Valerian (herb) particular binding site. Hydrophilic extractions of the herb commonly sold over the counter, however, probably do not contain significant amounts of isovaltrate. Valerenic acid in valerian stimulates serotonin receptors as a partial agonist, including 5-HT which is implicated in the sleep-wake cycle. The chief constituent of valerian is a yellowish-green to brownish-yellow oil present in the dried root, varying in content from 0.5 to 2.0%. This variation in quantity may be determined by location; a dry, stony soil yields a root richer in oil than moist, fertile soil. The volatile oils that form the active ingredient are pungent, somewhat reminiscent
Valerian and Porcian laws Valerian and Porcian laws The Valerian and Porcian laws were Roman laws passed between 509 BC and 184 BC. They exempted Roman citizens from degrading and shameful forms of punishment, such as whipping, scourging, or crucifixion. They also established certain rights for Roman citizens, including Provocatio, the right to appeal to the tribunes of the plebs. The Valerian law also made it legal to kill any citizen who was plotting to establish a tyranny. This clause was used several times, the most important of which was its usage by Julius Caesar's assassins. The first Valerian law was enacted by Publius