adrenal support – Ayurved Healing

Yastimadhu (Glycyrrhiza glabra): Adrenal Recovery, Ulcer Healing, and Safe Dosage Limits

Rohan Kapoor — Tue, 04 Aug 2026 07:30:00 +0000

Yastimadhu (Glycyrrhiza glabra): Gastric Soothing, Adrenal-Axis Support, and Safe Dosage Limits

My grandfather kept a piece of mulethi in his shirt pocket at all times. Whenever his throat felt scratchy or his stomach burned after a heavy meal, he would chew it slowly, extracting the sweet juice. As children, we loved stealing pieces from his pocket because it tasted like natural candy. “This root has more sweetness than sugar,” he would say, “but the sweetness that heals rather than harms.”

Yashtimadhu, also written Yastimadhu, is the Ayurvedic name for licorice root, commonly called mulethi in Hindi. The Ayurvedic Pharmacopoeia of India identifies Yashti as the dried, unpeeled stolon and root of Glycyrrhiza glabra. Ayurveda values it as a sweet, cooling, nourishing, and Vata-Pitta-pacifying herb, especially for the throat, respiratory tract, gastric burning, weakness, and tissue repair. Its sweetness comes largely from glycyrrhizin, a compound that also explains why licorice must be used with respect: excess or prolonged intake can raise blood pressure, lower potassium, and cause fluid retention in susceptible people.

Ayurvedic Profile and Pharmacology

Classically, Yashtimadhu is a madhura, snigdha, guru, sheeta herb with madhura vipaka. This means it is sweet in taste, unctuous and heavy in quality, cooling in potency, and nourishing after digestion. Under the synonym Madhuka, the Charaka Samhita places it in several therapeutic groups, including Jivaniya, Sandhaniya, Varnya, Kanthya, Snehopaga, Dahaprashamana, Angamardaprashamana, and Shonitasthapana. The Ayurvedic Pharmacopoeia lists its actions as Balya, Cakshushya, Vrishya, Varnya, Vatapittajit, and Raktaprasadana.

Property	Classical Description	Practical Meaning
Botanical identity	Glycyrrhiza glabra root and stolon	The dried underground parts are used as Yashti or mulethi.
Rasa	Madhura (sweet)	Supports a soothing, nourishing, demulcent role; glycyrrhizin is intensely sweet.
Guna	Guru (heavy), Snigdha (unctuous)	Traditionally used where dryness, roughness, irritation, and depletion are prominent.
Virya	Sheeta (cooling)	Fits its use in burning sensations, throat irritation, and Pitta-type heat.
Vipaka	Madhura	Supports nourishment, strength, and tissue-building indications.
Dosha karma	Vatapittajit	Best suited to Vata-Pitta patterns rather than heavy Kapha accumulation.
Classical uses	Kasa, Ksaya, Svarabheda, Vatarakta, Vrana	Traditionally used for cough, wasting/depletion, hoarseness, inflammatory blood-Vata disorders, and wounds.
Classical dose	2–4 g powder	A conservative adult range for ordinary root powder unless a practitioner directs otherwise.

Therapeutic Application 1: Gastric Burning, Dyspepsia, and Ulcer-Conscious Support

Yashtimadhu is especially suited to burning, sourness, irritation, and dryness in the upper digestive tract. Its madhura rasa, snigdha guna, and sheeta virya make it a natural Ayurvedic choice for Pitta-type gastric discomfort and Vata-related roughness of the mucosa. In modern herbal practice, licorice root is also used for digestive burning and dyspepsia, while deglycyrrhizinated licorice is used as a demulcent preparation for minor inflammation and burning of the gastrointestinal tract.

Classical root powder: 2–4 g of Yashtimadhu churna may be used in appropriate cases, preferably under the guidance of a qualified practitioner.
Digestive tea or decoction: A conservative adult preparation is 1.5–2 g of cut or powdered licorice root in about 150 ml water, taken after meals when suitable.
DGL tablets: Deglycyrrhizinated licorice is usually taken as a chewable product so it mixes with saliva before reaching the stomach. A common adult range is 380–760 mg before meals or between meals, within the product label and practitioner guidance.
When ulcers are suspected: Persistent burning, severe abdominal pain, black stools, vomiting blood, unexplained weight loss, anemia, or chronic painkiller use requires medical evaluation. Yashtimadhu can be supportive, but it should not replace diagnosis and appropriate care for peptic ulcer disease.

Therapeutic Application 2: Adrenal-Axis Support and Cortisol Metabolism

Yashtimadhu is sometimes discussed in relation to adrenal recovery because glycyrrhizin is metabolized into compounds that affect cortisol metabolism. The key point is not that licorice forces the adrenal glands to produce more hormones; rather, glycyrrhetinic acid can inhibit 11-beta-hydroxysteroid dehydrogenase, an enzyme involved in converting cortisol to cortisone. This can make cortisol activity last longer in certain tissues, which is why the herb may feel strengthening in selected depletion patterns and why it can also cause mineralocorticoid-like side effects when misused.

In Ayurvedic terms, Yashtimadhu belongs more naturally to presentations of dryness, irritation, hoarseness, weakness, Vata-Pitta depletion, and tissue exhaustion than to heaviness, congestion, edema, or Kapha accumulation. Anyone with diagnosed adrenal disease, unexplained chronic fatigue, faintness, blood-pressure instability, or corticosteroid use should treat this as a practitioner-guided herb rather than a self-prescribed tonic.

