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cetuximab

( se-TUX-i-mab )

Other Name(s): Erbitux®

Appearance: Clear, colorless solution

cetuximab patient.pdf

ctuximab pour le patient.pdf

Medication Information Sheet

cetuximab (se-TUX-i-mab)

This document provides general information about your medication. It does not replace the advice of your health care professional. Always discuss your therapy with your health care professional and refer to the package insert for more details.

Other Name: Erbitux®

Appearance:

Clear, colorless solution

What is this medication for?

For treating certain types of colorectal or head and neck cancer

What should I do before I have this medication?

Tell your health care team if you have or had significant medical condition(s), especially if you have / had:

lung, heart problems (including irregular heartbeat or heart failure),
eye problems or use contact lenses, or
any allergies.

Remember to:

Tell your health care team about all of the other medications you are taking.
Keep taking other medications that have been prescribed for you, unless you have been told not to by your health care team.

You will have a blood test to check for hepatitis B before starting treatment. See the Hepatitis B and Cancer Medications pamphlet for more information.

How will this medication affect sex, pregnancy and breastfeeding?

Talk to your health care team about:

How this medication may affect your sexual health.
How this medication may affect your ability to have a baby, if this applies to you.

This medication may harm an unborn baby. Tell your health care team if you or your partner are pregnant, become pregnant during treatment, or are breastfeeding.

If there is any chance of pregnancy happening, you and your partner together must use 2 effective forms of birth control at the same time until at least 6 months after your last dose. Talk to your health care team about which birth control options are best for you.
Do not breastfeed while on this medication until at least 60 days after your last dose.

How is this medication given?

This drug is given through an IV (injected into a vein). Talk to your health care team about your treatment schedule.
You may be given this treatment along with other medications to prevent allergic reaction or skin rash.
If you missed your treatment appointment, talk to your health care team to find out what to do.

To Prevent Allergic Reaction

You will be given medications before your treatment to help prevent allergic reactions before they start.

There are different types of medications to stop allergic reactions. They are called:
- antihistamines (such as diphenhydramine or Benadryl®)
- analgesics/antipyretics (such as acetaminophen or Tylenol®)
- corticosteroids (such as prednisone)

What else do I need to know while on this medication?

Will this medication interact with other medications or natural health products?

Although this medication is unlikely to interact with other medications, vitamins, foods and natural health products, tell your health care team about all of your:
- prescription and over-the-counter (non-prescription) medications and all other drugs, such as cannabis/marijuana (medical or recreational)
- natural health products such as vitamins, herbal teas, homeopathic medicines, and other supplements
Check with your health care team before starting or stopping any of them.

What should I do if I feel unwell, have pain, a headache or a fever?

Always check your temperature to see if you have a fever before taking any medications for fever or pain (such as acetaminophen (Tylenol®) or ibuprofen (Advil®)).
- Fever can be a sign of infection that may need treatment right away.
- If you take these medications before you check for fever, they may lower your temperature and you may not know you have an infection.

How to check for fever:

Keep a digital (electronic) thermometer at home and take your temperature if you feel hot or unwell (for example, chills, headache, mild pain).

You have a fever if your temperature taken in your mouth (oral temperature) is:
- 38.3°C (100.9°F) or higher at any time
  
  OR
- 38.0°C (100.4°F) or higher for at least one hour.

If you do have a fever:

Try to contact your health care team. If you are not able to talk to them for advice, you MUST get emergency medical help right away.
Ask your health care team for the Fever pamphlet for more information.

If you do not have a fever but have mild symptoms such as headache or mild pain:

Ask your health care team about the right medication for you. Acetaminophen (Tylenol®) is a safe choice for most people.
Talk to your health care team before you start taking Ibuprofen (Advil®, Motrin®), naproxen (Aleve®) or ASA (Aspirin®), as they may increase your chance of bleeding or interact with your cancer treatment.
Talk to your health care team if you already take low dose aspirin for a medical condition (such as a heart problem). It may still be safe to take.

