TABLE 2

Pharmacokinetic constants for plasma HMMA after administration of 2 and 10 mg/kg MDMA to rats

Parameters were calculated from HMMA time-concentration profiles depicted in Fig. 4, with WinNonlin noncompartmental modeling. Data are the mean ± S.D. for n = 4–5 rats/group.

MDMA TreatmentHMMA CmaxHMMA TmaxHMMA AUCHMMA t1/2
ng/ml h h·ng/ml h
2 mg/kg i.p.186 ± 884.25 ± 0.87926 ± 4172.25 ± 0.23
2 mg/kg s.c.236 ± 873.88 ± 0.751192 ± 2512.66 ± 0.70
2 mg/kg p.o.141 ± 593.86 ± 0.75702 ± 2572.57 ± 0.88
10 mg/kg i.p.474 ± 2685.50 ± 1.502478 ± 14332.73 ± 0.57
10 mg/kg s.c.270 ± 1066.20 ± 1.101373 ± 3753.42 ± 2.23
10 mg/kg p.o.309 ± 956.13 ± 1.751747 ± 4673.26 ± 0.95