Ingredients

Plantain

Health Conditions44

Table of contents

Other Names

AnténAshvagolaBabka lancetowataBabka zwyczajnaBarhangBlack psylliumBlond psylliumBreitwegerichBroad-leaved plantainBroadleaf plantainBuckhornBuckhorn plantainCancerinaCart Track PlantCommon plantainCuckoo's breadDesert Indian wheatDianténDoorweedDooryard plantainEnglish plantainEnglishman's-footFlea seedFrench psylliumGrand plantainGreat plantainGreater plantainGrobladHealing bladeHen plantIndian plantagoIndian plantainIsabgolIsabgolaIsabgoluIsabgulIsappagalaIsappukolIskolviraiIspaghalIspaghulIspaghulaIsphagulaLamb's footLanceleaf plantainLanténLesan-ol-hamlLlanténLlantén comúnLlantén majorLlantén mayorNarrow-leaf plantainPetit plantainPlantagoPlantago arenariaPlantago asiaticaPlantago fastigiataPlantago halophilaPlantago indicaPlantago insularisPlantago intermediaPlantago ispaghulaPlantago lanceolataPlantago majorPlantago major L.Plantago major subsp. majorPlantago major var. asiaticaPlantago major var. intermediaPlantago major var. pachyphyllaPlantago major var. pilgeriPlantago major var. scopulorumPlantago ovataPlantago ovata Forssk.Plantago psylliumPlantain herbPlantain majeurPsylliumPsyllium huskPsyllium seedRibble grassRibgrassRibwortRibwort plantainRipple grassRippleseed plantainRoadweedRoundelay plantainRoundleaf plantainSlan-lusSnake plantainSnake-plantSnakeweedSnigdhajiraSoldier's herbSpanish psylliumSpitzwegerichSpogel seedsTanchagem-maiorTanchagem-menorWaybreadWaybroadWayside plantainWeybroedWhite man's footWhite man's footprintWhite man's footstepWhiteman's-foot

Synopsis

Plantain (Plantago major L.): A Comprehensive Reference

1. Identity, Nomenclature, and Natural Source

Plantago major is a perennial medicinal plant which belongs to the genus Plantago and the family Plantaginaceae. The genus is a hearty one, comprising about 265 species distributed all over the world. The species most extensively documented in phytomedicinal research is Plantago major L., commonly known as great plantain or broadleaf plantain. Two closely related species — Plantago lanceolata L. (ribwort or narrowleaf plantain) and Plantago ovata Forssk. (blond psyllium) — share many constituents and applications but are taxonomically and pharmacologically distinct; they should not be confused with P. major.

The name Plantago originates from the Latin planta, meaning "sole of the foot," a reference to the broad, flat shape of the leaves. The plant is native to northern and central Asia and Europe. Early colonists brought plantain to North America as one of their favored healing remedies, and Native Americans called this persistent herb "white man's foot" as it is often found growing along well-trodden footpaths. It is today one of the most common lawn weeds after dandelion, colonizing entirely artificial habitats such as fissures in parking lots.

The plant's used parts include primarily the leaves, but also the seeds, roots, and aerial scapes. P. major has been prepared in various pharmaceutical forms throughout its history, including roasted seeds, decoction, syrup, liniment, gargle, rectal enema, vaginal suppository, and eye and nasal drops. In contemporary commercial and clinical contexts, preparations include standardized hydroalcoholic extracts, ointments, topical gels, syrups, and dried leaf powders.

2. Traditional and Historical Use

2.1 European and Mediterranean Antiquity

Researchers believe that Plantago major has existed as a medicinal plant for nearly 4,000 years, especially in Europe, Asia, and the Americas. The leaves have been used as a wound healing remedy for centuries in almost all parts of the world, and in the treatment of a number of diseases related to the skin, respiratory organs, digestive organs, reproduction, the circulation, against cancer, for pain relief, and against infections.

Plantago major was considered to be one of the nine sacred herbs by the ancient Saxon people, and has been celebrated in Anglo-Saxon poetry as the "mother of herbs." It was commonly used in the time of Shakespeare and is mentioned in his play Romeo and Juliet, Act I, Scene II: Romeo states, "Your plantain leaf is excellent for that," and when asked for what, replies, "For your broken shin."

P. major was described in Flora Danica by Simon Paulli in 1648 as a very efficient wound-healing remedy; at that time it was so common in use that even small children knew about it. The nerves were pulled out of the leaves, and the leaves were applied on wounds morning and evening. For superficial wounds to heal, it was sufficient to apply the juice from the plant.

2.2 Traditional Persian Medicine

Plantago major, commonly known as great plantain, is called "Lesan-ol-haml" or "Barhang" in Traditional Persian Medicine (TPM). According to TPM, Plantago major has a cold and dry temperament and has been used to decline inflammation and bleeding. It contains several active compounds and is used in treatment of various diseases such as constipation, coughs, wounds, infection, fever, bleeding, and inflammation. Medicinal properties of Plantago major are recorded in credible pharmacopeias and textbooks of traditional Persian medicine belonging to the 10th–18th centuries AD, such as The Canon of Medicine and Makhzan-Al-Advia.

