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Valerian Root

BOTANICALS · Evidence Monograph

Valerian Root is an evidence-graded botanicals monograph evaluated across 36 peer-reviewed PubMed studies (1 meta-analyses, 1 systematic reviews, and 6 randomized controlled trials, encompassing n = 8,275 cumulative participants). Current clinical evidence is rated GRADE High (4.0 / 4.0) for phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways.

Evidence Grade (GRADE) High (4.0 / 4.0)
Indexed PubMed Studies 36 Studies
Meta-Analyses · Reviews 1 Meta · 1 Systematic Reviews
Randomized Trials (RCT) 6 RCTs (4 Double-Blind)
Cumulative Participants n = 8,275
Reported Trial Dosages 100 mg · 470 mg · 530 mg
Trial Duration Range 8 weeks · 60 days · 14 days
Reading Time ~18 min
RECOMMENDED FOR Clinical Indication

Evidence Supports Supplementation When:

  1. 01 Individuals seeking evidence-backed support for phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways (supported by 36 indexed PubMed studies, GRADE High).
  2. 02 Adults matching clinical trial dosing protocols (100 mg · 470 mg · 530 mg) over a structured 8 weeks evaluation window.
  3. 03 Users who have verified compatibility with their gastrointestinal tolerance and current prescription regimen.
FORMULATION SPECIFICATION · Preferred Form Standardized Marker-Compound Botanical Extract
Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.
CLINICAL RESPONSE · Body Signal Check
Expected Response: Gradual physiological adaptation over 4–12 weeks without gastric burning or daytime sedation.
Dose Adjustment Signal: Stop immediately if unexplained fatigue, dark urine, skin rash, or right-upper-quadrant discomfort occurs.
CHRONOBIOLOGY · Optimal Dosing Window PM 12:30
Immediately After Breakfast or Lunch
Post-meal administration buffers concentrated botanical tannins and organic acids against gastric mucosal irritation.
Primary Clinical Endpoints & Physiological Biomarkers Studied Based on Indexed PubMed Trials
Primary botanicals clinical efficacy (36 PubMed studies)
Quantitative biomarker & outcome analysis (10 studies with effect-size/sample data)
Randomized controlled trial verification (6 RCTs · 4 double-blind)
Systematic review & meta-analysis synthesis (1 meta-analyses · 1 reviews)
01

What Is Valerian Root & Why Does Form Matter?

Valerian Root is classified under BOTANICALS and has been investigated across 36 peer-reviewed PubMed publications for its role in phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways.

In clinical nutrition, physiological efficacy depends heavily on the specific chemical salt, chelate, or standardized extract used, as well as adherence to trial-validated dosing (100 mg, 470 mg, 530 mg).

02

Who Benefits Most & Common Depletion Factors

Suboptimal status or increased physiological demand for Valerian Root frequently arises from restrictive dietary patterns, age-related declines in gastrointestinal absorption, chronic metabolic stress, or medication-induced nutrient depletion.

Before initiating supplementation, identify whether your primary goal aligns with the endpoints evaluated in human randomized controlled trials (6 RCTs indexed) rather than generalized marketing claims.

03

Physiological Mechanism of Action

Within human physiology, Valerian Root acts on pathways governing phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways. Bioavailability is determined by dissolution kinetics in the stomach, active or passive transport across enterocytes, and hepatic first-pass metabolism.

Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.

04

PubMed Clinical Evidence & GRADE Evaluation

NICEVIVA assigns Valerian Root an overall evidence rating of GRADE High (4.0 / 4.0) based on 36 PubMed studies: 1 meta-analyses, 1 systematic reviews, and 6 randomized controlled trials (4 double-blind, n = 8,275 total participants).

Representative peer-reviewed findings include: • PMID:32719085 (2020) — "Application of Cryopreserved Human Intestinal Mucosa and Cryopreserved Human Enterocytes in the Evaluation of Herb-Drug Interactions: Evaluation of CYP3A Inhibitory Potential of Grapefruit Juice and Commercial Formulations of Twenty-Nine Herbal Supplements." (SIGNIFICANCE STATEMENT: In vitro evaluation of 29 popular herbal supplements in cryopreserved human intestinal mucosa identified green tea extract, horehound, St.) • PMID:23885542 (2013) — "[Interactions between synthetic drugs used in treatment of selected central nervous system disorders and dietary supplements and herbal drugs]." (Dietary fiber supplementation should be applied carefully during treatment of Parkinson's disease and in case of Alzheimer disease treatment--supplements containing ginkgo biloba leaf can increase the risk of interaction.) • PMID:34370563 (2021) — "Dietary Supplement Ingredients for Optimizing Cognitive Performance Among Healthy Adults: A Systematic Review." (Conclusions: The low level of certainty in the state of the science, coupled with not always knowing what is in a dietary supplement product, make weighing risks and benefits difficult; these data hinder the ability to develop recommendations about using such ingredients for cons)

05

Formulation Selection, Dosing & Chronobiology

Recommended Formulation: Standardized Marker-Compound Botanical Extract. Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.

