Valerian (herb) mild nervous tension and to aid sleep; EMA stated that although there is insufficient evidence from clinical studies, its effectiveness as a dried extract is considered plausible. In the United States, valerian extracts are sold as a nutritional supplement under the Dietary Supplement Health and Education Act of 1994. Oral forms are available in both standardized and unstandardized forms. Standardized products may be preferable considering the wide variation of the chemicals in the dried root, as noted above. When standardized, it is done so as a percentage of valerenic acid or valeric acid. Because the compounds in valerian produce central
Valerian Engelhardt officer. In 1852 he received the rank of lieutenant general and was appointed to a senior post in the Corps of Civil Engineers. Engelhardt died on May 20, 1856 in St. Petersburg and is buried in the Volkov Lutheran cemetery. Valerian Engelhardt Valerian Engelhardt () (1798–1856) was a Russian lieutenant general and director of the Russian Institute of Railway Engineers. Engelhardt was born into the nobility of Livonia as a member of the Engelhardt family on December 24, 1798, the son of Colonel F. H. Engelhardt. His brother Nicholas Engelhardt also became a lieutenant general and member of the Order