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  • Generic Name: (panitumumab)
    Other Brands: N/A
  • Last Revised: 05/2015
    • What is this medication and its most common uses?

      Vectibix is an anticancer medicine used alone or in combination with other medicines to treat a certain type of colorectal cancer that has spread to other parts of the body. Vectibix is administered intravenously (through a vein in your arm).

    • What should I know when beginning and continuing on this medication?

      How does this medication work?

      Vectibix works by slowing or stopping the growth of cancer cells.

      What are the beneficial effects of this medication and when should I begin to have results?

      What: By stopping the growth of cancer cells, Vectibix may help to improve your symptoms associated with cancer.

      When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider's directions.

      How do I know it is working?

      Your healthcare provider may order tests regularly to check how well this medication is working.

    • What are the possible side effects of this medication?

      The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

      Vectibix can cause serious skin reactions. Tell your healthcare provider right away if you experience symptoms such as rash, redness, itching, or dry skin. Vectibix may also cause serious and life-threatening infusion reactions, with symptoms such as fever, chills, breathing problems, or low blood pressure.

      More common side effects may include: redness, itching, rash, tiredness, nausea, diarrhea, canker sores, weakness, loss of appetite, dry skin, skin infection around your nail.

      Less common side effects may include:

      Eye problems with symptoms such as irritation or changes in your vision.

      Lung problems with symptoms such as shortness of breath and a cough that does not go away.

    • Who should not take this medication?

      Your healthcare provider will not administer Vectibix to you if you are allergic to it or any of its ingredients.

    • What should I tell my healthcare provider before I take the first dose of this medication?

      Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Vectibix. Also, talk to your healthcare provider about your complete medical history, especially if you have low potassium, magnesium, or calcium levels, or if you are pregnant, plan to become pregnant, or are breastfeeding.

    • What is the usual dosage?

      The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

      Adults: Your healthcare provider will prescribe the appropriate dose for you, based on your weight.

    • How should I take this medication?

      Your healthcare provider will administer Vectibix to you.

      Vectibix is usually administered over 60 to 90 minutes, every 14 days.

      It is important that you use appropriate forms of birth control while receiving Vectibix and for 6 months after the last dose. Discuss with your healthcare provider about reliable contraception.

      Drink plenty of fluids while you are taking Vectibix.

    • What should I avoid while taking this medication?

      Do not miss any scheduled follow-up appointments with your healthcare provider.

      Do not expose your skin to excessive amounts of sunlight during your treatment with Vectibix and for 2 months following your last dose. Use sunscreen and wear hats when going outdoors.

    • What are the possible food and drug interactions associated with this medication?

      No significant interactions have been reported with Vectibix at this time. However, always tell your healthcare provider about any medicines you take, including over-the-counter medications, vitamins, and herbal supplements.

    • May I receive this medication if I am pregnant or breastfeeding?

      Vectibix may harm your unborn baby if you receive it during pregnancy. Do not breastfeed while you are receiving Vectibix. Do not restart breastfeeding until at least 2 months after the last dose of Vectibix. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

      If you become pregnant or breastfeed while taking Vectibix, talk to your healthcare provider about registering with Amgen's Pregnancy and Lactation Surveillance Programs. The purpose of this program is to collect information about the safety of this medicine during pregnancy and breastfeeding.

    • What should I do if I miss a dose of this medication?

      Vectibix should be given under special circumstances determined by your healthcare provider. If you miss your scheduled dose, contact your healthcare provider for advice.

    • How should I store this medication?

      Your healthcare provider will store this medication for you.

    • Who should I contact in case of emergency or overdose?
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      In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
      National Poison Control#: Call 1-800-222-1222

      This PDR+ drug information has been developed by the Physicians’ Desk Reference Network (PDRN), a source of medication information trusted by doctors for over 65 years.

      This monograph summarizes the most important information about your medication and does not cover all the information you may need. If you have any questions or concerns or want to learn more about your medication, ask your healthcare provider; he/she will be able to provide answers to your questions. This medication should only be used by the patient for whom it was prescribed and should not be shared with other people.
    • Additional patient resources.
      back to top Use your PDR® Pharmacy Discount Card when you or a family member fills a prescription and ask for your PDR® Discount every
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