Increase in reaction time caused by application of coniine in
10 mg/kg dose was not changed by the concomitant administration of morphine in increasing doses. Coniine in 20 mg/kg dose
increased reaction time in different doses of morphine application.
Morphine at 5mg/kg dose avoided animals to show any response until cut-off time so cut-off time (P < 0.01; Fig. 3).