What to DO while on this medication:

DO check with your health care team before getting any vaccinations, surgery, dental work or other medical procedures.
DO protect your skin from the sun. Wear a long sleeved shirt, long pants and a hat. Apply sunscreen with UVA and UVB protection and an SPF of at least 15. Your skin may be more sensitive to the sun and you could develop a bad sunburn or rash more easily.

What NOT to DO while on this medication:

DO NOT smoke or drink alcohol while on treatment without talking to your health care team first. Smoking and drinking can make side effects worse and make your treatment not work as well.

What are the side effects of this medication?

The following table lists side effects that you may have when getting cetuximab. The table is set up to list the most common side effects first and the least common last. It is unlikely that you will have all of the side effects listed and you may have some that are not listed.

Read over the side effect table so that you know what to look for and when to get help. Refer to this table if you experience any side effects while on cetuximab.

Very Common Side Effects (50 or more out of 100 people)
Side effects and what to do	When to contact health care team
Rash; dry, itchy skin (May be severe) What to look for? You may have cracked, rough, flaking or peeling areas of the skin. Your skin may look red and feel warm, like a sunburn. Your skin may itch, burn, sting or feel very tender when touched. What to do? To prevent and treat dry skin: Use fragrance-free skin moisturizer. Protect your skin from the sun and the cold. Use sunscreen with UVA and UVB protection and a SPF of at least 15. Avoid perfumed products and lotions that contain alcohol. Drink 6 to 8 cups of non-alcoholic, non-caffeinated liquids each day, unless your health care team has told you to drink more or less. Rash may be severe in some rare cases and cause your skin to blister or peel. If this happens, get emergency medical help right away.	Talk to your health care team if it does not improve or if it is severe.
Fatigue What to look for? Feeling of tiredness or low energy that lasts a long time and does not go away with rest or sleep. What to do? Be active. Aim to get 30 minutes of moderate exercise (you are able to talk comfortably while exercising) on most days. Check with your health care team before starting any new exercise. Pace yourself, do not rush. Put off less important activities. Rest when you need to. Ask family or friends to help you with things like housework, shopping, and child or pet care. Eat well and drink at least 6 to 8 glasses of water or other liquids every day (unless your health care team has told you to drink more or less). Avoid driving or using machinery if you are feeling tired. Ask your health care team for the Fatigue pamphlet for more information.	Talk to your health care team if it does not improve or if it is severe.
Low appetite What to look for? Loss of interest in food or not feeling hungry. Weight loss. What to do? Try to eat your favourite foods. Eat small meals throughout the day. You may need to take meal supplements to help keep your weight up. Talk to your health care team if you have no appetite. Ask your health care team for the Loss of Appetite pamphlet for more information.	Talk to your health care team if it does not improve or if it is severe.
Nausea and vomiting (Generally mild) What to look for? Nausea is feeling like you need to throw up. You may also feel light-headed. You may feel nausea within hours to days after your treatment. What to do? To help prevent nausea: It is easier to prevent nausea than to treat it once it happens. If you were given anti-nausea medication(s), take them as prescribed, even if you do not feel like throwing up. Drink clear liquids and have small meals. Get fresh air and rest. Do not eat spicy, fried foods or foods with a strong smell. Limit caffeine (like coffee, tea) and avoid alcohol. If you have nausea or vomiting: Take your rescue (as-needed) anti-nausea medication(s) as prescribed. Ask your health care team for the Nausea & Vomiting pamphlet for more information. Talk to your health care team if: nausea lasts more than 48 hours vomiting lasts more than 24 hours or if it is severe	Talk to your healthcare team if nausea lasts more than 48 hours or vomiting lasts more than 24 hours or if it is severe.
Constipation What to look for? Having bowel movements (going poo) less often than normal. Small hard stools (poo) that look like pellets. The need to push hard and strain to have any stool (poo) come out. Stomach ache or cramps. A bloated belly, feeling of fullness, or discomfort. Leaking of watery stools (poo). Lots of gas or burping. Nausea or vomiting. What to do? To help prevent constipation: Try to eat more fiber rich foods like fruits with skin, leafy greens and whole grains. Drink at least 6 to 8 cups of liquids each day unless your health care team has told you to drink more or less. Be Active. Exercise can help to keep you regular. If you take opioid pain medication, ask your health care team if eating more fibre is right for you. To help treat constipation: If you have not had a bowel movement in 2 to 3 days you may need to take a laxative (medication to help you poo) to help you have regular bowel movements. Ask your health care team what to do. Ask your health care team for the Constipation Pamphlet for more information.	Talk to your health care team if it does not improve or if it is severe.

