When treating breast cancer, most people take a Tykerb dosage of 1250 mg a day. It is taken for a 21-day cycle, and Xeloda (which is taken in combination with Tykerb) is taken on days 1 through 14 of the cycle. A lower Tykerb dosage is recommended for people with severe liver disease or who are taking drugs that increase the level of Tykerb in the blood.
Tykerb Dosage: An Introduction
The dose of
Tykerb® (
lapatinib) that your healthcare provider recommends will vary, depending on a number of factors, including:
- Other medications you may be taking
- Other medical conditions you may have.
As is always the case, do not adjust your Tykerb dose unless your healthcare provider specifically instructs you to do so.
Tykerb Dosage for Breast Cancer
The usual recommended dose of Tykerb for
breast cancer treatment is 1250 mg (five tablets), taken once daily at least one hour before or one hour after a meal. Tykerb is always used in combination with another cancer medication,
Xeloda® (
capecitabine). Tykerb is taken every day for a 21-day cycle, and Xeloda is taken only on days 1 to 14 of that cycle. After 21 days, the cycle is started over with no days in between. Essentially, Tykerb is taken every single day, but Xeloda is taken for two-week periods with one week in between.
Lower Tykerb dosages may be recommended in the following circumstances:
- If the medication causes a decrease in heart function (your healthcare provider will check for this problem regularly)
- If you have severe liver disease, such as cirrhosis or liver failure
- If you are taking medications that increase the level of Tykerb in your blood (see Tykerb Drug Interactions).
Tykerb (along with Xeloda) is usually taken until the cancer becomes worse or until dangerous or bothersome
Tykerb side effects occur.
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