Drugs Home > Ivacaftor

When and How to Take This Medicine

Some general considerations to keep in mind during treatment with ivacaftor include the following:
  • Ivacaftor comes in tablet form. Depending on a number of factors, it is taken by mouth once a day, twice a day, or twice a week.
  • For people taking this medication twice daily, take the doses about 12 hours apart. For those taking it once a day, make sure to take it at the same time each day.
  • Make sure to take ivacaftor with a high-fat meal. This should not be a problem for most people, as a high-fat diet is usually recommended for people with cystic fibrosis. This helps increase the absorption of the drug.
  • For the medication to work properly, it must be taken as prescribed.

Dosing Information for Ivacaftor

The dose of ivacaftor your healthcare provider recommends will vary, depending on a number of factors, including:
  • Your age
  • Your liver function
  • Other medications you are taking.
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.
(Click Ivacaftor Dosage for more information.)

Drug Interactions

Ivacaftor may react with a number of other medications (see Drug Interactions With Ivacaftor).

What If I Take an Overdose?

It is unknown exactly what to expect from an overdose of ivacaftor. If you happen to take too much of this medication, seek immediate medical attention.
(Click Kalydeco Overdose for more information.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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