Pharmacokinetic Parameter

GHB

GHB + Lactate/mannitol

P-value

AUC (ug/mL∙hr)

191 (71)

183 (52)

0.593

Cl/F (L/hr)

20.4 (7.7)

20.4 (6.6)

0.983

Cmax (ug/mL)

102 (27)

111 (31)

0.533

% dose excreted in urine

2.2 % (1.2)

3.2 % (1.6)

0.021

ClR (mL/hr)

439 (222)

615 (263)

0.001

Results are from administration of GHB 50 mg/kg orally to 10 healthy volunteers alone and with L-lactate/mannitol. Data are presented as mean ± SD. Cl/F=total oral clearance, Cmax=maximum plasma concentration, ClR=renal clearance. Paired t-tests were used to detect significant differences in pharmacokinetic parameters.
Table 2:  Effect of L-lactate/mannitol administration on GHB pharmacokinetics.