You may not be able to use valerian if you have certain medical conditions. It is not known whether valerian will harm an unborn baby. Do not use this product without medical advice if you are pregnant. It is not known whether valerian passes into breast milk or if it could harm a nursing baby.
Do not use this product without medical advice if you are breast-feeding a baby. Get emergency medical help if you have any of these signs of an allergic reaction : hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Although not all side effects are known, valerian is thought to be possibly safe when taken for a short period of time 4 to 8 weeks. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. Valerian may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. This includes 5-HTP 5-hydroxytryptophan , California poppy, catnip, chamomile, gotu kola, Jamaican dogwood, kava, melatonin, St.
While most reported side effects of valerian are mild, some people should be especially cautious about taking this supplement. Valerian is a root that has been used for centuries as a sleep aid, and is also often touted for its anti-anxiety properties.
But almost across the board, studies have concluded that for most people, valerian is safe, with few serious side effects reported. Even when it comes to known risks associated with valerian, there are reasons to be cautious with this herb.
In all the clinical studies of valerian, there have been few reported serious side effects, according to the National Institutes of Health. Because valerian is often taken as a sleep aid, drowsiness is usually considered a desired outcome rather than a side effect.
If you take valerian at bedtime and find it more difficult to fall asleep than usual, this may be happening. If you continue to have insomnia, talk to your doctor about possible causes and treatment strategies. Or consider getting an evaluation at a sleep medicine center that's accredited by the American Academy of Sleep Medicine.
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Mayo Clinic does not endorse any of the third party products and services advertised. A single copy of these materials may be reprinted for noncommercial personal use only. This content does not have an English version. This content does not have an Arabic version. See more conditions. This is best for insomnia or sleep trouble. For tea, soak 2 to 3 grams of dried herbal valerian root in 1 cup of hot water for 10 to 15 minutes. Valerian root seems to work best after taking it regularly for two or more weeks.
For anxiety, take to mg, three times per day. Your last dose of valerian root should be right before bedtime. The recommended dosage for anxiety is generally lower than the dosage for insomnia. This is because taking high doses of valerian root during the day can lead to daytime sleepiness. Many small clinical studies have been done to test the efficacy and safety of valerian root for sleep. Results have been mixed: In a placebo-controlled study , for example, women with insomnia took mg of valerian extract 30 minutes before bedtime for two weeks.
The women reported no significant improvements in the onset or quality of sleep. Likewise, a review of 37 studies found that most clinical trials of valerian root showed no differences between valerian root and placebo on sleep. These studies were done in both healthy individuals and people with insomnia.
But the National Institutes of Health NIH describes an old study showing that mg of valerian root extract did significantly improve sleep compared to placebo in healthy volunteers.
Participants reported improvements in the time needed to fall asleep, quality of sleep, and number of middle of the night awakenings. The NIH also noted a clinical trial in which people with insomnia taking mg of dried valerian root had decreased symptoms of insomnia compared to the placebo after 28 days of treatment.
Research on the use of valerian root in treating anxiety is somewhat lacking. One small study in 36 patients with generalized anxiety disorder found that 50 mg of valerian root extract given three times a day for four weeks significantly reduced one measure of anxiety compared to placebo.
Other anxiety studies used slightly higher dosages. The U. Also avoid combining it with sedative drugs, such as barbiturates e. Valerian root also has a sedative effect, and the effect can be addictive.
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