Herb Profile
Piper Longum
Botanical profile with evidence, safety, and practical fit.
Last reviewed: •3 human studies cited
C PreliminaryUse extra caution — Concentrated extracts may alter drug exposure and irritate GI mucosa. Details
- Evidence
- Strong Human Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Bioavailability Enhancer, Digestive Support, Respiratory, Stress
- Avoid / review if
- Pregnancy/Breastfeeding Caution, Significant Reflux/Ulcer Disease, And Prescription Polypharmacy Without Supervision.
Monograph visual
Piper Longum
Generated profile category visual
Where to go next — guides & comparisons
Continue reading
- If you want to browse more herbs → All herbs
Safety & Cautions
Concentrated extracts may alter drug exposure and irritate GI mucosa. Distinguish traditional culinary/low dose use from high piperine formulations.
28%
High caution — review carefully
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- - Pregnancy/Breastfeeding Caution
- - Significant Reflux/Ulcer Disease
- - And Prescription Polypharmacy Without Supervision.
- - Potential Interactions With CYP/P Gp Substrates
- - Anticoagulants
- - Antiepileptics
- - Immunosuppressants
- - And Other High Bioavailability Supplement Blends.
Safety classifications
- - Interaction-Aware: Medication or interaction context is explicitly noted.
- - Pregnancy/Breastfeeding Caution: Pregnancy or breastfeeding caution language is present.
Full safety note
- - Concentrated extracts may alter drug exposure and irritate GI mucosa. Distinguish traditional culinary/low dose use from high piperine formulations.
Safety labels
- - Interaction-Aware
- - Pregnancy/Breastfeeding Caution
Evidence-based safety
Caution when combined
These pairings share a flagged risk mechanism. They are additive-effect cautions derived from contraindication data, not confirmed clinical interactions. Consult a clinician before combining.
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
High-Priority Caution
147 flagged pairingsBleeding / anticoagulant risk
Browse the grouped cautions below. The list scrolls inside this card when long.
Bleeding / anticoagulant risk
- aescin
- Aged Garlic Extract
- ajoene
- Ajwain
- Allicin
- Garlic
- American Ginseng Extract
- Andrographis
- Angelica Archangelica
- Angelica Dahurica
- Angelica Pubescens
- Angelica Root
- Angelica Sinensis
- Arjuna
- Artemisia Capillaris
- Artichoke
- Ashitaba
- Ashitaba Extract
- Astaxanthin
- Berberis
- Black Seed
- Black Seed Oil
- Blueberry
- Boldo
- Boswellia
- Capsicum
- Caraway
- Carnitine L Tartrate
- Cayenne
- Chamomile
- Chinese Skullcap
- Chuanxiong
- Cissus
- Citicoline
- Clove
- Cnidium Monnieri
- Coleus Forskohlii
- Commiphora Mukul
- Coenzyme Q10
- Cordyceps
- Cranberry (Vaccinium macrocarpon)
- crocetin
- crocin
- cryptotanshinone
- Curcuma Wenyujin
- Curcumin
- Damiana
- Danshen
- Devils Claw Extract
- Dong Quai
- EGCG
- Epimedium
- Epimedium Brevicornum
- Evening Primrose (Oenothera biennis)
- Fenugreek
- Fenugreek Extract
- ferulic acid
- Feverfew
- Fisetin
- forskolin
- Fraxinus Rhynchophylla
- Fucoxanthin
- Galangal
- Reishi
- Garcinia Mangostana
- Garlic (Allium sativum)
- Garlic Aged Extract
- Garlic Extract
- Ginger (Zingiber officinale)
- Ginkgo
- Ginkgo Biloba Extract
- Ginkgo Extract EGb 761
- Panax Red Ginseng
- Panax White Ginseng
- ginsenoside rg3
- Glucosamine
- Goldenseal
- Lion's Mane
- Holy Basil / Tulsi (Ocimum tenuiflorum)
- Horse Chestnut
- hydroxytyrosol
- Japanese Knotweed
- Kudzu
- L-Carnitine
- Ligusticum Chuanxiong
- Magnolia
- Mangosteen
- Maral Root
- Chamomile
- Melatonin
- MSM
- Myrtle
- Nettle Root
- Nigella Sativa
- Noni
- Notoginseng
- Ocimum Basilicum
- Olive Leaf Extract
- Oregano
- Paeonia Lactiflora
- Asian Ginseng
- Panax Ginseng Extract
- Papaya Leaf
- Pastinaca Sativa
- Pau D'arco
- Perilla
- Phosphatidylserine
- Bifidobacterium Probiotic
- Lactobacillus Probiotic
- Probiotics - Bifidobacterium spp.