2.3 Traditional Chinese Medicine

Plantago major L. is a popular traditional Chinese medicine that has long been used for treating various diseases ranging from cold to viral hepatitis. In Chinese traditional practice it has been employed for respiratory infections, inflammation, and urinary disorders.

2.4 Native American and Other Indigenous Traditions

Indigenous Americans adopted many traditional European uses for this herb. They used the plant to draw out the poison of rattlesnake bite, to soothe rheumatic pain, as a poultice to treat battle wounds, and as an eyewash. In Malaysia, P. major has been used as a diuretic, tonic, and cough mixture, and to treat urinary calculus and diabetes.

2.5 Cross-Cultural Summary of Traditional Indications

Wound healing and skin: Fresh leaf poultices, applied directly to cuts, bruises, burns, insect bites, and inflammatory skin conditions.
Respiratory: Syrups and decoctions for cough, bronchitis, and upper respiratory tract catarrh.
Digestive: Used for centuries to treat ailments of the digestive, respiratory, and reproductive systems, as well as wound healing and inflammatory diseases.
Urinary: Employed as a diuretic in multiple traditions including Vietnamese and Malaysian folk medicine.
Oral and mucous membranes: Gargles and mouthwashes for sore throats and mouth ulcers.

3. Key Constituents and Active Compounds

Plantago major is a significant medicinal plant that includes a wide range of bioactive substances, including phenolic compounds, flavonoids, terpenoids, iridoid glycosides, alkaloids, fatty acids, and polysaccharides. Phenolic chemicals are regarded as the most significant and active compounds among the numerous substances present in Plantago major.

3.1 Phenolic Acids and Caffeic Acid Derivatives

Plantamajoside is the main caffeic acid derivative in P. major L., with only small amounts of acteoside (a synonym of verbascoside) also present. The most prevalent non-volatile compounds identified by HPLC-MS analysis are plantamajoside and acteoside. Plantamajoside and acteoside have antibacterial activities. Some flavonoids and the caffeic acid derivatives plantamajoside and acteoside also have antioxidative and free radical scavenging activities. Chlorogenic acid and neochlorogenic acid have also been isolated from aqueous extracts.

3.2 Iridoid Glycosides

The main iridoid glycoside present in Plantago major is aucubin, which has been isolated from the leaves. Other iridoid glycosides present in the aerial portions include majoroside, 10-hydroxymajoroside, 10-acetoxymajoroside, catalpol, gardoside, geniposidic acid, and melittoside. The active component aucubigenin, generated from aucubin during catabolism, creates a dialdehyde that acts as a bactericide by denaturing the proteins of oral bacteria and plaque colonizers.

3.3 Flavonoids

Flavonoids isolated from Plantago major from Egypt include luteolin 7-glucoside, hispidulin 7-glucuronide, luteolin 7-diglucoside, apigenin 7-glucoside, nepetin 7-glucoside, and luteolin 6-hydroxy 4′-methoxy 7-galactoside. Aucubin, baicalein, luteolin, and baicalin — the glucuronide of baicalein — have also been extracted from the aqueous extract.

3.4 Terpenoids

The leaves contain compounds with anti-inflammatory activity, namely plantamajoside, baicalein, hispidulin, aucubin, ursolic acid, and oleanolic acid. Ursolic acid and oleanolic acid are pentacyclic triterpenoids of particular pharmacological significance.

3.5 Alkaloids

The alkaloids indicain and plantagonin have also been isolated from Plantago major.

3.6 Polysaccharides and Mucilage

Pectic polysaccharides have been reported to be effective against ulcers in animal models and for having immunostimulatory activities. The high concentration of mucilaginous carbohydrates in the plant acts as an immunostimulant and antioxidant and promotes wound closure.

3.7 Leaf Wax Alcohols

The long-chained saturated primary alcohols present in the leaf wax aid the healing of superficial wounds.

3.8 Fatty Acids and Vitamins

The seeds and leaves of Plantago major have also been used to separate fatty acids. The plant contains various vitamins, contributing to its nutritional and therapeutic profile alongside its other phytochemicals.

4. Established Mechanisms of Action

4.1 Anti-Inflammatory Mechanisms

Phenylethanoid glycosides (plantamajoside and acteoside) and the iridoid glycoside asperuloside are reported to exhibit antioxidant, anti-inflammatory, and tissue-regenerative properties, thereby supporting granulation and re-epithelialization. The anti-inflammatory effects have been attributed to α-linolenic acid, oleanolic acid, and ursolic acid as major compounds in P. major. These compounds inhibit the production of cyclooxygenase-2 (COX-2)-mediated prostaglandin.

Plantago major leaf extract (PMLE) and ursolic acid (UA) have anti-inflammatory properties as they significantly reduce nitric oxide (NO) formation in RAW264.7 cells following lipopolysaccharide (LPS) administration at all tested doses.

