“…As usual, as a group, the pharmacokinetic parameters differ in these patients from those observed in healthy adults. During the first month of life, about 75% of the total bodyweight is water, leading to Table 5.1.5 Selected pharmacokinetic data for b-lactam antibiotics after oral administration (data adapted from Price, 1970;Barza and Weinstein, 1976;Meyers et al, 1983;Drusano et al, 1984;Wise, 1990;Kinzig et al, 1992;Nathwani and Wood, 1993;Barradell and Bryson, 1994;Mattie, 1994;Rains et al, 1995;Perry and Brogden, 1996;Brogden and Spencer, 1997;MacGregor and Graziani, 1997;Mouton et al, 2000;Majumdar et al, 2002;Matthews and Lancaster, 2009 a C max values for IV/IM-administered antibiotics relate to maximum plasma concentration after infusion; plasma levels were generally two-to fourfold lower after IM doses. b After oral administration of the prodrug pivmecillinam; half-life of prodrug in whole blood G10 minutes at pH 7.4 and 37 C (Roholt et al, 1975).…”