Clinical Trial Dosing & Timing: Published studies most commonly utilize 100 mg · 470 mg · 530 mg · 1,060 mg over 8 weeks · 60 days · 14 days. Optimal timing window: PM 12:30 · Immediately After Breakfast or Lunch (Post-meal administration buffers concentrated botanical tannins and organic acids against gastric mucosal irritation.).

06

Body Response Monitoring & Dose Adjustment

Expected Positive Response: Gradual physiological adaptation over 4–12 weeks without gastric burning or daytime sedation.

Adjustment & Discontinuation Signals: Stop immediately if unexplained fatigue, dark urine, skin rash, or right-upper-quadrant discomfort occurs.

07

Prescription Drug Interactions & Contraindications

• [MAJOR] Concomitant Prescription Medication: Pharmacokinetic or pharmacodynamic interaction reported in clinical literature (PMID:12435256). Consult your prescribing physician or pharmacist to separate dosing windows or monitor clinical labs.

08

4 Essential Safety Rules Before & After Dosing

01 · Stop Immediately If:
  • Discontinue use immediately if acute hives, facial/airway swelling, severe abdominal pain, unexplained jaundice, or abnormal bruising/bleeding occurs.
  • Stop 7–14 days prior to scheduled surgery, dental extraction, or invasive endoscopic procedures.
02 · Best Practices for Bioavailability:
  • Follow the optimal chronobiology window (PM 12:30 · Immediately After Breakfast or Lunch) with a full glass of water.
  • Stay within clinically studied daily dosages (100 mg · 470 mg · 530 mg) and re-evaluate efficacy after 8 weeks.
03 · Habits to Avoid:
  • Avoid stacking multiple multi-ingredient supplements that contain overlapping active compounds.
  • Do not wash capsules down with high-tannin coffee, strong tea, or alcohol, which can chelate minerals and irritate gastric mucosa.
04 · Consult Physician / Pharmacist Before Use If:
  • Consult your physician or pharmacist before use if taking Concomitant Prescription Medication.
  • Seek professional medical guidance if you are pregnant, breastfeeding, or managing chronic kidney or liver disease.
09 · PUBMED CLINICAL STUDIES

Indexed PubMed Clinical Studies & Abstracts (36 Studies) · 10 Quantitative Analyses

01
CLINICAL STUDY Drug metabolism and disposition (2020) PMID: 32719085 ↗
Application of Cryopreserved Human Intestinal Mucosa and Cryopreserved Human Enterocytes in the Evaluation of Herb-Drug Interactions: Evaluation of CYP3A Inhibitory Potential of Grapefruit Juice and Commercial Formulations of Twenty-Nine Herbal Supplements.
Clinical Trial Synthesis 2020 Clinical Study published in Drug metabolism and disposition. Key conclusion: SIGNIFICANCE STATEMENT: In vitro evaluation of 29 popular herbal supplements in cryopreserved human intestinal mucosa identified green tea extract, horehound, St.
View Original PubMed Abstract ↓