4.2 Antibacterial Mechanisms

Aucubigenin, derived from aucubin, is an active principle of greater relevance because in its process of catabolism, by hydrolysis, it forms a dialdehyde that acts as a bactericide, denaturing the proteins of certain microorganisms. The flavonoids acteoside and plantamajoside also have direct antibacterial properties.

4.3 Antiviral Mechanisms

Among pure compounds, caffeic acid showed the highest antiviral activity against HSV-1 (EC50 = 15.3 µg/mL), HSV-2, and ADV-3. Its mechanism of action against HSV-2 and ADV-3 has been found to be at the multiplication stage.

4.4 Wound Healing Mechanisms

Different mechanisms have been suggested for the wound healing effect of P. major, including antioxidant, anti-inflammatory, and antimicrobial effects due to its polyphenolic compounds, and induction of fibroblast proliferation. Proteins isolated from the plantain extract have been noted to affect the proliferation of fibroblasts, leading to accelerated wound healing.

4.5 Immunomodulatory Mechanisms

The pectic polysaccharides of the plant have immune-stimulating activity, and many of the phenolic compounds, especially flavonoids and caffeic acid derivatives (plantamajoside and acteoside), are associated with antioxidant activity and inhibition of free radicals in wound closure and rapid healing.

5. Scientific Evidence by Area of Use

5.1 Wound Healing

Evidence summary: Emerging clinical evidence; stronger preclinical basis.

Despite an earlier lack of human studies on this topic, there are animal research studies that support the healing properties of P. major. It has been revealed that tissue regeneration is highly dependent on inflammatory responses and oxidative reactions. Evidence indicates that both Plantago major and Aloe vera have antioxidant and anti-inflammatory activity and can improve collagen synthesis and fibroblast proliferation.

A significant randomized open-label controlled clinical trial examined P. major hydroalcoholic extract on diabetic foot ulcers (DFU) and pressure ulcers. Patients with DFU or PU were randomly assigned to a drug or control group. The drug group received Plantago extract 10% topical gel applied on the wound once daily concurrent with dressing and routine wound care for two weeks, while the control group received an appropriate novel dressing along with routine wound care. The percentage of wound size reduction at days 7 and 14 was recorded and compared between the groups. Fifty and 44 patients in the drug and control groups respectively completed the interventions. Plantago extract gel significantly resulted in more reduction in wound size compared to control at the end of the first week (64.90 ± 29.75% vs. 33.11 ± 26.55%; P < 0.001) and second week (86.85 ± 24.34% vs. 52.87 ± 32.41%; P < 0.001).

A separate case-control study evaluated P. major on second-degree burn wounds. Second-degree burn victims were included; the investigation and control group received P. major ointment 10% and silver sulfadiazine ointment 1%, respectively. Among the 15 patients, 11 were male and the mean age was 33.3 years. The average complete healing duration was 11.73 vs. 13 days in the P. major and control groups, respectively (P = 0.166). On the third day, infection control was similar between the two groups, and on the seventh day, all bacterial cultures were negative. Although there was a significant reduction in pain scores during the recovery time, no significant differences in pain reduction were noted between the two groups (P = 0.849). The study concluded that P. major ointment is a safe and suitable herbal compound in the treatment of second-degree burn wounds with wound-healing, analgesic, and antimicrobial properties. However, the small sample size (n = 15) and non-significant primary endpoints are important limitations.

5.2 Respiratory Conditions — Bronchitis and Cough

Evidence summary: Moderate for traditional use, supported by limited clinical data and regulatory endorsement.

Together its constituents are thought to give plantain mild anti-inflammatory, antimicrobial, antihemorrhagic, and expectorant actions. Plantain is approved by the German Commission E for internal use to ease coughs and mucous membrane irritation associated with upper respiratory tract infections, as well as topical use for skin inflammations. Two Bulgarian clinical trials have suggested that plantain may be effective in the treatment of chronic bronchitis, though insufficient details were provided in these reports to determine the quality of the trials or their findings.

A double-blind randomized clinical trial evaluated Plantago major syrup (PMS) specifically for acute bronchitis. Patients 20–75 years old with a Bronchitis Severity Scale (BSS) score ≥ 5 were enrolled. Patients randomly received PMS or placebo at 30 ml/day for 10 days and were visited before treatment and on days 5 and 10 after treatment. The primary outcome was the BSS score, and the secondary outcome was quality of life measured by the Leicester Cough Questionnaire. Of 121 patients diagnosed with acute bronchitis, 80 eligible patients were randomly divided into PMS and placebo groups. This study provides useful prospective data, though publication details from its ResearchGate-available preprint did not include final results that could be independently confirmed in the available search record.

For the related species Plantago lanceolata, a cough syrup containing 20 g fluid extract from Plantago lanceolata herb per 100 ml (mean daily dose ~30 ml, corresponding to ~6.0 g of the herbal substance, for ~10 days) was assessed in patients with acute respiratory infections (32%), acute bronchitis (28%), and irritative cough following acute respiratory infections (18%). After 3–14 days of treatment, intensity and frequency of coughing were reduced by 67% and 66%, respectively. The ESCOP monograph for Plantago lanceolata lists catarrh of the respiratory tract, temporary mild inflammations of the oral and pharyngeal mucosa, insect bites, and wound healing as therapeutic indications.

