Related Compounds
Compounds connected by the same goals, effects, or research topics.
Compound Profile
Willow Bark Extract
Willow Bark Extract carries a Grade B rating — moderate evidence.
Use extra caution — Avoid with aspirin allergy, anticoagulants, peptic ulcer disease, children/teens with viral illness, and late pregnancy. Details
Last reviewed: •1 source citedReport a correctionProfile-wide ·B Moderate
At a glance
From this profile's structured data- Evidence
- Grade B
- Safety
- Avoid with aspirin allergy, anticoagulants, peptic ulcer disease, children/teens with viral illness, and late pregnancy.
- Profile context
- Inflammation, Oxidative Stress, Stress Response
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Quick stats
- Evidence level
- Moderate evidence
- Typical onset
- Varies by prep
- Safety rating
- Use extra caution: Use caution
- Best for
- Inflammation, Oxidative Stress, Stress Response
- Avoid / review if
- Bleeding Disorders Or Anticoagulant Or Antiplatelet Therapy Without Clinician Review, Active GI Ulcer Or Reflux Disease, Asthma With Known Aspirin Or NSAID Sensitivity
Botanical Context
Source botanicals and comparison guides related to Willow Bark Extract.
Safety
Safety & Cautions
Avoid with aspirin allergy, anticoagulants, peptic ulcer disease, children/teens with viral illness, and late pregnancy.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Anticoagulant CautionBleeding or anticoagulant-adjacent caution language is present.
- Pregnancy/Breastfeeding CautionPregnancy or breastfeeding caution language is present.
Evidence-based safety
Caution when combined
Severity and certainty are shown separately. A high-priority caution can still be theoretical: these pairings are screened from shared contraindication mechanisms and are not automatically documented clinical interactions. Provenance identifies the source fields that produced each flag; it does not upgrade the certainty of the pairwise claim.
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
Representative pairings are shown below. Large mechanism groups are intentionally summarized to keep profiles focused and crawl-efficient.
Bleeding / anticoagulant riskCertainty: Theoretical
Data provenance recorded for 147 of 147 pairings in this mechanism group.
- aescin — Theoretical interaction certainty
- Aged Garlic Extract — Theoretical interaction certainty
- ajoene — Theoretical interaction certainty
- Ajwain — Theoretical interaction certainty
- Allicin — Theoretical interaction certainty
- Garlic — Theoretical interaction certainty
- American Ginseng Extract — Theoretical interaction certainty
- Andrographis — Theoretical interaction certainty
- Angelica Archangelica — Theoretical interaction certainty
- Angelica Dahurica — Theoretical interaction certainty
- Angelica Pubescens — Theoretical interaction certainty
- Angelica Root — Theoretical interaction certainty
+135 more pairings share this mechanism. Use the Safety Checker to review a specific combination.
Evidence Summary
Profile-wide ·B ModerateEvidence lens
Useful signal, but study design, dose, and population still matter.
ModerateModerate evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation
Research maturity: Established research — main contexts: Inflammation · Oxidative Stress · Stress Response
Safety boundary: Safety note available — Avoid with aspirin allergy, anticoagulants, peptic ulcer disease, children/teens with viral illness, and late pregnancy.
This profile cites 1 human study.
Evidence Strength
Confidence estimate based on the design quality and consistency of published clinical trials.
Willow Bark Extract has a moderate evidence rating.
AdaptogenStress & MoodLongevity
Citation density
0.3
Sources
1
Effects
3
Research recency
Mixed recency
Evidence Grade
Grade B: Moderate Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Randomized controlled trial
- Risk of Bias
- Low
- Consistency
- Not assessed
Strongest recorded design is a randomized controlled trial, drawn from 2 recorded studies, 2 in people.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (1)1 human evidence source · 1 human trial · ~114 participants across 1 human evidence source with reported N · Consistency not yet classifiable
What the evidence actually shows
This table contains 1 structured source, including 1 human evidence source; 1 is a human trial. Across 1 human evidence source with a reported sample size, the approximate participant total is 114; overlapping publications may include some of the same people. Source-to-conclusion relationships are not classified in this structured set, so consistency is not yet classifiable.
Profile-wide evidence grade: see the profile grade above · Confidence: not separately assigned
What would change our conclusion?
Larger, well-controlled human trials using comparable populations, doses, preparations, and clinically meaningful outcomes could materially strengthen or weaken this conclusion. Replication in a different population or a high-quality synthesis resolving current disagreement could also materially change confidence.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
PubMed · Rheumatology (Oxford) · 2001 Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | n=114 | — | — | — | — | — | PubMed → |
How Willow Bark Extract Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Willow Bark Extract Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Dosing
- No standardized dose
- No standardized dose is established for this ingredient in our source data. Preparations differ widely, so follow the standardization on the product you actually have and speak to a clinician before starting.
Mechanisms & biological pathways
Preclinical mechanism details from scientific profiles; these represent plausible pathways but do not guarantee clinical efficacy in humans.
- Inflammatory Signaling Modulation
Guides that use Willow Bark Extract
Condition guides
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Related research paths
Related Herbs
Botanicals connected by the same goals, effects, or research topics.
Related Guides
Deeper context, comparisons, and practical research paths.
Related Safety Pages
Safety checks and cautions relevant to this decision.
Related Articles
Deeper context, comparisons, and practical research paths.
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Willow Bark Extract
Independent database mapping — evaluated separately from safety and efficacy scores.
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Related alternatives
Herbs for similar conditions
Tradeoffs
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Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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Compound profile context
How to interpret Willow Bark Extract
Willow Bark Extract compound profile with evidence context, key research topics, source notes, safety context, and references presented in an… Use this compound profile to understand mechanism, evidence quality, and practical safety context before comparing products or building a stack. A biochemical pathway connection can be useful for discovery, but it is not the same as proven benefit in humans.
When reviewing Willow Bark Extract, separate the active molecule from the product category around it. Dose form, absorption, extract standardization, medication interactions, and individual sensitivity can change the real-world risk-benefit picture.
For supplement planning, avoid combining multiple compounds with overlapping sedating, stimulating, serotonergic, blood-pressure, anticoagulant, or liver-metabolism effects unless a qualified clinician has reviewed the context.