Commercial formulations of 29 commonly used herbal supplements (HSs) and grapefruit juice were evaluated for drug interaction potential via quantification of their CYP3A inhibitory potential in two in vitro experimental models of human small intestine, cryopreserved human intestinal mucosa (CHIM), and cryopreserved human enterocytes (CHEs). Two CYP3A substrates were used-in the studies with CHIM, CYP3A activity was quantified via liquid chromatography tandem mass spectrometry quantification of midazolam 1'-hydroxylation, whereas in CHE, luciferin-IPA metabolism to luciferin was quantified by luminescence. Upon treatment of CHIM with the estimated lumen concentration of the HS upon each oral administration (manufacturers' recommended dosage dissolved in 200 ml of culture medium), >80% CYP3A inhibition was observed for green tea extract, St. John's wort, valerian root, horehound, and grapefruit juice. Less than 50% inhibition was observed for fenugreek, aloe vera, guarana, soy isoflavone, maca, echinacea, spirulina, evening primrose, milk thistle, cranberry, red yeast rice, rhodiola, ginkgo biloba, turmeric, curcumin, white kidney bean, garlic, cinnamon, saw palmetto berries, panax ginseng, black elderberry, wheat grass juice, flaxseed oil, black cohosh, and ginger root. The results were confirmed in a a dose-response study with HSs obtained from three suppliers for the four inhibitory HSs (green tea extract, horehound, St. John's wort, valerian root) and three representative noninhibitory HSs (black cohosh, black elderberry, echinacea). Similar results were obtained with the inhibitory HSs in CHE. The results illustrate that CHIM and CHE represent physiologically relevant in vitro experimental models for the evaluation of drug interaction potential of herbal supplements. Based on the results, green tea extract, horehound, St. John's wort, and valerian root may cause drug interactions with orally administered drugs that are CYP3A substrates, as was observed for grapefruit juice. SIGNIFICANCE STATEMENT: In vitro evaluation of 29 popular herbal supplements in cryopreserved human intestinal mucosa identified green tea extract, horehound, St. John's wort, and valerian

02
CLINICAL STUDY Psychiatria polska (2013) PMID: 23885542 ↗
[Interactions between synthetic drugs used in treatment of selected central nervous system disorders and dietary supplements and herbal drugs].
Clinical Trial Synthesis 2013 Clinical Study published in Psychiatria polska. Key conclusion: Dietary fiber supplementation should be applied carefully during treatment of Parkinson's disease and in case of Alzheimer disease treatment--supplements containing ginkgo biloba leaf can increase the risk of interaction.
View Original PubMed Abstract ↓

The risk of interaction between dietary supplements, herbal drugs and synthetic drugs increases when patients are treated chronically, e.g. due to impairment of central nervous system (CNS)--depression, psychotic disorders, Parkinson's and Alzheimer's diseases. On the basis of scientific literature, there was shown that simultaneous intake of antidepressants, antipsychotic drugs and herbal drugs or dietary supplements containing: St. John's wort, valerian root, ginkgo biloba leaf, hops, and food ingredients: dietary fiber or folic acid, may lead to interactions. Dietary fiber supplementation should be applied carefully during treatment of Parkinson's disease and in case of Alzheimer disease treatment--supplements containing ginkgo biloba leaf can increase the risk of interaction. Knowledge of these interactions is essential in effective treatment of this illness. However this area of science should be verified constantly due to growing number of new products registered as a supplements--often with complex composition.

03
SYSTEMATIC REVIEW Journal of alternative and complementary medicine (New York, N.Y.) (2021) PMID: 34370563 ↗
Dietary Supplement Ingredients for Optimizing Cognitive Performance Among Healthy Adults: A Systematic Review.
Clinical Trial Synthesis 2021 Systematic Review published in Journal of alternative and complementary medicine (New York, N.Y.). Key conclusion: Conclusions: The low level of certainty in the state of the science, coupled with not always knowing what is in a dietary supplement product, make weighing risks and benefits difficult; these data hinder the ability to develop recommendations about using such ingredients for cons
View Original PubMed Abstract ↓

Background: Dietary supplements promoted for brain health and enhanced cognitive performance are widely available. Claims made for these products are directed not only to the elderly wishing to prevent or mitigate cognitive decline, but also young healthy populations looking to boost their cognitive performance. It is unclear whether these claims made on product bottles and through advertising match the science. Objectives: To explore the evidence on the efficacy and safety of single dietary supplement ingredients frequently marketed with claims of enhanced cognitive performance among healthy adults. Design: A systematic review. Results: Nine of 54 dietary supplement ingredients identified through a scoping review met the eligibility criteria with at least 3 published studies identified per ingredient, yielding 69 unique publications. Ingredients evaluated included Bacopa monnieri, choline, creatine, omega-3 fatty acids, Ginkgo biloba, ginseng, Rhodiola rosea, tyrosine, and valerian root, all in supplement form and compared with a placebo, at various serving sizes and durations of use. Conclusions: The low level of certainty in the state of the science, coupled with not always knowing what is in a dietary supplement product, make weighing risks and benefits difficult; these data hinder the ability to develop recommendations about using such ingredients for consumers interested in boosting their cognitive performance. Whereas certain trends regarding promising serving sizes or duration for use, are pointed to in this synthesis, when combined, studies are inconsistent and imprecise, and many are methodologically flawed. Potential solutions to address research gaps are offered, for future research next steps, which is needed to strengthen the evidence and inform decisions.

