Valerian (herb) some affinity for the GABA receptor, a class of receptors on which benzodiazepines are known to act. Valeric acid, which is responsible for the typical odor of mostly older valerian roots, does not have any sedative properties. Valeric acid is related to valproic acid, a widely prescribed anticonvulsant; valproic acid is a derivative of valeric acid. Valerian also contains isovaltrate, which has been shown to be an inverse agonist for adenosine A receptor sites. This action likely does not contribute to the herb's possible sedative effects, which would be expected from an agonist, rather than an inverse agonist, at this
Valerian and the City of a Thousand Planets and Laureline are left adrift onboard a still working Apollo Command/Service Module, which is identified by radio technicians as ""Destiny 2005"", and Laureline finally answers Valerian's marriage proposal with a "maybe" as they wait for rescue. Although Luc Besson loved the Valerian comics growing up, he did not seriously consider adapting them into a movie until he was working on "The Fifth Element." During development, Besson had tapped Valerian illustrator Jean-Claude Mézières to work on the film, who asked Besson, "Why are you doing this shitty film? Why you don’t do Valerian?" At the time, Besson felt that making the