Pippali

Names and identification

Language	Name
English	Pippali
Common Names	Long Pepper, Indian Long Pepper
Hindi	Pippal, Pippali
Sanskrit	Pippali, Magadhi
Latin/Botanical	Piper longum

Parts Used

• Fruit
• Root

Dosha Effects

Dosha	Effect
Vata	Decreases
Kapha	Decreases
Pitta	Increases

Key Phytochemical Constituents

• Piperine
• Piperlongumine
• Pipernonaline
• Sesamin
• Piperlonguminine

Therapeutic Actions (Karma)

• Bioavailability enhancer
• Bronchodilator
• Digestive stimulant
• Immunomodulator
• Hepatoprotective
• Rejuvenative

How does it work?

• Piperine inhibits CYP450 enzymes (especially CYP3A4) and UDP-glucuronosyltransferase, reducing first-pass metabolism and enhancing bioavailability of co-administered compounds.
• Piperine directly activates TRPV1 (capsaicin receptor) by binding to the capsaicin-binding pocket but in different poses than capsaicin, making it a weak agonist with distinct structural mechanism.
• Piperine interacts with T671 on the pore-forming S6 segment of TRPV1 to induce channel opening.
• Piperlongumine (from Piper longum) acts as a senolytic agent: selectively kills senescent cells by targeting OXR1 (Oxidation Resistance 1), binding directly and inducing its degradation via the ubiquitin-proteasome system in a senescent cell-specific manner.
• Piperlongumine acts as allosteric antagonist of TRPV2 channel, impairing glioblastoma cell survival.
• Piperlongumine induces apoptosis in senescent cells without requiring reactive oxygen species induction.
• Piperine inhibits P-glycoprotein efflux transporter, further enhancing intestinal drug absorption.

How is it used traditionally?

Component of Trikatu. Unique in Ayurveda for Rasayana through Vardhamana (graduated dosing). Enhances bioavailability of other herbs. Used for Shwasa (asthma), Kasa (cough), and Agnimandya (weak digestion).

Where is it described in the classical texts?

• Charaka Samhita (Deepaniya group)
• Sushruta Samhita
• Bhavaprakasha Nighantu

What do recent studies show?

• Shah SB, Guttal GK, Chikkanna U and others 2022. Efficacy of Pippali in vardhamana and fixed dosage pattern in primary hypothyroidism - A randomized clinical trial. Journal of Ayurveda and integrative medicine. PMID 35661936 · doi:10.1016/j.jaim.2022.100555
  Published in J Ayurveda Integr Med, this RCT evaluated Pippali in graduated (vardhamana) versus fixed dosage patterns for primary hypothyroidism management.
• Bailey HH, Johnson JJ, Lozar T and others 2021. A randomized, double-blind, dose-ranging, pilot trial of piperine with resveratrol on the effects on serum levels of resveratrol. European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP). PMID 32868637 · doi:10.1097/CEJ.0000000000000621
  Published in Eur J Cancer Prev, evaluated the effects of piperine on resveratrol serum levels in a dose-ranging clinical trial.
• Biswas P, Ghorai M, Mishra T and others 2022. Piper longum L.: A comprehensive review on traditional uses, phytochemistry, pharmacology, and health-promoting activities. Phytotherapy research : PTR. PMID 36256521 · doi:10.1002/ptr.7649
  Comprehensive review cataloguing analgesic, carminative, anti-diarrhoeic, immunostimulant properties and applications in asthma, insomnia, dementia, epilepsy, diabetes, and rheumatoid arthritis.
• Conde J, Pumroy RA, Baker C and others 2021. Allosteric Antagonist Modulation of TRPV2 by Piperlongumine Impairs Glioblastoma Progression. ACS central science. PMID 34079902 · doi:10.1021/acscentsci.1c00070
  Piperlongumine binds to a transient allosteric pocket on hTRPV2, demonstrating a new mode of anticancer activity against glioblastoma where TRPV2 is overexpressed.

Only studies that could be traced to a published paper are listed here. An absence here means we could not identify the source, not that no work exists.

Recent safety updates

• Piperine inhibits CYP3A4 and increases AUC of multiple drugs: simvastatin (+59%), alfentanil (+39%), triazolam (+36%), cyclosporine (+35%), nifedipine (+34%), ritonavir (+31%), itraconazole (+24%), midazolam (+20%), clarithromycin (+17%), carbamazepine (+11%).
• Piperine may inhibit P-glycoprotein (PGP), increasing fexofenadine bioavailability.
• Interactions in humans observed at bolus doses of 20 mg piperine/day; doses as low as 5 mg/day may cause interactions with certain substances.
• Dose-dependent toxicity concerns: poor water solubility limits safe high-dose administration.
• Animal studies indicate disturbance of spermatogenesis at higher piperine bolus doses.
• Animal studies show maternal reproductive and embryotoxic effects at higher doses.
• Hepatic concerns at high doses in animal models.
• As a potent bioavailability enhancer, any co-administered medication dosing should be reviewed - piperine can significantly alter pharmacokinetics of co-administered drugs.

Recommended Dosage

Fruit powder: as given under Standard Dosage below; Vardhamana Pippali (graduated dosing): as per classical protocol

Safety, contraindications and cautions

• Pitta disorders
• Gastritis/ulcers
• Pregnancy
• May enhance drug absorption (interaction concern)

What is it made of?

Part(s) Analyzed: Fruit, Root

Alkaloids (Piperidine)

• Piperine (4-9%)
• Piperlongumine
• Piperlonguminine
• Pipernonaline
• Retrofractamide A-C

Lignans

• Sesamin
• Pluviatilol

Volatile Compounds

• Caryophyllene
• Pentadecane

Essential Oil Composition

• Caryophyllene: 18-25%
• Pentadecane: 8-12%
• Bisabolene: 5-8%
• Thujene: 3-5%
• Terpinolene: 2-4%

Dosage forms and preparation

Dosage Forms: Churna (powder), Capsule, Tablet, Avaleha (confection), Ghrita (medicated ghee), Rasayana formulation, Vardhamana Pippali (graduated dose protocol), Honey-based preparation

Standard Dosage: 250-500 mg powder 1-3 times daily; 125-500 mg standardized extract twice daily; Vardhamana protocol: start 1 fruit, increase by 1 daily to 10, then taper

Optimal Timing: Before meals with honey for respiratory conditions. With meals or after meals for digestive purposes. As bioenhancer: taken simultaneously with the compound being enhanced.

Storage: Dried fruit and powder: airtight containers, below 25 deg C, RH <55%, protected from light (piperine photodegradation). Piperine isolate: amber glass, desiccated, 2-25 deg C. Ghrita: clean, dry containers, below 30 deg C.

Marker Compounds: Piperine, Piperlongumine, Piperlonguminine, Pipernonaline, Retrofractamide A, Pellitorine, Sesamin, Beta-sitosterol

Synergistic Combinations

• Haridra/Curcumin (20-fold bioavailability enhancement)
• Ashwagandha (Rasayana combination with enhanced withanolide absorption)
• Trikatu combination (Pippali + Maricha + Shunthi for digestive fire)
• Sitopaladi Churna (respiratory health formulation)
• Chyawanprash (key ingredient in classical Rasayana)