Common Side Effects (25 to 49 out of 100 people)
Side effects and what to do	When to contact health care team
Neuropathy (Tingling, numb toes or fingers) What to look for? Numbness or tingling of your fingers and toes may happen after starting your treatment. It can also happen to other parts of your body. Sometimes it can be painful and feel like a burning sensation, which may be severe. What to do? Talk to your health care team if you have symptoms of neuropathy. Numbness and tingling may slowly get better after your treatment ends. In rare cases, it may continue long after treatment ends. If you continue to have bothersome symptoms, talk to your health care team for advice.	Talk to your health care team, especially if you have trouble doing tasks like doing up buttons, writing, moving, or if you have severe pain or numbness.
Cough and feeling short of breath What to look for? You may have a cough and feel short of breath. Symptoms that commonly occur with a cough are: wheezing or a whistling breathing runny nose sore throat heartburn weight loss fever and chills Rarely this may be severe with chest pain, trouble breathing or coughing up blood. What to do? Check your temperature to see if you have a fever. Read the above section "What should I do if I feel unwell, have pain, a headache or a fever?" If you have a fever, try to talk to your health care team. If you are not able to talk to them for advice, you MUST get emergency medical help right away. If you have a severe cough with chest pain, trouble breathing or you are coughing up blood, get medical help right away.	Talk to your health care team. If you are not able to talk to your health care team for advice, and you have a fever or severe symptoms, you MUST get emergency medical help right away.
Too much or too little salt in your body What to look for? Muscle spasms, cramping, weakness, twitching, or convulsions. Irregular heartbeat, confusion or blood pressure changes. What to do? Get emergency medical help right away for severe symptoms.	Get emergency medical help right away for severe symptoms.
Infection (May be severe) What to look for? If you feel hot or unwell (for example if you have chills or a new cough), you must check your temperature to see if you have a fever. Do not take medications that treat a fever before you take your temperature (for example, Tylenol®, acetaminophen, Advil® or ibuprofen). Do not eat or drink anything hot or cold right before taking your temperature. You have a fever if your temperature taken in your mouth (oral temperature) is: 38.3°C (100.9°F) or higher at any time OR 38.0°C (100.4°F) or higher for at least one hour. What to do? Check with your health care team before getting any vaccines, surgeries, medical procedures or visiting your dentist. Keep a digital thermometer at home so you can easily check for a fever. If you have a fever: If you have a fever, try to contact your health care team. If you are unable to talk to the team for advice, you must get emergency medical help right away.	If you have a fever, try to contact your health care team. If you are unable to talk to the team for advice, you MUST get emergency medical help right away.
Diarrhea What to look for? Loose, watery, unformed stool (poo) that may happen days to weeks after you get your treatment. What to do? If you have diarrhea: Take anti-diarrhea medication if your health care team prescribed it or told you to take it. Do not eat foods or drinks with artificial sweetener (like chewing gum or ‘diet’ drinks), coffee and alcohol. Eat many small meals and snacks instead of 2 or 3 large meals. Drink at least 6 to 8 cups of liquids each day, unless your health care team has told you to drink more or less. Talk to your health care team if you can’t drink 6 to 8 cups of liquids each day when you have diarrhea. You may need to drink special liquids with salt and sugar, called Oral Rehydration Therapy. Talk to your health care team if your diarrhea does not improve after 24 hours of taking diarrhea medication or if you have diarrhea more than 7 times in one day. Ask your health care team for the Diarrhea pamphlet for more information.	Talk to your health care team if no improvement after 24 hours of taking diarrhea medication or if severe (more than 7 times in one day).
Headache; mild joint, muscle pain or cramps What to look for? A mild headache New pain in your muscles or joints, muscle cramps, or feeling achy. What to do? Take pain medication (acetaminophen or opioids such as codeine, morphine, hydromorphone, oxycodone) as prescribed. Read the above section: "What should I do if I feel unwell, have pain, a headache or a fever?" before taking acetaminophen (Tylenol®), ibuprofen (Advil®, Motrin®), naproxen (Aleve®) or Aspirin. These medications may hide an infection that needs treatment or they may increase your risk of bleeding. Rest often and try light exercise (such as walking) as it may help. Ask your health care team for the Pain pamphlet for more information.	Talk to your health care team if it does not improve or if it is severe.
Mouth sores What to look for? Round, painful, white or gray sores inside your mouth that can occur on the tongue, lips, gums, or inside your cheeks. In more severe cases they may make it hard to swallow, eat or brush your teeth. They may last for 3 days or longer. What to do? To help prevent mouth sores: Take care of your mouth by gently brushing and flossing regularly. Rinse your mouth often with a homemade mouthwash. To make a homemade mouthwash, mix 1 teaspoonful of baking soda and 1 teaspoonful of salt in 4 cups (1L) of water. Do not use store-bought mouthwashes, especially those with alcohol, because they may irritate your mouth. If you have mouth sores: Avoid hot, spicy, acidic, hard or crunchy foods. Your doctor may prescribe a special mouthwash to relieve mouth sores and prevent infection. Talk to your health care team as soon as you notice mouth or lip sores or if it hurts to eat, drink or swallow. Ask your health care team for the Oral Care (Mouth Care) pamphlet for more information.	Talk to your health care team as soon as you notice mouth or lip sores or if it hurts to eat, drink or swallow.
Trouble Sleeping Your medications may cause trouble sleeping. It may get better once your body gets used to the medication or when your treatment ends. What to look for? You may find it hard to fall asleep or stay asleep. How well you sleep may change over your treatment. For example, you may have several nights of poor sleep followed by a night of better sleep. You may wake up too early or not feel well-rested after a night's sleep. You may feel tired or sleepy during the day. What to do? Talk to your health care team if it does not improve or if it is severe.	Talk to your health care team if it does not improve or if it is severe.
Nail changes What to look for? You may have changes in nail colour, pain or tenderness, swelling of cuticles, or loosening of nails. Nails will slowly return to normal after treatment ends. What to do? Moisturize your nails and cuticles. Do not use nail polish and fake fingernails until your nails have gone back to normal. Wear gloves when doing house chores or gardening.	Talk to your health care team if it does not improve or if it is severe.

