The flowering shrub, valerian has been used as a medicine since the time of ancient Greece and Rome, according to the National Center for Complementary and Alternative Medicine. The roots and rhizomes of the valerian plant contain a host of compounds, including volatile oils and alkaloids, although which of valerian's constituents are responsible for its therapeutic effects is unclear. Valerian is primarily used as a treatment for insomnia. It is also sometimes used to treat anxiety and attention deficit hyperactivity disorder, although evidence to show it is an effective treatment for these disorders is weak. Don't use valerian without first consulting a doctor and don't use it in place of prescription medicines.
Anxiety
Most people experience worry or tension from time to time. Anxiety, however, is characterized by excessive worry and dread and can have a serious impact on an individual's ability to cope with everyday life. Valerian is sometimes used as an alternative remedy for anxiety, although the National Center for Complementary and Alternative Medicine states that there is not enough scientific evidence to determine whether valerian works for anxiety. In addition, an analysis of data from clinical trials, published in the October 2006 issue of the "Cochrane Database of Systematic Reviews" concludes that there is insufficient evidence to draw any conclusions about valerian's efficacy as an anxiety treatment.
ADHD
Attention deficit hyperactivity disorder, more commonly known as ADHD, is a behavioral disorder that most commonly affects school-aged children. It is usually treated by behavioral therapy with medicines that stimulate the nervous system such as methylphenidate and dextroamphetamine. The University of Maryland Medical Center notes that herbs, including valerian, are also sometimes recommended for people with ADHD. However, studies to evaluate whether valerian can improve ADHD symptoms are lacking, therefore it is impossible to say for certain whether valerian is helpful for patients with ADHD.
Administration
The roots and underground stems of valerian are used to make teas, liquid tinctures and tablets. However, guidance regarding a dose that might be beneficial for people with ADHD or anxiety is lacking. Your doctor or pharmacist, however, might be able to advise on a suitable dose.
Safety Considerations
The National Center for Complementary and Alternative Medicine states that using valerian for four to six weeks is likely safe, but adds that its long-term safety is unclear. It may cause side effects including dizziness, fatigue and headaches. It might also heighten the effects of other medicines you may be using including benzodiazepines. Stop taking valerian and see your doctor if you experience any unusual effects while using this herb.
References
- National Center for Complementary and Alternative Medicine: Valerian
- Memorial Sloan-Kettering Cancer Center: Valerian
- "Cochrane Database of Systematic Reviews"; Valerian for Anxiety Disorders; L.S. Miyasaka, et al.; October 2006
- University of Maryland Medical Center: Attention Deficit Hyperactivity Disorder
