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 and the City of a Thousand Planets the war, as was the cover-up to prevent the humans from being expelled from Alpha. Valerian and Laureline disagree, stating that the commander has only been trying to save himself from the consequences for his actions, before Valerian knocks him out again. Valerian hands over the pearl he stole, and Laureline persuades him to return the converter too, ignoring procedures. While the Pearls' spacecraft prepares for takeoff, Filitt's pre-programmed robot K-Tron soldiers attack the Pearls, the government soldiers who were sent to assist Valerian, and their support staff, but are ultimately defeated. The spacecraft departs and Filitt is arrested. Valerian