Less Common Side Effects (10 to 24 out of 100 people)
Side effects and what to do	When to contact health care team
Flu-like symptoms You may feel like you have the flu for around 2 days after your IV treatment. These flu-like symptoms may not be signs of an infection. What to look for? You may have chills, headache and muscle pain. You may feel tired and have a poor appetite. Symptoms may happen at any time after you receive your treatment and usually go away as your body gets used to the medication. What to do? Check your temperature to see if you have a fever. Read the above section "What should I do if I feel unwell, have pain, a headache or a fever?" If you do have a fever, try to speak to your health care team. If you are unable to talk to them for advice, you MUST get emergency medical help right away.	Talk to your health care team if it does not improve or if it is severe.
Allergic reaction (May be severe) What to look for? Fever, itchiness, rash, swollen lips, face or tongue, chest and throat tightness. It may happen during or shortly after your treatment is given to you and may be severe. What to do? Tell your nurse right away if you feel any signs of allergic reaction during or just after your treatment. Talk to your health care team for advice if you have a mild skin reaction.	Get emergency medical help right away for severe symptoms.
Mood changes What to look for? You may feel hopeless or sad most of the day. You may feel anxious, nervous, restless, agitated or stressed. You may feel like you have less energy or have little or no interest in activities that you usually enjoy. You may have confusion. What to do? Eating well and exercising may give you more energy and help you feel better. Always check with your health care team before starting a new exercise program to make sure it is safe for you. Try to keep a regular bedtime routine. Go to bed and get up at the same time every day. Get support from your family, friends, community and your health care team. Talk to your health care team if your mood changes do not improve or if they are severe. If you have confusion, get emergency medical help right away.	Talk to your health care team if it does not improve or if it is severe.
Dry mouth What to look for? You may have a dry or sticky feeling in your mouth or throat, Your saliva may be thick and stringy. You may have cracks in your lips or at the corners of your mouth You may have difficulty chewing, tasting, swallowing or talking What to do? Use sugar-free gum or lozenges (e.g. those that contain xylitol) to help keep your mouth moist. Suck on ice chips or sugarless popsicles to help relieve dry mouth. Rinse your mouth often (every 1 to 2 hours) with a homemade mouthwash. To make a homemade mouthwash, mix 1 teaspoon of baking soda and 1 teaspoon of salt in 4 cups (1L) of water. Do not use store-bought mouthwashes, especially those with alcohol because they may irritate dry your mouth. Spray your mouth with water or artificial saliva products (e.g., Moi-Stir Spray®, Biotene® products) as needed to keep it moist. Apply mouth lubricant (like Biotene Oral balance gel®) after you brush your teeth, at bedtime, and as needed. Use a steam vaporizer at night to relieve nighttime dry mouth. Speak to your health care team about the right product for you. Ask your health care team for the Mouth Care pamphlet for more information. Talk to your health care team if your dry mouth does not improve or if it is severe.	Talk to your health care team if it does not improve or if it is severe.
Liver problems Your health care team may check your liver function with a blood test. Liver changes do not usually cause any symptoms. What to look for? Rarely, you may develop yellowish skin or eyes, unusually dark pee or pain on the right side of your belly. This may be severe. What to do? If you have any symptoms of liver problems, get emergency medical help right away.	Get emergency medical help right away.
Dizziness What to look for? You may feel light-headed and like you might faint (pass out). What to do? Lay down right away so you do not fall. Slowly get up and start moving once you feel better. Do not drive a motor vehicle or use machinery if you feel dizzy.	Talk to your health care team if it does not improve or if it is severe.
Taste changes What to look for? Food and drinks may taste different than usual. What to do? Eat foods that are easy to chew, such as scrambled eggs, pasta, soups, cooked vegetables. Taste foods at different temperatures, since the flavour may change. Try different forms of foods, like fresh, frozen or canned. Experiment with non-spicy foods, spices and seasonings.	Talk to your health care team if it does not improve or if it is severe.

