Brand Name

    US Brand Name

    Kalydeco


    Description

    Ivacaftor is used to treat cystic fibrosis (CF). It is only used for patients who have the following mutations in their CF transmembrane conductance regulator (CFTR) gene: G551D, G1244E, G1349D, G178R, G551S, R117H, S1251N, S1255P, S549N, or S549R mutations. Your doctor will test for the presence of the mutation before you receive the medicine. Ivacaftor is a CFTR potentiator, and works by moving more chloride into the cells of your body.

    This medicine is available only with your doctor's prescription.

    This product is available in the following dosage forms:

    • Tablet
    • Granule

    Before Using

    In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

    Allergies

    Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

    Pediatric

    Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of ivacaftor in children. However, safety and efficacy have not been established in children younger than 1 month of age.

    Geriatric

    Appropriate studies on the relationship of age to the effects of ivacaftor have not been performed in the geriatric population. However, no geriatric-specific problems have been documented to date.

    Breastfeeding

    There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

    Drug Interactions

    Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

    Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

    • Levoketoconazole
    • Lonafarnib
    • Mavacamten
    • Nirmatrelvir
    • Ritonavir

    Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

    • Adagrasib
    • Alfentanil
    • Alpelisib
    • Alprazolam
    • Amiodarone
    • Amprenavir
    • Aprepitant
    • Atazanavir
    • Avacopan
    • Bedaquiline
    • Belumosudil
    • Bentazepam
    • Benzhydrocodone
    • Bictegravir
    • Boceprevir
    • Bromazepam
    • Budesonide
    • Buprenorphine
    • Carbamazepine
    • Ceritinib
    • Chlordiazepoxide
    • Cimetidine
    • Ciprofloxacin
    • Clarithromycin
    • Clobazam
    • Clofazimine
    • Clonazepam
    • Clorazepate
    • Cloxazolam
    • Clozapine
    • Cobicistat
    • Codeine
    • Colchicine
    • Conivaptan
    • Crizotinib
    • Cyclosporine
    • Dabigatran Etexilate
    • Dabrafenib
    • Darunavir
    • Delorazepam

    Other Interactions

    Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

    Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

    • Grapefruit Juice

    Other Medical Problems

    The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

    • Eye or vision problems (eg, cataracts)—Use with caution. May make this condition worse.
    • Kidney disease, severe (eg, end-stage kidney disease) or
    • Liver disease, moderate or severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

    Proper Use

    Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of side effects.

    This medicine comes with a patient information insert. Read and follow the instructions carefully. Ask your doctor if you have any questions.

    Take this medicine with fat-containing foods, including butter, cheese pizza, eggs, peanut butter, or whole milk dairy products (eg, whole milk, cheese, yogurt, breast milk, or infant formula).

    Swallow the tablet whole.

    To use the oral granules:

    • Shake the packet gently before opening it.
    • Open one packet and pour the contents into 1 teaspoon (5 milliliters) of room temperature or cold soft food or liquid (eg, applesauce, pureed fruits or vegetables, yogurt, water, breast milk, infant formula, milk, or juice).
    • Mix the granules with the soft food or liquid.
    • After mixing, give this medicine to your child within 1 hour. Make sure all medicine is taken.

    Do not eat grapefruit or Seville oranges or drink grapefruit juice or Seville orange juice while you are using this medicine. These may cause the amount of medicine absorbed in the blood to be too high.

    Dosing

    The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

    The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

    • For oral dosage forms (granules, tablets):
      • For cystic fibrosis:
        • Adults and children 6 years of age and older—150 milligrams (mg) every 12 hours.
        • Children 6 months to younger than 6 years of age—Dose is based on your body weight and must be determined by your doctor.
          • Weighing 14 kilograms (kg) or more—The dose is usually one 75 milligrams (mg) packet every 12 hours.
          • Weighing 7 kg to less than 14 kg—The dose is usually one 50 mg packet every 12 hours.
          • Weighing 5 kg to less than 7 kg—The dose is usually one 25 mg packet every 12 hours.
        • Children 4 months to younger than 6 months of age weighing 5 kg or more—Dose is based on your body weight and must be determined by your doctor. The dose is usually one 25 mg packet every 12 hours.
        • Children 2 months to younger than 4 months of age weighing 3 kg or more—Dose is based on your body weight and must be determined by your doctor. The dose is usually one 13.4 mg packet every 12 hours.
        • Children 1 month to younger than 2 months of age weighing 3 kg or more—Dose is based on your body weight and must be determined by your doctor. The dose is usually one 5.8 mg packet every 12 hours.
        • Children younger than 1 month of age—Use is not recommended.

    Missed Dose

    If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

    If you miss a dose and it is 6 hours or less from your regular schedule, take it as soon as you can. If you miss a dose and it is more than 6 hours away from your next regular dose, skip the missed dose and go back to your regular schedule.

    Storage

    Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

    Keep out of the reach of children.

    Do not keep outdated medicine or medicine no longer needed.

    Ask your healthcare professional how you should dispose of any medicine you do not use.


    Precautions

    It is very important that your doctor check your or your child's progress at regular visits to make sure that this medicine is working properly. Blood tests will be needed to check for unwanted effects.

    Check with your doctor right away if you or your child have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, unusual tiredness or weakness, or yellow eyes or skin. These could be symptoms of a serious liver problem.

    This medicine may cause serious allergic reaction, including anaphylaxis, which can be life-threatening and requires immediate medical attention. Check with your doctor right away if you have chest tightness, cough, difficulty swallowing, dizziness, fast heartbeat, hives, itching, skin rash, puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue, trouble breathing, or unusual tiredness or weakness.

    This medicine may make you dizzy. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

    Check with your doctor immediately if blurred vision, difficulty in reading, or any other change in vision occurs during or after treatment. Your doctor may want your eyes be checked by an ophthalmologist (eye doctor).

    Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal (eg, St. John's wort) or vitamin supplements.


    Side Effects

    Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

    Check with your doctor immediately if any of the following side effects occur:

    More common

    • Body aches or pain
    • chest pain
    • chills
    • cough
    • difficulty with breathing or trouble breathing
    • ear congestion
    • fever
    • headache
    • loss of voice
    • runny or stuffy nose
    • sneezing
    • sore throat
    • unusual tiredness or weakness

    Less common

    • Dark urine
    • fever with or without chills
    • light-colored stools
    • loss of appetite
    • nausea
    • stomach pain
    • vomiting
    • yellow eyes or skin

    incidence not known

    • Chest tightness
    • difficulty swallowing
    • dizziness
    • fast heartbeat
    • hives, itching, skin rash
    • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

    Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

    More common

    • Blemishes on the skin
    • diarrhea
    • difficulty with moving
    • muscle aches, pain, or stiffness
    • pain in the joints
    • pimples
    • rash

    Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

    Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.






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