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Table 1 The antinociceptive activity of individual curcumin, piperine, and curcumin-piperine combination in the formalin, tail-flick and cold plate tests

From: Combination of curcumin and piperine synergistically improves pain-like behaviors in mouse models of pain with no potential CNS side effects

 

ED50 ± SEM

γ

Curcumin

Piperine

Combination

Theoretical additive

Experimental

Formalin Test

71.4 ± 21.9

18.4 ± 3.1

44.9 ± 12.5

5.9 ± 2.2 ***

0.13

Tail-Flick Test

34.4 ± 6.1

8.1 ± 0.8

21.3 ± 3.4

5.2 ± 0.6 ***

0.24

Cold Plate Test

31.9 ± 5.5

28.1 ± 6.3

30.0 ± 5.9

5.5 ± 0.7

0.18

  1. ED50, dose required to exert 50% antinociception; ED50 add, theoretical ED50; ED50 exp, experimental ED50; γ, interaction index