- Skin problems like acne, itching, redness, rash, and dry or cracked skin are common with this drug. Very bad skin problems, infections, and tissue damage have also happened with this drug. Sometimes these have been life-threatening or deadly. Talk to your doctor about any skin changes you may have.
- A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if you have signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in your mouth, throat, nose, or eyes.
- It is used to treat colorectal cancer.
- It may be given to you for other reasons. Talk with the doctor.
- If you have an allergy to panitumumab or any other part of this drug.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have a certain gene mutation (RAS) or if you do not know if you have this type of gene mutation.
- Tell dentists, surgeons, and other doctors that you use this drug.
- If you have upset stomach, throwing up, loose stools (diarrhea), or are not hungry, talk with your doctor. There may be ways to lower these side effects.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- Have an eye exam as you have been told by your doctor.
- Avoid sun, sunlamps, and tanning beds. Use sunscreen and wear clothing and eyewear that protects from the sun while taking this drug and for at least 2 months after care ends.
- Very bad and sometimes deadly side effects have happened during the infusion. Tell your doctor if you have any bad effects during the infusion.
- Very bad loose stools (diarrhea) and fluid loss (dehydration) have happened with this drug when used with chemo drugs. This can lead to kidney problems or other health problems. Talk with your doctor.
- Blood clots have happened with this drug. Sometimes, these blood clots have been deadly. Talk with the doctor.
- People with a certain gene mutation (RAS) may not benefit from this drug. Their tumor may also get worse and chance of death may be raised. Talk with the doctor.
- If you are a man and have sex with a female who could get pregnant, protect her from pregnancy during care and for 6 months after care ends. Use birth control that you can trust.
- This drug may cause harm to the unborn baby if you take it while you are pregnant.
- Use birth control that you can trust during care and for 6 months after care ends.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of low magnesium levels like mood changes, muscle pain or weakness, muscle cramps or spasms, seizures, shakiness, not hungry, very bad upset stomach or throwing up, or a heartbeat that does not feel normal.
- Very upset stomach or throwing up.
- Very loose stools (diarrhea).
- Change in eyesight, eye pain, or very bad eye irritation.
- Not able to pass urine or change in how much urine is passed.
- Chest pain or pressure.
- Coughing up blood.
- Dry mouth.
- Mouth irritation or mouth sores.
- Redness or swelling where the shot is given.
- Very hard stools (constipation).
- Feeling very tired or weak.
- Swelling in hands or feet.
- Change in skin or finger nails.
- Very bad and sometimes deadly lung problems have happened with this drug. Call your doctor right away if you have lung or breathing problems like trouble breathing, shortness of breath, or a cough that is new or worse.
- Eye irritation.
- Feeling tired or weak.
- Belly pain.
- Upset stomach or throwing up.
- Loose stools (diarrhea).
- Eyelash growth.
- It is given as an infusion into a vein over a period of time.
- Call the doctor to find out what to do.
- This drug will be given to you in a hospital or doctor’s office. You will not store it at home.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Check with your pharmacist about how to throw out unused drugs.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
If you have any questions or concerns, talk with a member of your healthcare team. You can reach them Monday through Friday from 9:00 am to 5:00 pm at ____________________. After 5:00 pm, during the weekend, and on holidays, please call____________________. If there’s no number listed, or you’re not sure, call
Panitumumab©2015 Memorial Sloan Kettering Cancer Center - Generated on October 10, 2015