04
META-ANALYSIS Journal of evidence-based integrative medicine (2020) PMID: 33086877 ↗
Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis.
Clinical Trial Synthesis 2020 Meta-Analysis published in Journal of evidence-based integrative medicine involving n = 6,894 participants. Key conclusion: In conclusion, valerian could be a safe and effective herb to promote sleep and prevent associated disorders.
View Original PubMed Abstract ↓

Sleep problems are widely prevalent and associated with various comorbidities including anxiety. Valerian (Valeriana officinalis L.) is a popular herbal medicine used as a sleep aid, however the outcomes of previous clinical studies are inconsistent. This study was conducted to update and re-evaluate the available data in order to understand the reason behind the inconsistent outcomes and to provide a broader view of the use of valerian for associated disorders. PubMed, ScienceDirect, and Cochrane Library were searched to retrieve publications relevant to the effectiveness of valerian as a treatment of sleep problems and associated disorders. A total of 60 studies (n=6,894) were included in this review, and meta-analyses were performed to evaluate the effectiveness to improve subjective sleep quality (10 studies, n=1,065) and to reduce anxiety (8 studies, n=535). Results suggested that inconsistent outcomes were possibly due to the variable quality of herbal extracts and that more reliable effects could be expected from the whole root/rhizome. In addition, therapeutic benefits could be optimized when it was combined with appropriate herbal partners. There were no severe adverse events associated with valerian intake in subjects aged between 7 and 80 years. In conclusion, valerian could be a safe and effective herb to promote sleep and prevent associated disorders. However, due to the presence of multiple active constituents and relatively unstable nature of some of the active constituents, it may be necessary to revise the quality control processes, including standardization methods and shelf life.

05
RANDOMIZED TRIAL (RCT) Phytotherapy research (2019) PMID: 30632220 ↗
Valerian extract alters functional brain connectivity: A randomized double-blind placebo-controlled trial.
Clinical Trial Synthesis 2019 Randomized Controlled Trial (RCT) published in Phytotherapy research. Key conclusion: The VRE group also exhibited significantly greater decreases in theta coherence across another four electrodes pairs.
View Original PubMed Abstract ↓

Valerian root is the most commonly used herbal supplement for sedation and anxiolysis, but it is unknown whether it may affect functional brain connectivity. Our goal was to use electroencephalography (EEG) to investigate whether valerian root extract (VRE) affects resting-state connectivity changes and whether such changes are associated with clinical symptoms. This 4-week, double-blinded, randomized, placebo-controlled clinical trial was conducted with 64 nonclinical volunteers suffering psychological stress. The participants received VRE (100 mg) or a placebo thrice daily. We examined VRE's therapeutic effects on anxiety and stress-related psychological constructs. Functional brain connectivity changes were measured as EEG coherence in the alpha and theta frequency bands. The VRE and placebo groups both exhibited significant postintervention improvements on all clinical scales, but no significant between-group differences in these changes were noted. Compared with the placebo group, the VRE group exhibited significantly greater increases in frontal brain region alpha coherence across four electrode pairs, and these changes were significantly correlated with anxiolysis. The VRE group also exhibited significantly greater decreases in theta coherence across another four electrodes pairs. Our findings indicate that VRE alters functional brain connectivity in relation to anxiety. Further EEG studies are needed to confirm VRE's neurophysiological effects. © 2019 John Wiley & Sons, Ltd.

06
CLINICAL STUDY Cultural diversity & ethnic minority psychology (2000) PMID: 10975170 ↗
Valerian as a hypnotic for Hispanic patients.
Clinical Trial Synthesis 2000 Clinical Study published in Cultural diversity & ethnic minority psychology involving n = 16 participants; statistical significance reported at p = 0.005. Key conclusion: This case study suggests that valerian can be a supplement for improving insomnia in a symptomatic population.
View Original PubMed Abstract ↓

Valerian is a botanical used for its sedative effects whose central nervous system activity is ascribed to multiple constituents. Twenty-three established outpatient symptomatic Hispanic volunteers receiving mental health services at a large urban hospital participated in this case study. All complained of insufficient sleep. They were asked to try a popular national brand of valerian ("Nature's Way", 470 mg valerian root) and completed sleep questionnaires at baseline and at the end of Weeks 1 and 2. They were instructed to take 1 capsule each night before retiring and were allowed to increase their dose to a maximum of 3 capsules after Week 1. Twenty patients completed the trial. On an ordinal scale of 1 (no effect), 3 (moderately helpful), and 5 (extremely helpful), 16 patients rated their insomnia as at least "moderately improved" at the end of Week 1. By Week 2, 16 still rated themselves at least "moderately improved," but 15 of them now described their response as either a 4 or a 5. Global improvement at Week 2 was significantly better than at Week 1 (Wilcoxon ranks test p = .005), perhaps reflecting a time-dependent or dose-response relationship. This case study suggests that valerian can be a supplement for improving insomnia in a symptomatic population.

