Valerian (herb) nervous system depression, they should not be used with other depressants, such as ethanol, benzodiazepines, barbiturates, opiates, kava, or antihistamine drugs. Moreover, non-pregnant adult human hepatotoxicity has been associated with short-term use (i.e., a few days to several months) of herbal preparations containing valerian and "Scutellaria" (commonly called skullcap). As an unregulated product, the concentration, contents, and potential contaminants in valerian preparations cannot be easily determined. Because of this uncertainty and the potential for toxicity in the fetus and hepatotoxicity in the mother, valerian use is discouraged during pregnancy. Valerian root is a cat attractant in a way similar to
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