5.3 Radiation-Induced Oral Mucositis

Evidence summary: Preliminary but promising; one small RCT with positive results.

In a randomized double-blind, placebo-controlled trial, 23 patients received Plantago major syrup as the intervention group and 23 patients received placebo syrup as the control group for 7 weeks. Outcome measures were severity of mucositis according to the WHO scale and severity of patients' pain assessed by a visual analogue scale. Severity of mucositis was significantly lower in the intervention group compared to placebo (p < 0.05). P. major syrup was also associated with significantly less pain experienced during the radiotherapy period compared to placebo (p < 0.05). Two clinical trials have explored the efficacy of P. major extracts on oral mucositis; however, their results were conflicting. The limited sample sizes and need for replication are notable constraints.

5.4 Anti-Inflammatory Activity

Evidence summary: Robust preclinical data; no large human RCTs specifically for systemic inflammation.

In a carrageenan-induced rat paw edema model, Plantago major had an anti-inflammatory effect at doses of 20 and 25 mg/kg. Reduction in inflammation was 3.10% with PM-I (5 mg/kg), 41.56% with PM-II (10 mg/kg), 45.87% with PM-III (20 mg/kg), and 49.76% with PM-IV (25 mg/kg). The median effective dose (ED50) was found to be 7.507 mg/kg. Plantago major (25 mg/kg) also significantly reduced serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels compared to the CCl4 group, with histopathological findings confirming significant hepatoprotective activity. These findings are from animal studies and do not directly translate to human therapeutic doses.

5.5 Antimicrobial Activity

Evidence summary: Demonstrated in vitro; no well-powered human clinical trials.

Studies have shown that plant extracts of Plantago major exhibit antimicrobial, antiviral, and anti-inflammatory effects. Further studies have shown that P. major and P. lanceolata have antibiotic activity against some Gram-negative/Gram-positive bacteria, as well as fungi. The principal antibacterial mechanism is through aucubigenin (derived from aucubin) and the caffeic acid glycosides plantamajoside and acteoside. These results are largely from in vitro and animal models; large clinical trials in humans are lacking.

5.6 Antiviral Activity

Evidence summary: In vitro only; no controlled human trials.

Evaluation of the antiviral activity of the aqueous extract and pure compounds of Plantago major against several viruses, namely herpesviruses (HSV-1, HSV-2) and adenoviruses (ADV-3, ADV-8, ADV-11), showed that the aqueous extract has only slight activity against the herpes virus. By contrast, some pure compounds belonging to five different classes of chemicals found in the extracts showed potent antiviral activity. Results showed that the aqueous extract of P. major possessed only slight anti-herpes virus activity; in contrast, certain pure compounds belonging to five different classes of chemicals found in extracts of this plant exhibited potent antiviral activity. All current antiviral evidence derives from in vitro experimentation.

5.7 Gastrointestinal Applications

Evidence summary: Preliminary animal evidence; clinical evidence mainly from related species (P. ovata/psyllium).

Pectic polysaccharides have been reported to be effective against ulcers in rats and for having immunostimulatory activities. The psyllium in plantago species has been used for gastrointestinal conditions such as irritable bowel syndrome (IBS), diarrhea, constipation, and hemorrhoids. It has also been used to treat hyperlipidemia and may be useful for glycemic control in patients with type 2 diabetes. Although some clinical data exist to support use of plantago in constipation, respiratory infections, and hyperlipidemia, clinical information regarding other potential uses is lacking. It is important to note that most robust GI clinical evidence applies to Plantago ovata (psyllium), not to P. major specifically.

5.8 Hepatoprotective Activity

Evidence summary: Animal data only; no human trials identified.

A study of the methanol extract of P. major seeds in rats with CCl4-induced hepatotoxicity found that at 25 mg/kg, Plantago major significantly reduced serum ALT and AST levels compared to the CCl4 group, and histopathological findings showed a significant difference between the treated group and the CCl4-only group. This evidence is preclinical and not translatable to clinical recommendations without further human investigation.

5.9 Immunomodulatory Activity

Evidence summary: In vitro and animal data only.

A range of biological activities has been found from plant extracts including wound healing activity, anti-inflammatory, analgesic, antioxidant, weak antibiotic, immune-modulating, and antiulcerogenic activity. The immunostimulatory effects of the pectic polysaccharides have been documented in cell-based assays and animal models, but human immunological clinical trials are not yet available.

6. Body Systems Associated with Plantago major

Integumentary system: Wound healing, burn treatment, skin inflammation, insect bites.
Respiratory system: Cough, bronchitis, upper respiratory tract catarrh, expectorant use.
Oral and oropharyngeal mucosa: Radiation-induced mucositis, periodontal pathogens, mouth sores.
Gastrointestinal system: Antiulcerogenic activity (primarily animal data), diuretic use, antidiarrheal effects.
Immune system: Immunomodulation via pectic polysaccharides.
Hepatic system: Hepatoprotective effects (animal data).
Cardiovascular/metabolic: Antidiabetic and lipid-modulating properties reported in preclinical studies.