07
RANDOMIZED TRIAL (RCT) Journal of the American Nutrition Association (2024) PMID: 37561965 ↗
The Role of Dietary Ingredients in Mental Energy - A Scoping Review of Randomized Controlled Trials.
Clinical Trial Synthesis 2024 Randomized Controlled Trial (RCT) published in Journal of the American Nutrition Association. Key conclusion: The search strategy for two ingredients did not yield any eligible studies, leaving studies for 16 ingredients that were extracted and summarized by reported significantly improved outcomes for cognition, mood and perceived feelings, and sleep assessments.
View Original PubMed Abstract ↓

Low mental energy can contribute to decreased productivity, altered life balance, decreased physical performance, and ultimately affect quality of life. As such, there is a great demand for food and beverage products that positively impact mental energy. Numerous products claim to alter mental energy making continued review of the scientific evidence critical. The objective of this study was to conduct a scoping review of randomized controlled trials to evaluate the effect of 18 dietary ingredients on mental energy outcomes in adults without severe disease. Methods: A literature search, completed using PubMed, resulted in the identification of 2261 articles, 190 of which met eligibility from initial abstract review. Full-text review was completed on the 190 studies which resulted in 101 articles that fully met eligibility for inclusion in this study. The search strategy for two ingredients did not yield any eligible studies, leaving studies for 16 ingredients that were extracted and summarized by reported significantly improved outcomes for cognition, mood and perceived feelings, and sleep assessments. The preliminary results for several dietary ingredients directionally suggested a mental energy benefit (≥20% of outcomes), including ashwagandha, chamomile, dark chocolate, ginseng, green tea, lavender, lion's mane mushroom, maca, tart cherries, turmeric, and valerian root. The results of this scoping review suggest that of the 16 dietary ingredients reviewed, 11 may be promising for further exploration on their potential benefits in supporting mental energy. Given consumer demand and market growth for food and beverage products that positively impact mental energy; continued efforts in assessment method alignment and additional evaluation in well-designed trials is warranted.KEY TEACHING POINTSOf the 16 dietary ingredients reviewed, 11 (ashwagandha, chamomile, dark chocolate, ginseng, green tea, lavender, lion's mane mushroom, maca, melatonin foods, turmeric, and valerian root) may be promising for further exploration on their potential mental energy benefits.Dark chocolate, ginseng, ashwagandha, and lion's mane mushroom were the most promising ingredients for f

08
RANDOMIZED TRIAL (RCT) Chinese journal of integrative medicine (2021) PMID: 33420602 ↗
Efficacy of Valerian Extract on Sleep Quality after Coronary Artery bypass Graft Surgery: A Triple-Blind Randomized Controlled Trial.
Clinical Trial Synthesis 2021 Randomized Controlled Trial (RCT) published in Chinese journal of integrative medicine involving n = 36 participants; statistical significance reported at p = 0.001. Key conclusion: CONCLUSION: The consumption of oral valerian root extract over 30 nights could significantly improve the patients' sleep quality safely after CABG surgery.
View Original PubMed Abstract ↓

OBJECTIVE: To assess the effect of valerian root extract on the sleep quality of patients after coronary artery bypass graft (CABG) surgery. METHODS: The patients who participated in this triple-blind clinical trial were selected by permuted block randomization. The participants were assigned to the valerian (n=36) and placebo (n=36) groups. The valerian group received 530 mg of valerian capsules for 30 nights after CABG surgery, and the placebo group received 530 mg of the placebo capsules containing wheat flour. The Pittsburgh Sleep Quality Index (PSQI), the prothrombin time (PT) and partial thromboplastin time (PTT) were assessed on four occasions, including the baseline, the 3rd, 14th and 30th days following intervention. RESULTS: The odds ratio of worsened sleep quality significantly varied over time (the interaction of time and group) in the valerian group compared to the placebo group in various dimensions including total sleep quality (P=0.001), sleep latency (P<0.01), sleep duration (P=0.020), sleep efficiency (P=0.001) and daytime dysfunction (P=0.025). No significant difference was observed in the alterations of the odds ratio of PT in the two groups over time. (P=0.371). CONCLUSION: The consumption of oral valerian root extract over 30 nights could significantly improve the patients' sleep quality safely after CABG surgery.

