Table 1: Doses of ivacaftor for cystic fibrosis patients

according to age and weight.

Age (month)

Dosage (packet BID)

1 to 2

One 5.8 mg

2 to 4

One 13.4 mg

4 to 6 (≥ 5 kg)

One 25 mg

6 months to 6 years

5 to 7 kg one 25 mg

7 to14 kg one 50 mg

≥ 14 kg one 75 mg

6 years or more

One 150 mg tablet BID

BID = bis in die (twice a day).