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 (emperor) the post. During the reign of Decius he was left in charge of affairs in Rome when that prince left for his ill-fated last campaign in "Illyricum". Under Trebonianus Gallus he was appointed "dux" of an army probably drawn from the garrisons of the German provinces which seems to have been ultimately intended for use in a war against the Persians. However, when Trebonianus Gallus had to deal with the rebellion of Aemilianus in 253 AD it was to Valerian he turned for assistance in crushing the attempted usurpation. Valerian headed south but was too late: Gallus was killed by