Tykerb (Lapatinib) is used to treat advanced hormone-related breast cancer that has spread with other cancer medications. Lapatinib is a HER2 inhibitor that works by interfering with HER2-related kinases inside the cell, limiting the energy breast cancer cells have to grow and multiply which can slow or stop the growth of breast cancer. This medication is used only if the tumor tests positive for a protein called human epidermal growth factor receptor 2 (HER2). Lapatinib is combined with Femara in postmenopausal women. In others, it is given together with Xeloda. Tykerb is usually taken once daily one hour before or one hour after a meal or as directed by your doctor.
Canadian Pharmacy King currently offers the brand Tykerb from Turkey manufactured by Glaxo operations and Canada by GSK in the strength of 250 mg tablets. There is no generic available for this medication.
Call your doctor right away if you have any severe side effects such as:
• Chest pain;
• Fast or pounding heartbeats;
• New or worsening cough;
• Severe or ongoing diarrhea;
• Shortness of breath;
• Sudden dizziness;
The common side effects of Tykerb may include dry skin, mild rash, mouth sores, nausea, trouble sleeping, upset stomach and vomiting.
You should not take Tykerb if you are allergic to Lapatinib or if you have any other allergies. Before you start taking this medication, talk to your doctor about your medical history and about all the medications you take including OTC and herbal medications. Lapatinib may cause a condition that affects the heart rhythm causing serious symptoms that may need medical attention right away. Inform your doctor if you are pregnant or plan to become pregnant. This medication may harm an unborn baby. Men and women using this medication should use reliable forms of birth control during treatment and for one week after stopping treatment. It is unknown if this medication passes into breast milk. Breast-feeding is not recommended while using this medication. Talk to your doctor before breast-feeding.