Hypericum species have been used as herbal remedies for the therapy of
various neurological disorders. In the present study, the effects of
Hypericum calycinum on the central nervous system were investigated us
ing various behavioural models including swimming time, locomotor acti
vity, tail-flick and hole-board experiments. According to the results
obtained, it was found that the extract prepared from H. calycinum is
as effective as the antidepressant drugs, desipramine and trimipramine
, which were used for comparison with this plant extract in animal mod
els.