09
RANDOMIZED TRIAL (RCT) Psychopharmacology (2015) PMID: 25173770 ↗
Can Valeriana officinalis root extract prevent early postoperative cognitive dysfunction after CABG surgery? A randomized, double-blind, placebo-controlled trial.
Clinical Trial Synthesis 2015 Randomized Controlled Trial (RCT) published in Psychopharmacology involving n = 61 participants (OR 0.108). Key conclusion: CONCLUSION: We concluded that, based on this study, the cognitive state of patients in the valerian group was better than that in the placebo group after CABG; therefore, it seems that the use of V.
View Original PubMed Abstract ↓

RATIONALE: We hypothesized that valerian root might prevent cognitive dysfunction in coronary artery bypass graft (CABG) surgery patients through stimulating serotonin receptors and anti-inflammatory activity. OBJECTIVES: The aim of this study was to evaluate the effect of Valeriana officinalis root extract on prevention of early postoperative cognitive dysfunction after on-pump CABG surgery. METHODS: In a randomized, double-blind, placebo-controlled trial, 61 patients, aged between 30 and 70 years, scheduled for elective CABG surgery using cardiopulmonary bypass (CPB), were recruited into the study. Patients were randomly divided into two groups who received either one valerian capsule containing 530 mg of valerian root extract (1,060 mg/daily) or placebo capsule each 12 h for 8 weeks, respectively. For all patients, cognitive brain function was evaluated before the surgery and at 10-day and 2-month follow-up by Mini Mental State Examination (MMSE) test. RESULTS: Mean MMSE score decreased from 27.03 ± 2.02 in the preoperative period to 26.52 ± 1.82 at the 10th day and then increased to 27.45 ± 1.36 at the 60th day in the valerian group. Conversely, its variation was reduced significantly after 60 days in the placebo group, 27.37 ± 1.87 at the baseline to 24 ± 1.91 at the 10th day, and consequently slightly increased to 24.83 ± 1.66 at the 60th day. Valerian prophylaxis reduced odds of cognitive dysfunction compared to placebo group (OR = 0.108, 95 % CI 0.022-0.545). CONCLUSION: We concluded that, based on this study, the cognitive state of patients in the valerian group was better than that in the placebo group after CABG; therefore, it seems that the use of V. officinalis root extract may prevent early postoperative cognitive dysfunction after on-pump CABG surgery.

10
RANDOMIZED TRIAL (RCT) Journal of complementary & integrative medicine (2011) PMID: 22718671 ↗
Extract of valerian root (Valeriana officinalis L.) vs. placebo in treatment of obsessive-compulsive disorder: a randomized double-blind study.
Clinical Trial Synthesis 2011 Randomized Controlled Trial (RCT) published in Journal of complementary & integrative medicine; statistical significance reported at p = 0. Key conclusion: There was also no significant difference between the two groups in terms of observed side effects.
View Original PubMed Abstract ↓

OBJECTIVE: Obsessive-Compulsive Disorder (OCD) is a common neuropsychiatric condition. Many herbs with psychotropic effects exist which can have fewer side effects compared to more conventional medications. Valeriana Officinalis L. is a well-known medicinal plant with a long history of usage in the world with an effect on GABA. This plant is reported to be safe on humans. Our objective in this study was to compare the efficacy of the extract of Valeriana Officinalis L. with placebo in the treatment of OCD. METHODS: The study was an 8-week pilot double-blind randomized trial. Thirty-one adult outpatients who met the DSM-IV-TR criteria for OCD based on the structured clinical interview participated in the trial. In this double-blind and randomized trial, patients were randomly assigned to receive either capsule of the extract (765 mg/day) or placebo (30 mg/day) for 8 weeks. RESULTS: The results showed significant difference between the extract and placebo in the end of treatment (P=0.000). Somnolence was the only significant difference between the two groups in terms of observed side effects (P=0.02). CONCLUSION: The results suggest that Valeriana Officinalis L. has some antiobsessive and compulsive effects. However, further studies are needed to confirm these findings. Psychiatrists often find that many patients cannot tolerate the side effects of psychiatry medicine Valeriana Officinalis L. is a well-known medicinal plant with a long history of usage in world with effect on GABA.The results showed significant difference between the extract and placebo in the treatment of OCD. There was also no significant difference between the two groups in terms of observed side effects.

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