These observations indicate that this neurotoxin more likely imitate the signs of PD (Sharma et al., 2016). Such deterioration in the motor performance is a consequence to the observed dopaminergic neuronal death in SN along with obvious decrease in DA level in the striatum. These results are in line with former studies (Betarbet et al., 2000 and Alam and Schmidt, 2002). Herein, treatment with AMI and IMI attenuated the rotenone-induced dopaminergic neuronal loss in SN along with restoration in the striatal DA level; effects supported by a previous finding that TCA delayed the need for initiating dopaminergic therapy in PD patients (Paumier et al., 2012). Moreover, AMI prevented the degeneration of nigrostriatal dopaminergic neurons as well as the motor deficits in the 6-hydroxydopamine rat model of PD (Paumier et al., 2015). Similarly, an enhancement in rats’ motor performance and coordination in the open field and rotarod tests, respectively, was evident herein following treatment with both drugs.