Valerian root is an herbal supplement that can improve sleep and ease tension headaches. It has also been shown to decrease anxiety and depression. Valerian root works with your body’s chemistry to help get your nightly rest back on track. In addition, evidence-based studies and systemic reviews indicate that there are several other positive effects of this herb, including its ability to relieve nervousness, anxiety, tension, menstrual cramps and high blood pressure. Valerian root is a popular herbal supplement often used to promote sleep and ease anxiety. Learn what research says regarding valerian's benefits and risks. Valerian root is an herbal supplement touted to help with sleep and anxiety. 1 If you decide to try this remedy, keep in mind that while side effects are rare, they can be serious, especially at high dosages. I read that the herbal supplement valerian can help you fall asleep if you have insomnia. Is valerian safe, and does it actually work? Results from multiple studies indicate that valerian — a tall, flowering grassland plant — may reduce the amount of time it takes to fall asleep and help you sleep better. Find patient medical information for Valerian on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Valerian root is a cat attractant, containing attractant semiochemicals in a way similar to catnip, which can affect cat behaviour. [40] Its roots and leaves are one of three alternatives for the one-third of domesticated or medium-sized cats who do not feel the effects of catnip. [40][41] Valerian root has also been reported to be attractive. Valerian is an herb used to promote relaxation and sleep. This article explains all you need to know about valerian and its effects and safety. Valerian is a flowering plant, the root of which is dried and used as an herbal remedy. Valerian has been used in alternative medicine as a possibly effective aid in treating sleep problems (insomnia). This fact sheet provides basic information about valerian—common names, usefulness and safety, and resources for more information.