food so that the highest amount of drug can be absorbed by the body. Follow your doctor's orders or the directions on the label . The following information includes only the average doses of tenofovir. If your dose is different, do not change it unless your doctor tells you to do so.
If you miss a dose of this medicine, take it as soon as you remember. However, if it is almost time for the 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 very important that your doctor check you at regular visits to make sure this medicine is working properly and to check for unwanted effects.
This medicine may cause serious problems with your liver or cause too much acid in your blood. If untreated, it can lead to severe low blood pressure and even death. Check with your doctor immediately if you notice abdominal discomfort; decreased appetite; diarrhea; fast, shallow breathing; general feeling of discomfort; muscle pain or cramping; nausea; shortness of breath; sleepiness; or unusual tiredness or weakness.
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 immediately 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