Valerian Root for Anxiety-Related Sleep Disturbance
Do not use valerian root for treating anxiety-related sleep disturbance in adults. Multiple high-quality clinical practice guidelines explicitly recommend against its use for insomnia, and there is no evidence supporting its efficacy for anxiety disorders.
Guideline-Based Recommendations
The American Academy of Sleep Medicine (AASM) 2017 clinical practice guideline provides a weak recommendation against using valerian for treatment of sleep onset or sleep maintenance insomnia in adults 1111. This recommendation is based on:
- Trials using variable dosages of valerian and valerian-hops combinations
- Very low quality evidence showing benefits approximately equal to harms
- No demonstrated superiority over placebo on critical outcomes
The 2020 VA/DoD guidelines similarly found no evidence supporting valerian use for chronic insomnia disorder 2. A systematic review cited in these guidelines evaluated 14 trials and found no between-group differences in:
- Daytime functioning
- Insomnia severity
- Sleep efficiency
- Sleep onset latency
- Total sleep time
- Wake after sleep onset
- Sleep quality
Evidence Quality and Efficacy
For Anxiety Disorders
There is insufficient evidence regarding valerian's efficacy for anxiety disorders 3. No high-quality studies demonstrate benefit for generalized anxiety or anxiety-related conditions.
For Sleep Disturbances
The most recent umbrella review (2024) examining all systematic reviews concluded that valerian does not have empirical support for insomnia 4. While some subjective improvements in sleep quality have been reported, these have not been confirmed with objective measurements. The evidence base is characterized by:
- Significant methodological problems across studies
- High heterogeneity in preparations, doses, and treatment duration
- Evidence of publication bias
- Contradictory results between trials
A 2024 preclinical study showed promise in mice 5, but this does not translate to clinical recommendations for human use.
Safety Profile
Valerian does have a favorable safety profile with infrequent and benign side effects 3. A 2016 study found that a single 1600 mg dose did not impair driving simulator performance or cause measurable sedation 6. However, safety alone does not justify use when efficacy is not established.
Clinical Bottom Line
Recommend evidence-based alternatives instead:
- First-line: Cognitive behavioral therapy for insomnia (CBT-I) - strongly supported by guidelines 2
- Pharmacologic options if needed: FDA-approved agents such as:
Common Pitfall to Avoid
Do not prescribe valerian simply because patients request "natural" treatments or because it is available over-the-counter. The lack of efficacy data means you would be providing false reassurance while delaying effective treatment. If patients are already using valerian, counsel them on the lack of evidence and transition to proven therapies.