7. Dosage Forms and Reported Dosages from Studies

Dosages vary considerably across preparations, administration routes, and the specific condition being studied. Only doses explicitly reported in identified scientific sources are listed here.

Topical gel (wound healing): Plantago extract 10% topical gel applied to the wound once daily concurrent with dressing and routine wound care for two weeks.
Topical ointment (burn wounds): P. major ointment 10% applied to second-degree burn wounds, compared against silver sulfadiazine 1%.
Oral syrup (bronchitis/cough): Patients received Plantago major syrup or placebo at 30 ml/day for 10 days.
Oral syrup (oral mucositis): 23 patients received Plantago major syrup as the intervention group for 7 weeks.
Oral syrup (P. lanceolata, respiratory): A mean daily dose of about 30 ml of the syrup corresponding to about 6.0 g of the herbal substance, mean duration of administration 10 days.
Psyllium (general GI indications, P. ovata): General dosing of 3 to 6 g/day of psyllium; for constipation, 1 teaspoon to 1 tablespoon of powder or granules mixed in 180–240 mL of liquid 1 to 3 times/day.
Psyllium (glycemic control): 6.8 to 13.6 g/day of psyllium for 6 to 12 weeks has been used for glycemic control in type 2 diabetic patients.
Psyllium (hyperlipidemia): 10.2 g/day of psyllium in 2 to 3 divided doses.
Animal anti-inflammatory doses (not for human use; reference only): Doses of 5, 10, 20, and 25 mg/kg were tested in the carrageenan rat paw edema model.

8. Safety, Adverse Effects, and Drug Interactions

8.1 General Tolerability

P. major has been reported safe at recommended doses. Minor adverse reactions include flatulence, bloating, nausea, vomiting, indigestion, and sternum pain. More serious adverse effects, which have been reported particularly with psyllium-type preparations, include anaphylaxis, chest congestion, sneezing and watery eyes, and occupational asthma.

8.2 Allergic Reactions

The pollen contains allergenic glycoproteins that react with concanavalin A, as well as components that bind IgE. IgE-mediated sensitization to plantago pollen has been documented, and plantago pollen sensitivity should be considered during the diagnosis of seasonal allergy. Patients with known intolerance to Plantago species or plants of the Plantaginaceae family are contraindicated from use.

8.3 Pregnancy Concerns

Laboratory studies have reported uterine stimulatory activity for P. major, so caution is warranted during pregnancy. As there is no information on reproductive and developmental toxicity, the use during pregnancy and lactation cannot be fully evaluated, and tests on reproductive toxicity, genotoxicity, and carcinogenicity have not been performed for regulatory monograph purposes (noted in the EMA assessment for P. lanceolata, which shares relevant safety characteristics).

8.4 Pediatric Use

Based on the EMA assessment of Plantago lanceolata — which has closely related pharmacology — oral use in children under 6 years of age is not recommended due to lack of adequate data. Oral and oromucosal preparations for children under 12 years of age are not recommended, and cutaneous use in children under 3 years of age is also not recommended due to lack of adequate data.

8.5 Drug Interactions

There are no well-documented or theorized drug interactions with the use of P. major leaf extract specifically. However, two pharmacologically-reasoned interactions require attention:

Warfarin (anticoagulants): Great plantain contains large amounts of vitamin K. Vitamin K is used by the body to help blood clot, potentially opposing the anticoagulant effect of warfarin (Coumadin); this interaction is rated as moderate.
Oral drug absorption (fiber/mucilage): The mucilaginous fiber content of plantago preparations, particularly seed-based preparations, may physically impede the absorption of co-administered oral drugs. Separating dosing times is advisable to avoid any potential reduction in bioavailability of concurrently administered medications.

8.6 Pharmacovigilance Data

Pharmacovigilance data have identified no well-documented cases with a proved causality to new risks for Plantago species under regulatory review, suggesting a generally favorable safety record at traditional use doses when used appropriately.

References

Health Conditions

Health conditions that Plantain may help support.

