Cabozantinib (Cabometyx®)

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About This Drug

Cabozantinib is used to treat cancer. It is given orally (by mouth).

Possible Side Effects

  • Nausea and vomiting (throwing up)
  • Constipation (not able to move bowels)
  • Diarrhea (loose bowel movements)
  • Tiredness
  • Decreased appetite (decreased hunger)
  • Hand-and-foot syndrome. The palms of your hands or soles of your feet may tingle, become numb, painful, swollen, or red.
  • High blood pressure

Note: Each of the side effects above was reported in 25% or greater of patients treated with cabozantinib. Not all possible side effects are included above.

Warnings and Precautions

  • Abnormal bleeding – symptoms may be coughing up blood, throwing up blood (may look like coffee grounds), red or black tarry bowel movements, abnormally heavy menstrual flow, nosebleeds or any other unusual bleeding.
  • Abnormal opening in stomach, intestine or esophagus (fistula). Symptoms of a fistula may be: severe abdominal pain or difficulty swallowing.
  • Blood clots and events such as stroke and heart attack. A blood clot in your leg may cause your leg to swell, appear red and warm, and/or cause pain. A blood clot in your lungs may cause trouble breathing, pain when breathing, and/or chest pain.
  • Slow wound healing
  • Changes in your central nervous system can happen. The central nervous system is made up of your brain and spinal cord. You could feel extreme tiredness, agitation, confusion, hallucinations (see or hear things that are not there), trouble understanding or speaking, loss of control of your bowels or bladder, eyesight changes, numbness or lack of strength to your arms, legs, face, or body, and coma. If you start to have any of these symptoms let your doctor know right away.
  • Severe high blood pressure
  • Severe diarrhea
  • Severe hand-and-foot syndrome
  • Increased protein in your urine
  • Osteonecrosis of the jaw. This is a breakdown of the jaw bone. It is a serious but rare health problem. 

Note: Some of the side effects above are very rare. If you have concerns and/or questions, please discuss them with your medical team.

Important Information

  • Do not substitute the tablets for the capsules.
  • Cabozantinib may cause slow wound healing. It should not be given within 28 days of surgery or any major dental work. If you must have emergency surgery, dental work or have an accident that results in a wound, tell the doctor that you are on cabozantinib.

How to Take Your Medication

  • Swallow the medicine whole with a full glass of water (8 ounces). Do not crush tablets.
  • Take this drug on an empty stomach. Take at least one hour before eating or at least two hours after eating.
  • Missed dose: If you miss a dose, and it is less than 12 hours until your next dose, then skip the missed dose and go back to your normal schedule. If you miss a dose, and it is more than 12 hours until your next dose, take the missed dose. Do not take 2 doses at the same time or extra doses.
  • Handling: Wash your hands after handling your medicine; your caretakers should not handle your medicine with bare hands and should wear latex gloves.
  • This drug may be present in the saliva, tears, sweat, urine, stool, vomit, semen, and vaginal secretions. Talk to your doctor and/or your nurse about the necessary precautions to take during this time.
  • Storage: Store this medicine in the original container at room temperature.
  • Disposal of unused medicine: Do not flush any expired and/or unused medicine down the toilet or drain unless you are specifically instructed to do so on the medication label. Some facilities have take-back programs and/or other options. If you do not have a take-back program in your area, then please discuss with your nurse or your doctor how to dispose of unused medicine. 

Treating Side Effects

  • Drink plenty of fluids (a minimum of eight glasses per day is recommended).
  • If you throw up or have loose bowel movements, you should drink more fluids so that you do not become dehydrated (lack of water in the body from losing too much fluid).
  • Ask your doctor or nurse about medicines that are available to help stop or lessen constipation, diarrhea and/or nausea.
  • If you are not able to move your bowels, check with your doctor or nurse before you use enemas, laxatives, or suppositories.
  • To help with nausea and vomiting, eat small, frequent meals instead of three large meals a day. Choose foods and drinks that are at room temperature. Ask your nurse or doctor about other helpful tips and medicine that is available to help or stop lessen these symptoms.
  • If you get diarrhea, eat low-fiber foods that are high in protein and calories and avoid foods that can irritate your digestive tracts or lead to cramping. Ask your nurse or doctor about medicine that can lessen or stop your diarrhea.
  • To help with decreased appetite, eat small, frequent meals. Eat foods high in calories and protein, such as meat, poultry, fish, dry beans, tofu, eggs, nuts, milk, yogurt, cheese, ice cream, pudding, and nutritional supplements.
  • Consider using sauces and spices to increase taste. Daily exercise, with your doctor’s approval, may increase your appetite.
  • Manage tiredness by pacing your activities for the day. Be sure to include periods of rest between energy-draining activities.
  • Tell your cancer doctor if you have any problems with your teeth or jaw before you start this drug. It is important that your dentist knows that you are on this drug. Give your dentist and your cancer doctor each other’s name and phone number so they may call each other if they have any questions.
  • If you get a rash do not put anything on it unless your doctor or nurse says you may. Keep the area around the rash clean and dry. Ask your doctor for medicine if your rash bothers you. 

