What are the possible side effects of LENVIMA® (lenvatinib)?
LENVIMA may cause serious side effects, including
- high blood pressure (hypertension): High blood pressure is a common side effect of LENVIMA and can be serious. Your blood pressure should be well controlled before you start taking LENVIMA. Your healthcare provider should check your blood pressure regularly during treatment with LENVIMA. If you develop blood pressure problems, your healthcare provider may prescribe medicine to treat your high blood pressure.
- heart problems: LENVIMA can cause serious heart problems that may lead to death. Call your healthcare provider right away if you get symptoms of heart problems, such as shortness of breath or swelling of your ankles.
problem with blood clots in your blood vessels (arteries): Get emergency medical help right away if you get any of the following symptoms:
- severe chest pain or pressure
- pain in your arms, back, neck or jaw
- shortness of breath
- numbness or weakness on one side of your body
- trouble talking
- sudden severe headache
- sudden vision changes
liver problems: LENVIMA may cause liver problems that may lead to liver failure and death. Your healthcare provider will check your liver function before and during treatment with LENVIMA. Tell your healthcare provider right away if you have any of the following symptoms:
- your skin or the white part of your eyes turns yellow (jaundice)
- dark “tea colored” urine
- light-colored bowel movements (stools)
- feeling drowsy, confused or loss of consciousness
- kidney problems: Kidney failure, which can lead to death, has happened with LENVIMA treatment. Your healthcare provider should do regular blood tests to check your kidneys.
- increased protein in your urine (proteinuria): Proteinuria is a common side effect of LENVIMA and can be serious. Your healthcare provider should check your urine for protein before and during your treatment with LENVIMA.
- diarrhea: Diarrhea is a common side effect of LENVIMA and can be serious. If you get diarrhea, ask your healthcare provider about what medicines you can take to treat your diarrhea. It is important to drink more water when you get diarrhea. Tell your healthcare provider or go to the emergency room, if you are unable to drink enough liquids and your diarrhea is not able to be controlled.
- an opening in the wall of your stomach or intestines (perforation) or an abnormal connection between two or more body parts (fistula): Get emergency medical help right away if you have severe stomach (abdomen) pain.
- changes in the electrical activity of your heart called QT prolongation: QT prolongation can cause irregular heartbeats that can be life threatening. Your healthcare provider will do blood tests before and during your treatment with LENVIMA to check the levels of potassium, magnesium, and calcium in your blood, and may check the electrical activity of your heart with an ECG.
- low levels of blood calcium (hypocalcemia): Your healthcare provider will check your blood calcium levels during treatment with LENVIMA and may tell you to take a calcium supplement if your calcium levels are low.
- a condition called Reversible Posterior Leukoencephalopathy Syndrome (RPLS): Call your healthcare provider right away if you get severe headache, seizures, weakness, confusion, or blindness or change in vision.
bleeding: LENVIMA may cause serious bleeding problems that may lead to death. Tell your healthcare provider if you have any signs or symptoms of bleeding during treatment with LENVIMA, including:
- severe and persistent nose bleeds
- vomiting blood
- red or black (looks like tar) stools
- blood in your urine
- coughing up blood or blood clots
- heavy or new onset vaginal bleeding
- change in thyroid hormone levels: Your healthcare provider should check your thyroid hormone levels before starting and every month during treatment with LENVIMA.
wound healing problems: Wound healing problems have happened in some people who take LENVIMA. Tell your healthcare provider if you plan to have any surgery before or during treatment with LENVIMA.
- You should stop taking LENVIMA at least 1 week before planned surgery.
- Your healthcare provider should tell you when you may start taking LENVIMA again after surgery.
The most common side effects of LENVIMA in people treated for kidney cancer include:
- stomach (abdomen) pain
- trouble breathing
- weight loss
LENVIMA may cause fertility problems in males and females. Talk to your health care provider if this is a concern for you.
Tell your health care provider if you have any side effect that bothers you or that does not go away. These are not all the possible side effects of LENVIMA. For more information, ask your health care provider or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.