Antioxidant DefenseScientific
P. major extracts contain multiple potent antioxidant compounds including plantamajoside, acteoside, caffeic acid, luteolin, and apigenin. Multiple in vitro and in vivo studies confirm robust free radical scavenging activity (DPPH assay), protection against oxidative stress in liver mitochondria and cell lines, and reduction of reactive oxygen species in biological systems.
Blood PressureScientific
Psyllium (P. ovata) supplementation demonstrated significant blood pressure reduction in diabetic patients in a randomized clinical trial. A systematic review of Plantago RCTs found that among its documented health benefits, blood pressure lowering (secondary to weight loss) is one of five major FDA-recognized benefits. P. lanceolata has traditional use for hypertension.
Blood Sugar BalanceScientific
Plantago major extracts show hypoglycemic activity in multiple animal models, attributed to flavonoid compounds and insulin-stimulating effects. Plantago psyllium (P. ovata) has human clinical evidence for blood glucose lowering in type 2 diabetes as adjunct therapy, with a double-blind placebo-controlled RCT in 125 subjects. P. major has been used as a folk remedy for diabetes in Europe and Asia.
Bronchial HealthScientific
Plantain herb has preclinical and clinical evidence relevant to bronchial health, including an RCT demonstrating reduction of bronchitis symptoms, sputum production, and bronchial irritation. In vitro studies confirm that P. lanceolata extract reduces bradykinin-mediated inflammatory responses in bronchial epithelial cells and modulates NF-κB signaling.
BronchitisScientific
A double-blind randomized controlled trial tested Plantago major syrup (30 ml/day for 10 days) in 80 patients with acute bronchitis. The P. major group showed significantly lower Bronchitis Severity Scale scores, cough frequency, sputum volume, and chest wall pain compared to placebo. This represents direct clinical evidence for P. major in bronchitis.
Burns and ScaldsScientific
A case-control clinical study directly evaluated P. major 10% ointment versus silver sulfadiazine 1% in second-degree burn wound patients. The plant's antimicrobial and anti-inflammatory compounds are proposed as the active drivers of burn wound improvement. Traditional use of fresh leaves on burns is also well-documented globally.
CholesterolScientific
A 2024 systematic review and meta-analysis of 29 RCTs (n=2769) found Plantago consumption significantly reduced total cholesterol by 0.28 mmol/L and LDL-C by 0.35 mmol/L versus control. Effects were attributable primarily to psyllium/Plantago husk and soluble fiber. A single RCT (n=125, double-blind, placebo-controlled) also confirmed cholesterol lowering with psyllium in type 2 diabetes patients.
Chronic InflammationScientific
Multiple in vitro and in vivo studies have characterized anti-inflammatory mechanisms in Plantago major. Key compounds—aucubin, plantamajoside, ursolic acid, and oleanolic acid—inhibit COX enzymes, histamine release, elastase, and complement activity. These mechanisms are supported at the cellular level, though dedicated human RCTs for chronic inflammatory conditions remain limited.
ColitisScientific
A randomized clinical trial found Plantago ovata seeds equivalent to mesalamine for UC remission maintenance. Psyllium fiber specifically protected against experimental colitis in mouse models where other fibers worsened disease. A case report documented improvement in refractory ulcerative pancolitis with P. major. The protective mechanism involves SCFA production and intestinal barrier maintenance.
ConstipationScientific
Plantago ovata (psyllium) husk is the gold-standard dietary fiber for regulating bowel movements, with robust clinical evidence from numerous RCTs for both constipation and diarrhea. The gel-forming arabinoxylan retains water in a mucous-gel structure, softening and bulking stools. Psyllium is recommended by the American College of Gastroenterology for IBS, which frequently presents with constipation.
DiarrheaScientific
Plantago psyllium (P. ovata) husk has documented clinical efficacy for both acute and chronic diarrhea, including diarrhea caused by enteral feeding. As a bulking agent, the gel-forming fiber absorbs excess luminal fluid and slows transit. P. major leaves with tannin content also show traditional antidiarrheal use with astringent preclinical support.
Gut Microbiome HealthScientific
Plantago polysaccharides (particularly psyllium arabinoxylan) regulate gut microbiota composition in clinical studies. Psyllium increases SCFA-producing bacteria (Faecalibacterium, Lachnospira, Phascolarctobacterium) and modulates Bifidobacterium in a baseline-dependent manner in human studies. These microbiome changes support colonic health, immune modulation, and intestinal barrier integrity.
HemorrhoidsScientific
Psyllium (Plantago ovata husk) has documented clinical benefits for hemorrhoids, listed alongside constipation, IBS, and diarrhea in a 2024 PMC systematic review of clinical evidence. By softening stools and reducing straining, psyllium fiber directly reduces hemorrhoidal irritation and recurrence. Traditional use of P. major for hemorrhoids is also documented.
IBSScientific
Psyllium (Plantago ovata husk) is the only fiber recommended by the American College of Gastroenterology for irritable bowel syndrome. It is the sole fiber meeting evidence criteria for IBS management. Multiple clinical trials support its use for IBS-related constipation, diarrhea, and abdominal discomfort via its gel-forming, microbiota-modulating fiber action.
Inflammatory Bowel Disease (IBD)Scientific
Plantago ovata seeds were compared head-to-head against mesalamine in a randomized clinical trial for maintaining remission in ulcerative colitis. P. major was reported helpful in a case of refractory ulcerative pancolitis. Psyllium fiber is protective against experimental colitis and modulates gut microbiota and intestinal barrier—both central IBD mechanisms.
