Table 2

Analgesic effect of the different extracts of Cyperus rotundus on acetic acid-induced writhings
Treatment Doses (mg/kg) Acetic acid writhing contractiona Percent inhibition (%)
Control - 14 ± 0,70 -
Diclofenac sodium 25 10,33 ± 4,04 26,21
50 1,5 ± 0,7* 89,30
100 0 ± 0* 100
TOF enriched extract 50 5,4 ± 0,54* 61,42
150 3,2 ± 0,83* 77 ,2
300 1 ± 1* 92,8
Aqueous extract 50 11 ± 1,58* 21,5
150 8 ± 0,70* 42,9
300 4,8 ± 0,83* 65,7
Ethyl acetate extract 50 10 ± 2,73* 28,6
150 8,2 ± 1,92* 41,4
300 5,2 ± 1,30* 63
Methanolic extract 50 8 ± 2,88 10
150 11,2 ± 1,92* 20
300 8 ± 1* 43

a Values are expressed as mean ± standard deviation (n = 5 animals). *P < 0,05 compared to corresponding control (Student’s t-test).

Soumaya et al.

Soumaya et al. BMC Complementary and Alternative Medicine 2013 13:28   doi:10.1186/1472-6882-13-28

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