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Background:
The plant's dried root contains valepotriates, which may have calming effects.
Medicinal Claims:
Valerian is used as a sedative and sleep aid, especially in parts of Europe. In two relatively well-designed studies, valerian improved sleep quality and shortened the time needed to fall asleep.
Possible Side Effects:
Headaches, excitability, uneasiness, and heart disturbances have been reported. Valerian may prolong the effect of other sedatives (such as barbiturates) when it is taken with them. People who are driving or performing other activities requiring alertness should not take it.
Last full review/revision February 2003
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