Leaky GutScientific
Psyllium (Plantago ovata) supplementation has been shown preclinically to restore tight junction protein expression, improve intestinal barrier integrity, and reduce intestinal permeability. These effects were demonstrated in colitis mouse models and CKD rat models. Improved gut barrier function is a key mechanism behind psyllium's broader GI benefits.
Mucus & PhlegmScientific
Plantago contains mucilage polysaccharides and expectorant constituents that act on mucous membranes to reduce excessive mucus production and facilitate expectoration. Clinical improvements in sputum production were observed in the P. major acute bronchitis RCT. Plantago lanceolata is recognized as an expectorant in official monographs.
Sore ThroatScientific
In vitro evidence demonstrates that Plantago lanceolata extract reduces NF-κB-driven inflammation in tonsil epithelial cells, with measurable reduction in inflammatory mediators. Traditional use for mouth and throat inflammation is recorded in Ayurvedic, Traditional Chinese, and European herbal systems. A registered EU herbal medicine (StrepCough) uses P. lanceolata for sore throat.
TriglyceridesScientific
A randomized clinical trial of P. major seed in NAFLD patients found significant reductions in triglycerides (P=0.001) after 12 weeks of supplementation at 2 g/day. Psyllium soluble fiber specifically lowered triglycerides in a subgroup analysis of a 2024 meta-analysis. A double-blind placebo-controlled RCT (n=125) with psyllium in type 2 diabetes also found significant triglyceride reduction.
UlcersScientific
Pectic polysaccharides from P. major have demonstrated antiulcerogenic effects in rat models. A randomized controlled clinical trial found P. major hydroalcoholic extract gel accelerated healing of diabetic foot ulcers and pressure ulcers in humans. P. major syrup reduced radiation-induced oral mucositis in an RCT. Traditional antiulcer use spans multiple global traditions.
Upper Respiratory HealthScientific
Plantago lanceolata is officially used and pharmacopoeially recognized for upper respiratory tract infections including cough and pharyngeal inflammation. P. major extracts show anti-inflammatory, spasmolytic, and antimicrobial activity in the upper airways. Human trials and monograph-level recognition support this application.
Viral Immune ResponseScientific
P. major aqueous extract has been tested in vitro against herpesviruses (HSV-1, HSV-2) and adenoviruses (ADV-3, ADV-8, ADV-11), showing slight anti-herpes activity. Immunostimulatory activity has been confirmed experimentally. Pectic polysaccharides from P. major have immunostimulatory properties. P. major is a long-standing traditional Chinese medicine for viral diseases from cold to viral hepatitis.
Wound HealingScientific
Plantago major has clinical and extensive preclinical evidence for wound healing. A case-control study compared P. major 10% ointment against silver sulfadiazine in second-degree burn patients. A randomized controlled trial found 10% topical P. major gel accelerated healing of diabetic foot ulcers and pressure ulcers. Mechanisms include antioxidant, anti-inflammatory, and antimicrobial effects from polyphenolic compounds, and stimulation of fibroblast proliferation.
Abdominal DiscomfortTraditional
Plantain is widely documented in traditional medicine for abdominal pain, intestinal complaints, and stomach discomfort. Its mucilage acts as a soothing demulcent throughout the GI tract. Spasmolytic activity demonstrated in experimental research may reduce abdominal cramping. Plantago is used in treating abdominal pain across multiple ethnobotanical traditions.
AbscessesTraditional
Plantain (Plantago spp.) has been used in traditional herbalism for abscesses as a topical poultice, referenced in multiple herbalist texts for drawing and healing abscessed tissue. Scientific studies confirm anti-inflammatory and wound-healing properties in vitro and in animal models. No abscess-specific RCTs exist.
ArthritisTraditional
Plantago lanceolata leaves have been traditionally used for arthritis and joint inflammation. Anti-inflammatory mechanisms (COX-1/COX-2 inhibition, NF-κB suppression, histamine inhibition) provide relevant pharmacological rationale. Traditional use for rheumatism and arthritis is documented globally. No dedicated human RCT for arthritis with Plantago has been published.
AsthmaTraditional
Plantain is listed in traditional medicine globally for asthma treatment. Preclinical studies in asthmatic rats with P. major extract show reduced lung pathology. P. lanceolata shows antispasmodic activity relevant to bronchoconstriction. No human RCT for asthma specifically has been published.
Bites and StingsTraditional
Plantain (Plantago major/lanceolata) is one of the most consistently cited traditional remedies for insect bites and stings across cultures, used as a fresh-leaf poultice to draw out venom, reduce swelling, and relieve itching. It contains aucubin and allantoin, compounds with documented anti-inflammatory and tissue-soothing actions. Multiple herbal medicine authorities list plantain as a first-choice herb for bites and stings.
Bladder HealthTraditional
Bladder problems are among the classically recorded traditional uses of Plantago major in European, Asian, and Persian folk medicine. Traditional use includes cystitis and bladder inflammation. In vitro antimicrobial activity against uropathogens and documented diuretic effects in preclinical studies support the plausibility of this traditional application.
Cold & FluTraditional