Food and Drug Interactions

  • Avoid grapefruit or grapefruit juice while taking this medicine as it may raise the levels of cabozantinib in your body which could make side effects worse.
  • Check with your doctor or pharmacist about all other prescription medicines and over-the-counter medicines and dietary supplements (vitamins, minerals, herbs and others) you are taking before starting this medicine as there are known drug interactions with cabozantinib. Also, check with your doctor or pharmacist before starting any new prescription or over-the-counter medicines, or dietary supplements to make sure that there are no interactions.
  • Avoid the use of St. John’s Wort while taking cabozantinib as this may lower the levels of the drug in your body, which can make it less effective. 

When to Call the Doctor

Call your doctor or nurseif you have any of the following symptoms and/or any new or unusual symptoms:

  •  Fever of 100.4° F (38° C) or higher
  • Chills
  • Tiredness that interferes with your daily activities
  • Headache that does not go away
  • Symptoms of a seizure such as confusion, blacking out, passing out, loss of hearing or vision, blurred vision, unusual smells or tastes (such as burning rubber), trouble talking, tremors or shaking in parts or all of the body, repeated body movements, tense muscles that do not relax, and loss of control of urine and bowels. If you or your family member suspects you are having a seizure, call 911 right away
  • Easy bleeding or bruising
  • Feeling dizzy or lightheaded
  • Blurred vision or other changes in eyesight
  • Confusion or agitation
  • Coughing up blood
  • Wheezing or trouble breathing
  • Chest pain or symptoms of a heart attack. Most heart attacks involve pain in the center of the chest that lasts more than a few minutes. The pain may go away and come back. It can feel like pressure, squeezing, fullness, or pain. Sometimes pain is felt in one or both arms, the back, neck, jaw, or stomach. If any of these symptoms last 2 minutes, call 911.
  • Symptoms of a stroke such as sudden numbness or weakness of your face, arm, or leg, mostly on one side of your body; sudden confusion, trouble speaking or understanding; sudden trouble seeing in one or both eyes; sudden trouble walking, feeling dizzy, loss of balance or coordination; or sudden, bad headache with no known cause. If you have any of these symptoms for 2 minutes, call 911.
  • Lasting loss of appetite or rapid weight loss of five pounds in a week
  • Nausea that stops you from eating or drinking or relieved by prescribed medicine
  • Throwing up more than 3 times a day
  • No bowel movement for 3 days or you feel uncomfortable
  • Diarrhea, 4 times in one day or diarrhea with weakness or lightheadedness
  • Bad abdominal pain, especially in upper right area
  • Blood in your urine, vomit (bright red or coffee-ground) and/or stools (bright red, or black/tarry)
  • Foamy or bubbly-looking urine
  • Heavy menstrual period that lasts longer than normal
  • Painful, red, or swollen areas on your hands or feet
  • Pain between shoulder blades, or in right shoulder
  • Your leg or arm is swollen, red or painful
  • Rash or itching that is not relieved by prescribed medicine
  • Signs of osteonecrosis of the jaw such as pain, swelling or infection of the gums, loose teeth, poor healing of the gums, numbness or the feeling that your jaw is heavy
  • If you think you may be pregnant 

Reproduction Warnings

  • Pregnancy warning: This drug can have harmful effects on the unborn baby. Women of child bearing potential should use effective methods of birth control during your cancer treatment and for at least 4 months after treatment. Let your doctor know right away if you think you may be pregnant.
  • Breastfeeding warning: Women should not breastfeed during treatment and for 4 months after treatment because this drug could enter the breast milk and cause harm to a breastfeeding baby.
  • Fertility warning: In men and women both, this drug may affect your ability to have children in the future. Talk with your doctor or nurse if you plan to have children. Ask for information on sperm or egg banking.

Revised March 2019

This patient information was developed by Via Oncology, LLC © 2018. This information is not intended to be used as a substitute for professional medical advice, diagnosis, or treatment. You should not rely entirely on this information for your health care needs. Ask your own doctor or health care provider any specific medical questions that you have.

CLIENT acknowledges that the Via Pathways and Via Portal are information management tools only, and that Via Oncology, LLC has not represented the Via Pathways or Via Portal as having the ability to diagnose disease, prescribe treatment, or perform any other tasks that constitute the practice of medicine. The clinical information contained in the Via Pathways and Via Portal are intended as a supplement to, and not a substitute for, the knowledge, expertise, skill, and judgment of physicians, pharmacists and other healthcare professionals involved with patient care at CLIENT facilities.