Other rare, but serious side effects are possible.
If you experience ANY of the following, speak to your cancer health care provider or get emergency medical help right away:

Eye problems such as dry eyes, redness, irritation, pain, tearing, sensitivity to light or blurred vision
Bleeding from your gums, unusual nosebleeds, bruising easily or more than normal, or blood in your urine (pee) or stools (poo). If you have bleeding that doesn’t stop or is very heavy, you must get emergency help.
Severe belly pain (may extend to your back), bloating or feeling of fullness
Pain, swelling or hardening of the vein in your arm or leg
Trouble speaking or using your arms or legs
Pain in your lower back, peeing less than usual, or weight gain that is not normal for you
Swelling in your hands, ankles, feet or other areas of your body
Irregular heartbeat, chest pain, shortness of breath or difficulty breathing

Who do I contact if I have questions or need help?

My cancer health care provider is: ______________________________________________

During the day I should contact:________________________________________________

Evenings, weekends and holidays:______________________________________________

Other Notes:

____________________________________________________________________________

July 2023 Updated/revised information sheet

For more links on how to manage your symptoms go to www.cancercareontario.ca/symptoms.

The information set out in the medication information sheets, regimen information sheets, and symptom management information (for patients) contained in the Drug Formulary (the "Formulary") is intended to be used by health professionals and patients for informational purposes only. The information is not intended to cover all possible uses, directions, precautions, drug interactions or side effects of a certain drug, nor should it be used to indicate that use of a particular drug is safe, appropriate or effective for a given condition.

A patient should always consult a healthcare provider if he/she has any questions regarding the information set out in the Formulary. The information in the Formulary is not intended to act as or replace medical advice and should not be relied upon in any such regard. All uses of the Formulary are subject to clinical judgment and actual prescribing patterns may not follow the information provided in the Formulary.

cetuximab

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