The Valerian (Valeriana officinalis) is a perennial plant, fairly common in humid forests and along streams from plains to submontane areas. In medicine, the root or its phytoextracts are usually used. It is one of the great drugs for nervous balance. It is widely used as a sedative and calming in hysteria, neurasthenic manifestations (insomnia, neurosis, abdominal cramps (colic), hyperexcitability, etc.), in menopausal disorders and as an antispasmodic in a broad sense. It is used in convulsive disorders with good results, alone or associated with anticonvulsants. In some women its use as a mild sedative can have a paradoxical effect and lead to excitement.