Figure 4.

Effect of previous intraperitoneal injection of the vehicle (0) or TKI (13.6–136 μmol kg⁻¹) on capsaicin-induced (1.6 μg paw⁻¹) neurogenic pain in mice. Positive control animals were pretreated with fentanyl (Fen, 19–190 nmol kg⁻¹). The light column represents the values of animals injected with the vehicle. The columns and vertical bars are means±s.e.mean of eight animals. ^*Different from vehicle treated mice (P<0.05).