- Probiotics - Lactobacillus spp.
- Psoralea Corylifolia
- Pycnogenol
- Quercetin
- Quercetin Phytosome
- Red Clover
- Reishi (Ganoderma lucidum)
- Resveratrol
- Rhodiola Extract SHR-5
- Rose Hips
- Rosemary
- Saffron
- Saffron Extract
- Salvia miltiorrhiza
- Saw Palmetto (Serenoa repens)
- Saw Palmetto Extract
- Schisandra Berry
- Schisandra Chinensis
- Scutellaria Baicalensis
- Selaginella Tamariscina
- Soybean
- Syzygium Aromaticum
- Terminalia arjuna
- Thunder God Vine
- Thyme
- Tongkat Ali
- Trans-Resveratrol
- Fenugreek
- Tripterygium Wilfordii
- Turmeric (Curcuma longa)
- Turmeric Curcumin + Piperine
- Valerian
- Vitamin D3 + K2
- Grape
- White Peony
- Willow Bark Extract
- Yarrow
Evidence Summary
Evidence lens
Most useful for practical interpretation when safety context also fits.
StrongStrong Human Evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Oxidative Stress Modulation · Stress Response Modulation · NF KB Modulation
Research maturity: Preliminary or mixed — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — Concentrated extracts may alter drug exposure and irritate GI mucosa.
This profile cites 3 human studies.
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.
A
Strong
Multiple RCTs, consistent direction, adequate effect size
B
Moderate
Some RCTs or consistent observational data in humans
C
Preliminary / Mixed
Animal or in-vitro only, or conflicting human data
D
Traditional / Theoretical
Traditional use only; no controlled human trials
Dosing & Timing
Dose guidance
Preparation specific; use standardized product label for Evidence is strongest for piperine containing extracts rather than all long pepper preparations. and require source backed dosage review before therapeutic claims.
How Piper Longum Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Piper Longum Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & Biological Pathways
Preclinical pathways
Proposed mechanisms from in vitro and animal research; these do not confirm clinical outcomes in humans.
Oxidative Stress ModulationStress Response ModulationNF KB Modulation
Active Compounds
Key constituents studied in Piper Longum, with full pharmacology and safety profiles.
Condition guides
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Piper Longum
Independent database mapping — evaluated separately from safety and efficacy scores.
Affiliate Disclosure: Shopping links may earn this site a commission at no cost to you. Links are chosen on quality and availability, never commission tiers; safety warnings and evidence ratings stay independent.
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.
Free safety checklist
Get the Piper Longum research notes
Evidence summaries, dosing context, and safety updates for this herb — straight to your inbox.
We use your email to send the checklist and occasional evidence-first supplement updates. Unsubscribe anytime. Privacy policy.
Botanical profile context
How to interpret Piper Longum
Piper Longum dosage ranges, effects, drug interactions, and harm-reduction safety guide for bioavailability enhancer. Strong Human Evidence research evidence. Use this herb profile as a starting point for evidence review, not as a recommendation to start a new supplement. Botanical products can vary by plant part, extract ratio, standardization, dose, and contaminant testing, so two labels with the same common name may not behave the same way.
When reviewing Piper Longum, compare the traditional-use context against the human evidence, mechanism notes, and safety cautions. Pay special attention to pregnancy, breastfeeding, liver or kidney disease, blood-pressure effects, sedation, stimulation, anticoagulant use, antidepressants, and any prescription medication overlap.
For product decisions, prefer transparent labels, named extracts, clear serving sizes, and third-party quality testing. Avoid treating a long list of possible mechanisms as proof that an herb will solve a specific condition.