Plantago major is a traditional Chinese and European folk medicine for colds and flu-like symptoms. It is listed among classic applications for cold, cough, fever, and hoarseness in traditional records. Antimicrobial and anti-inflammatory properties support the rationale. In vitro antiviral activity against respiratory viruses and immunostimulatory properties have been demonstrated.
EczemaTraditional
Plantago major leaves are documented in traditional medicine worldwide for skin diseases including eczema and dermatitis. Anti-inflammatory and antiallergic compounds (plantamajoside, aucubin) that inhibit histamine and prostaglandin synthesis provide a mechanistic basis. Traditional use involves topical application of crushed leaves or leaf extracts to inflamed skin.
FeverTraditional
Fever reduction is documented as a traditional use of Plantago major in multiple global ethnobotanical records. Antipyretic properties are cited in traditional Persian medicine. P. major extracts contain antipyretic compounds including aucubin and phenolic acids. No dedicated human RCT for antipyretic effect with P. major has been conducted.
GastritisTraditional
Plantago major has documented traditional use for gastritis, stomach inflammation, and peptic complaints across multiple global traditions. Its mucilage content is proposed to coat and protect the gastric mucosa. Pectic polysaccharides from P. major have shown antiulcerogenic activity in rat models, supporting the gastroprotective rationale.
Gout & Uric Acid SupportTraditional
Gout and uric acid-related conditions are documented traditional applications for Plantago in multiple European and Asian folk medicine systems. The diuretic effect of P. major supports urate excretion. Anti-inflammatory mechanisms are relevant to gout flares. No human clinical data for gout specifically with Plantago has been published.
Kidney HealthTraditional
Plantago species are used in traditional medicine for kidney-related complaints. Kidney stones are listed among traditional applications. Psyllium fiber from P. ovata seeds demonstrated reduced renal tubular injury in CKD animal models by modulating the gut–kidney axis and reducing uremic toxin accumulation. Evidence is preclinical and traditional for P. major specifically.
Kidney Stones & Urinary Mineral BalanceTraditional
Kidney stones are documented among the traditional indications for Plantago major in global ethnobotanical records. Traditional Chinese Medicine uses the closely related Plantago asiatica seeds specifically for urinary calculi. Diuretic properties documented in preclinical studies may support urinary mineral clearance. No clinical trials for kidney stones with P. major exist.
Lung HealthTraditional
Plantain has been traditionally used for lung-related ailments including asthma, emphysema, and bronchitis in multiple global traditions. Preclinical studies show anti-inflammatory effects in lung tissue. Traditional Chinese Medicine uses related Plantago asiatica for lung-moistening. Commission E recognizes P. lanceolata for respiratory catarrhs.
Poison Ivy or OakTraditional
Plantain (Plantago major/lanceolata) has been used for centuries in European and Native American herbalism as a poultice for poison ivy rashes, insect bites, and skin inflammations. It contains allantoin, aucubin, and caffeic acid, which provide anti-inflammatory, antimicrobial, and wound-healing activity. EBSCO Health Research Starters notes that evidence indicates topical plantain is helpful for skin conditions including poison ivy.
Rashes and HivesTraditional
Plantain is traditionally applied to skin rashes, hives, insect bites, and urticaria across European, American, and Asian folk medicine. Anti-histaminic activity (inhibition of histamine release from mast cells) provides a pharmacological basis for hive relief. Traditional application of fresh crushed leaves directly to skin reactions is one of the most widely recorded uses globally.
Seasonal AllergiesTraditional
Hay fever is among the documented traditional applications of Plantago major in ethnobotanical records. Anti-allergic activity for plantamajoside has been demonstrated in vitro (inhibition of histamine release from mast cells). Traditional use for hay fever and rhinitis is recorded in European and Asian folk medicine. No human allergy RCT exists.
Seasonal Respiratory HealthTraditional
Plantain has a long tradition of use in European and Asian herbal medicine for seasonal respiratory complaints including catarrh, excess mucus, and cold-related cough. Its documented demulcent, expectorant, and mild antimicrobial properties support this use. No dedicated RCTs exist specifically for seasonal respiratory health as a distinct indication.
Sinus & Nasal CongestionTraditional
Plantago is used traditionally for sinus and nasal complaints. Its anti-inflammatory and antimicrobial properties are relevant to sinusitis. Traditional use for hoarseness, rhinitis, and nasal congestion is documented in European and Asian folk medicine. Mucilage may soothe inflamed nasal mucosa. No dedicated human clinical trial for sinusitis with plantain has been published.
Urinary Tract HealthTraditional
Plantago major has a long tradition of use as a diuretic and for urinary tract complaints including cystitis across European, Asian, and Vietnamese traditional medicine. Preclinical diuretic effects have been studied. Traditional Chinese and Vietnamese medicine use Plantago species specifically for urinary tract inflammation.
Urinary Tract Health (UTI Support)Traditional
Traditional medicine systems across Europe, Asia, and Vietnam use Plantago major for urinary tract infections and cystitis. Antimicrobial activity against common uropathogens (E. coli, Klebsiella, Proteus) has been demonstrated in vitro. Diuretic effects documented in animal models may support urinary flushing. No human RCT for UTI with P. major exists.

Body Systems

Body systems that Plantain may help support.

No body systems available.