Table 2: Sedative effect of aqueous extract of Lavandula officinalis. p.o. means oral route; i.p. means intraperitoneal route; means number of mice per group; sec means seconds; AE means aqueous extract; DZP means diazepam. Data are expressed as mean ± SD; versus the control group.

Test Control Diazepam i.p. Aqueous extract of Lavandula officinalis p.o. DZP (3 mg/kg) AE (100 mg/kg) AE (200 mg/kg) AE (400 mg/kg) Traction test Re-establishment time 0.09 sec ± 0.0 10 sec ± 0.3 2 sec ± 0.3 12 sec ± 0.5* Fireplace test Time to go back the tube in seconds 7 sec ± 0.5 >2 min 12 sec ± 0.1 45 sec ± 1* Hole-board test Explored holes during 5 minutes 1 ± 0.0*