Elexacaftor, tezacaftor, ivacaftor and ivacaftor (Oral route)

Pronunciation:

el-ex-a-KAF-tor, tez-a-KAF-tor, eye-va-KAF-tor, eye-va-KAF-tor

Brand Names:

  • Trikafta

Dosage Forms:

  • Tablet

Uses of This Medicine:

Elexacaftor/tezacaftor/ivacaftor and ivacaftor combination is used to treat cystic fibrosis (CF) in patients who have at least one copy of F508del mutation in their CF transmembrane conductance regulator (CFTR) gene. Your doctor will use a test to check for the mutation before you receive the medicine.

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

Before Using This Medicine:

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.

Children—

Appropriate studies have not been performed on the relationship of age to the effects of Trikafta™ in children younger than 12 years of age. Safety and efficacy have not been established.

Older adults—

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

Breast-feeding—

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.

Other medicines—

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 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.

  • Alfentanil
  • Apalutamide
  • Aprepitant
  • Atazanavir
  • Benzhydrocodone
  • Boceprevir
  • Buprenorphine
  • Carbamazepine
  • Clarithromycin
  • Cobicistat
  • Codeine
  • Conivaptan
  • Crizotinib
  • Cyclosporine
  • Dihydrocodeine
  • Diltiazem
  • Dronedarone
  • Duvelisib
  • Eliglustat
  • Enzalutamide
  • Erythromycin
  • Fentanyl
  • Fluconazole
  • Fluvoxamine
  • Fosnetupitant
  • Fosphenytoin
  • Hydrocodone
  • Idelalisib
  • Imatinib
  • Indinavir
  • Itraconazole
  • Ivosidenib
  • Ketoconazole
  • Larotrectinib
  • Lefamulin
  • Lemborexant
  • Letermovir
  • Lopinavir
  • Lorlatinib
  • Lumacaftor
  • Meperidine
  • Methadone
  • Mitotane
  • Morphine
  • Morphine Sulfate Liposome
  • Nefazodone
  • Nelfinavir
  • Netupitant
  • Nilotinib
  • Oxycodone
  • Pentazocine
  • Phenytoin
  • Posaconazole
  • Rifampin
  • Ritonavir
  • Saquinavir
  • St John's Wort
  • Sufentanil
  • Tacrolimus
  • Telaprevir
  • Telithromycin
  • Tramadol
  • Ubrogepant
  • Verapamil
  • Voriconazole

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:

  • Exposure to radiation—Use with caution. May increase risk of developing cataracts.
  • Kidney disease, severe or
  • Liver disease, moderate—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
  • Liver disease, severe—Use is not recommended in patients with this condition.

Proper Use of This Medicine:

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.

Swallow the tablets whole. Do not crush, break, or chew them.

Take this medicine with fat-containing foods, including food prepared with butter or oils, cheese, eggs, meat, nuts, or whole milk.

Do not eat grapefruit or drink grapefruit juice while you are using this medicine.

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 form (tablets):
    • For cystic fibrosis:
      • Adults and children 12 years of age and older—2 orange tablets (each tablet containing elexacaftor 100 milligrams (mg), tezacaftor 50 mg, and ivacaftor 75 mg) taken in the morning and 1 light blue tablet (containing ivacaftor 150 mg) taken in the evening, about 12 hours apart.
      • Children younger than 12 years of age—Use and dose must be determined by your doctor.

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 the time you normally take your medicine, take a dose as soon as you can. If it is more than 6 hours since the missed morning dose, take the missed dose as soon as you can, but don't take the evening dose. Take the next morning dose at its usual time. If it is more than 6 hours since the missed evening dose, skip the missed dose and take the next morning dose at the regular time. Do not take extra medicine to make up for a missed dose.

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 While Using This Medicine:

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 blurred vision, difficulty with reading, or any other change in vision occurs during or after treatment. Your doctor may want your child's 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 of This Medicine:

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:

Incidence not known
Abdominal or stomach pain
bloating of the abdomen
dark urine
light-colored stools
nausea and vomiting
yellow eyes or skin

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
Body aches or pain
chills
cough
diarrhea
difficulty in breathing
ear congestion
fever
headache
itching skin or rash
loss of voice
sneezing
sore throat
stuffy or runny nose
unusual tiredness or weakness
Less common
Anxiety
bladder pain
blemishes on the skin
bloated
bloody or cloudy urine
blurred vision
burning, dry, or itching eyes
cold sweats
coma
confusion
cool, pale skin
cramps
depression
difficult, burning, or painful urination
discharge, excessive tearing
dizziness
excess air or gas in the stomach or intestines
fast heartbeat
frequent urge to urinate
full feeling
heavy bleeding
increased hunger
lower back or side pain
nervousness
nightmares
pain
passing gas
pimples
redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
seizures
shakiness
skin rash, encrusted, scaly, and oozing
slurred speech

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.


Last Updated: 5/1/2020
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