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PubMed · Piper auritum ethanol extract is a potent antimutagen against food-borne aromatic amines: mechanisms of action and chemical composition. (2024)
PubMed · A systematic review of botany, phytochemicals and pharmacological properties of "<i>Hoja sant</i> <i>a</i>" (<i>Piper auritum</i> Kunth). (2021)
Reviewed by: HerbAlly Editorial Team, Medical herbalists and healthcare professionals
Hierba Santa contains trans-anethole and eugenol, which act as carminatives to relieve digestive discomfort. These volatile oils help relax smooth muscle in the gastrointestinal tract, reducing spasms and promoting gas expulsion. The essential oils also stimulate digestive secretions. This mechanism is based on traditional use and pharmacological understanding of similar aromatic compounds (Evidence Level C).
Is Hierba Santa safe during pregnancy?
Hierba Santa is considered unsafe during pregnancy due to its safrole content, which has demonstrated carcinogenic potential in animal studies. Safrole may also stimulate uterine contractions. Pregnant women should avoid medicinal doses entirely. Small culinary amounts as food wrapping may be acceptable, but caution is advised. Consult a qualified healthcare provider before use (Evidence Level C).
What is the recommended dosage for Hierba Santa tea?
For medicinal tea, traditional use suggests 1-2 fresh leaves steeped in hot water, taken once daily. For culinary purposes, fresh leaves can be used freely as food wrappers for tamales and fish. Due to safrole content, prolonged or high-dose internal use is not recommended. Consult a qualified herbalist for personalized guidance, as safety data is limited (Evidence Level C, Traditional).
Does Hierba Santa interact with medications?
Hierba Santa contains safrole, which may affect liver enzymes responsible for drug metabolism. This could potentially alter the effectiveness of medications processed by the liver, including blood thinners, diabetes medications, and certain antidepressants. Due to limited research on specific interactions, individuals taking prescription medications should consult a healthcare provider before using Hierba Santa medicinally (Evidence Level C).
What are the side effects of Hierba Santa?
The primary concern with Hierba Santa is its safrole content, which has shown carcinogenic potential in animal studies with prolonged, high-dose exposure. Other potential side effects include allergic reactions in sensitive individuals. People with liver disease should avoid medicinal use due to safrole's hepatic effects. Moderate culinary use as a food wrapper is generally considered safe (Evidence Level C).
What is Hierba Santa used for in Mexican traditional medicine?
Hierba Santa is traditionally used in Mexican and Central American folk medicine for digestive complaints, respiratory infections, and post-partum recovery. The large aromatic leaves serve as carminatives to relieve gas and bloating. Culinary uses include wrapping tamales and fish for flavor. The characteristic anise-like flavor comes from trans-anethole and other essential oils present in the leaves (Evidence Level C, Traditional).
PubMed-compiled information sheet
This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 30 PubMed articles · model: gemma4:31b
Summary
Piper auritum, known as Hoja Santa or Hierba Santa, is a Mexican endemic plant used in cuisine and traditional medicine for its antioxidant, antidiabetic, and antimicrobial properties [PMID:32960783, PMID:38409305].
Background
Piper auritum Kunth is a large-leafed perennial plant endemic to Mexico and Central America [PMID:24082635, PMID:40137130]. It is characterized by a greenish stem without spots and is often used as a fresh vegetable or condiment in Mexican gastronomy [PMID:39353875, PMID:36417317].
Traditional uses
Traditionally used as an aphrodisiac [PMID:30545804], for treating diabetes [PMID:28704049], and as a general remedy in Mexican and Panamanian traditional medicine for various ailments [PMID:32960783, PMID:29428241].
Active compounds
Phytochemical analysis reveals the presence of safrole (a major component), alpha-copaene, caryophyllene, beta-pinene, gamma-terpinene, and pentadecane [PMID:38520343]. Other identified compounds include benzoic acid derivatives, phenylpropanoids, triterpenoids, triterpene saponins, and nutraceuticals such as trigonelline, myo-inositol, betaine, and choline [PMID:32960783, PMID:36417317, PMID:30263262].
Mechanism of action
Antimutagenic effects are attributed to the inhibition of Cytochrome P450 (CYP1A1) activity and direct interaction between plant components and mutagens [PMID:38520343, PMID:40137130]. Antidiabetic effects involve the inhibition of alpha-amylase and alpha-glucosidase, as well as the reduction of oxidative stress by increasing antioxidant enzymes such as SOD, CAT, GPx, and GSH [PMID:30263262, PMID:24082635].
Clinical evidence
Evidence DDiabetes/Hyperglycemia
Hexane extract significantly reduced blood glucose, serum cholesterol, and triglycerides while increasing HDL-cholesterol and antioxidant enzyme levels in STZ-induced diabetic rats [PMID:24082635, PMID:25141815].
Evidence DSexual Performance
Aqueous extract stimulated ejaculatory behavior and recovered sexual performance in sluggish male rats [PMID:30545804].
Evidence DMutagenesis
Ethanol extract demonstrated significant antimutagenic effects against food-borne aromatic amines and benzo[a]pyrene in Salmonella typhimurium strains [PMID:38520343, PMID:40137130].
Evidence DSnakebite Envenomation
Ethanolic extract neutralized the edematic and coagulant effects caused by Bothrops rhombeatus venom [PMID:31279070].
