Tykerb 250mg Tablet (Lapatinib) – Uses, Interactions and Side Effects

Tykerb 250mg

What is Tykerb?

Tykerb (lapatinib) is a cancer medicine that interferes with the growth and spread of cancer cells in the body.

tykerb 250 mg is used to treat a certain type of hormone-related breast cancer that has progressed or spread after treatment with other cancer medicines.In postmenopausal women, Tykerb is given in combination with a hormonal medicine called Femara (letrozole). In others, Tykerb is given together with a cancer medicine called Xeloda (capecitabine).


Lapatinib is used together with another medication (capecitabine) to treat a certain type of breast cancer (HER2-positive) that has not responded to the standard treatment. Lapatinib may also be used together with another medication (letrozole) to treat HER2-positive breast cancer in women after menopause. It works by slowing or stopping the growth of cancer cells.

Side Effects

SomeĀ tykerb 250 mg side effects are given below.

  • ever
  • hair loss or thinning
  • headache
  • indigestion
  • joint pain
  • loss of appetite
  • mouth sores or sore mouth
  • nail tenderness, infection, or swelling
  • nausea
  • nosebleeds
  • pain in the arms or legs
  • skin rash


Before taking lapatinib, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This tykerb 250 mg tab may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart disease (e.g., irregular heartbeat), liver disease.

Lapatinib may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.


Diarrhea: This tykerb 250 mg tablet can cause diarrhea that can lead to dehydration. Dehydration can cause many symptoms, including decreased urine production, dry and sticky mouth, sleepiness, dizziness, headache, thirst and confusion. In some cases, dehydration can become a medical emergency. If you have diarrhea or any of these symptoms while taking this medication, let your doctor know.

Heart effects: This medication can affect heart function. Your doctor will monitor you for these effects while you are taking this medication. If heart problems occur, your doctor may stop this medication and restart it if your heart function improves.

Tykerb 250mg Tablet (Lapatinib) - Uses, Interactions and Side Effects