Table 3

Pharmacokinetic analysis by cytochrome P450 (CYP)2C19 genotype in infants in group 2

Wild type (*1/*1)EMs (*1/*2, *1/*3)PMs (*2/*2, *2/*3)p Value
Number634
PB concentration, μg/ml22.3 (15.3–26.7)16.4 (12.7–29.7)14.0 (9.1–22.2)0.271
Vd, litres/kg0.60 (0.44–0.90)0.60 (0.60–0.92)5.30 (5.13–15.71)0.695
CL, ml/kg/h9.3 (7.4–11.7)5.3 (5.1–15.7)14.3 (10.2–18.3)0.811
  • Median (range).

  • CL, clearance; EM, extensive metaboliser; PB, phenobarbital; PM, poor metaboliser; Vd, volume of distribution.