Evidence DOxidative Stress/Glycation
Hexane extract showed high antioxidant activity and inhibited the formation of advanced glycation end-products (AGEs) in vitro and in diabetic rat models [PMID:23047487, PMID:25141815].
Safety & adverse effects
No specific adverse effects are detailed, though it is noted that some components like safrole are present [PMID:32960783, PMID:38520343].
Pregnancy & lactation
Piper auritum (referred to as anison) is reported as one of the most frequently ingested medicinal plants by pregnant women in primary care, often without medical indication, despite general warnings that some medicinal plants may have abortive or teratogenic potential [PMID:20141666].
Evidence summary
The current evidence is primarily based on in vitro studies and animal models (rats/mice), indicating strong potential for antidiabetic, antioxidant, and antimutagenic activities; however, there are no human clinical trials provided in the source material.
PubMed sources
1.PMID: 38409305 (2024) — Biogenic Ag2O nanoparticles with "Hoja Santa" (Piper auritum) extract: characterization and biological capabilities. · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine
2.PMID: 32960783 (2021) — A systematic review of botany, phytochemicals and pharmacological properties of "Hoja sant a" (Piper auritum Kunth). · Zeitschrift fur Naturforschung. C, Journal of biosciences
3.PMID: 36417317 (2022) — 1 H-NMR Metabolomics Profiling and Volatile Content of 'Hoja Santa' (Piper auritum Kunth): A Millenary Edible Plant Consumed in Mexico. · Chemistry & biodiversity
4.PMID: 38520343 (2024) — Piper auritum ethanol extract is a potent antimutagen against food-borne aromatic amines: mechanisms of action and chemical composition. · Mutagenesis
No direct government monograph is available for this herb. The content below is AI-generated and has not been verified against an authoritative government source. Use the search links to check official sources before relying on this information.
— Total phenolics and antioxidant activity of Piper auritum and Porophyllum ruderale.
· Food chemistry
6.PMID: 30545804 (2019) — Piper auritum Kunth (Piperaceae) improves the sexual performance of sluggish male rats through enhancing ejaculation. · Journal of ethnopharmacology
7.PMID: 40137130 (2025) — Studies of Piper auritum Kuntz's Mutagenic and Antimutagenic Properties Using the Ames Test. · Metabolites
8.PMID: 30959974 (2019) — Piper Species: A Comprehensive Review on Their Phytochemistry, Biological Activities and Applications. · Molecules (Basel, Switzerland)
9.PMID: 24082635 (2012) — Effect of the hexane extract of Piper auritum on insulin release from β-cell and oxidative stress in streptozotocin-induced diabetic rat. · Pharmacognosy magazine
10.PMID: 41154079 (2025) — Abiotic Stress Alters the Nutritional, Metabolomic, and Glycomic Profiles of Piper auritum Kunth. · Foods (Basel, Switzerland)
11.PMID: 28704049 (2017) — Phylogenomics of 2,4-Diacetylphloroglucinol-Producing Pseudomonas and Novel Antiglycation Endophytes from Piper auritum. · Journal of natural products
12.PMID: 25141815 (2014) — Antidiabetic activity of Piper auritum leaves in streptozotocin-induced diabetic rat, beneficial effect on advanced glycation endproduct. · Chinese journal of integrative medicine
13.PMID: 31279070 (2019) — Edematic and coagulant effects caused by the venom of Bothrops rhombeatus neutralized by the ethanolic extract of Piper auritum. · Journal of ethnopharmacology
14.PMID: 39353875 (2024) — Utilization of Advanced Microscopy Techniques and Energy-dispersive X-ray Spectroscopy to Characterize Three Piper Species Related to Kava. · Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada
15.PMID: 29428241 (2018) — Ethnomedical uses and pharmacological activities of most prevalent species of genus Piper in Panama: A review. · Journal of ethnopharmacology
16.PMID: 27695268 (2016) — Anti-Advanced Glycation End-product and Free Radical Scavenging Activity of Plants from the Yucatecan Flora. · Pharmacognosy research
17.PMID: 23047487 (2012) — Evaluation of the antioxidant and anti-glication effects of the hexane extract from Piper auritum leaves in vitro and beneficial activity on oxidative stress and advanced glycation end-product-mediated renal injury in streptozotocin-treated diabetic rats. · Molecules (Basel, Switzerland)
18.PMID: 40482065 (2025) — Piper auritum (Kunth) Fungal Endophytes: A Source of Metabolites to Inhibit the Formation of Advanced Glycation End Products. · Chemistry & biodiversity
19.PMID: 42108661 (2026) — Antifungal Potential of Essential Oils From Native Mexican Species: Chemical Composition and In Vitro Vapor-Phase Analyses. · Chemistry & biodiversity
20.PMID: 30263262 (2016) — Antidiabetic andantioxidant properties, and α-amylase and α-glucosidase inhibition effects of triterpene saponins from Piper auritum. · Food science and biotechnology
21.PMID: 40266814 (2025) — Insecticidal and Repellent Activity of Plant Powders on the Weevil (Sitophilus zeamais) in Stored Corn Grains in a Rural Community of Oaxaca, Mexico. · Insects
22.PMID: 20141666 (2009) — [Use of medicinal plants during pregnancy]. · Revista medica del Instituto Mexicano del Seguro Social