Practical use: For ordinary root powder, stay within the 2–4 g classical dose range unless supervised. Avoid combining licorice capsules, licorice tea, mulethi sticks, black licorice candy, and formulas containing Yashtimadhu on the same day, because total glycyrrhizin exposure is what drives many safety concerns.

Therapeutic Application 3: Respiratory and Voice Support

Yashtimadhu is one of Ayurveda’s most beloved herbs for the throat and voice. The Ayurvedic Pharmacopoeia lists Kasa and Svarabheda among its uses, and Charaka’s Kanthya grouping supports its traditional reputation for the throat. Its sweet, cooling, unctuous nature makes it especially fitting for dry cough, throat scratchiness, hoarseness, and vocal strain.

Dry cough and throat irritation: Yashtimadhu churna may be used within the 2–4 g range with a suitable anupana chosen for the person and season.
Cough associated with cold: A simple tea can be prepared from about 1.5 g licorice root in 150 ml water, used for short-term respiratory support in appropriate adults.
Voice strain: Slowly sipping warm Yashtimadhu tea or using a small piece of mulethi root traditionally supports the throat when dryness and roughness are the main features.
When to seek care: Shortness of breath, fever, thick purulent sputum, chest pain, wheezing, or a cough that persists beyond a short acute episode should be assessed by a healthcare provider.

The Safety Question: Glycyrrhizin, Blood Pressure, and Potassium

This is where Yashtimadhu’s sweetness becomes a double-edged sword. Glycyrrhizin and its metabolites can inhibit 11-beta-hydroxysteroid dehydrogenase in a way that allows cortisol to act more strongly at mineralocorticoid-sensitive receptors. The result can be sodium and water retention, potassium loss, swelling, high blood pressure, muscle weakness, heart-rhythm disturbance, and, in severe cases, serious cardiovascular complications.

Use Pattern	Conservative Adult Range	Safety Note
Classical Yashtimadhu powder	2–4 g powder	Best used short-term or in cycles, with blood-pressure awareness during regular use.
Digestive tea or decoction	1.5–2 g in 150 ml water, after meals when suitable	Do not continue for weeks without reassessment, especially if symptoms persist.
Cough/cold tea	About 1.5 g in 150 ml water, short term	Seek medical care for persistent cough, fever, breathlessness, or purulent sputum.
DGL chewable preparation	380–1520 mg, up to three times daily according to product and practitioner guidance	Designed to contain very little of the original glycyrrhizic acid; must be chewed or mixed with saliva.
Concentrated extracts or stacked licorice products	Use only under professional supervision	Highest concern for hypertension, hypokalemia, edema, and drug interactions.

Who Should Avoid Yashtimadhu or Use It Only Under Direct Supervision

Glycyrrhizin-containing licorice is not appropriate for everyone. People with blood-pressure, kidney, liver, heart, electrolyte, pregnancy, or medication-related risks should not treat it as a casual home remedy.

People with hypertension, including those whose blood pressure is controlled with medication
People with kidney disease, liver disease, heart disease, heart failure, edema, or rhythm disorders
Anyone with low potassium or a history of electrolyte imbalance
People taking diuretics, cardiac glycosides, corticosteroids, stimulant laxatives, or medicines that disturb electrolytes
People taking antihypertensive medication, because licorice may oppose blood-pressure control
Pregnant or breastfeeding women, unless specifically guided by a qualified clinician
Children and adolescents unless guided by a qualified practitioner
Anyone who develops swelling, headache, muscle weakness, palpitations, or unusual fatigue while using licorice

Safer Options When Glycyrrhizin Is a Concern

When the goal is digestive demulcent support rather than the full systemic action of licorice, DGL is often the safer licorice-based option. It is processed so the finished product contains only a small percentage of the original glycyrrhizic acid, while retaining a soothing role for the gastrointestinal tract.

DGL: Best suited when the main concern is gastric burning or minor gastrointestinal irritation and blood-pressure safety is important.
Individualized Ayurvedic substitutes: When licorice is unsuitable, a practitioner may choose other cooling, demulcent, or nourishing herbs based on the person’s dosha pattern, digestion, medications, and diagnosis.
Medical treatment when required: Red-flag digestive or respiratory symptoms should be evaluated rather than masked with herbs.

My Approach to Safe Use

Yashtimadhu is powerful precisely because it is both soothing and systemically active. My grandfather’s small mulethi stick, used occasionally in the context of a traditional diet and active life, is very different from concentrated capsules taken daily alongside blood-pressure medicines or a low-potassium diet.

Confirm whether the product is whole licorice, extract, DGL, candy, tea, or part of a formula.
Check blood pressure and review kidney, heart, liver, pregnancy, and medication history before regular use.
Keep ordinary root powder within the 2–4 g classical range unless supervised.
Avoid stacking multiple sources of licorice on the same day.
Use DGL rather than whole licorice when long-term gastric demulcent support is needed and glycyrrhizin is a concern.
Stop use and seek medical advice if swelling, headache, palpitations, muscle weakness, or unusual fatigue appears.
Reassess persistent digestive symptoms, cough, hoarseness, or fatigue instead of extending licorice use indefinitely.

For broader support around exhaustion and digestive repair, Yashtimadhu belongs inside a complete plan that considers sleep, food timing, agni, bowel habits, stress load, medications, and the person’s constitution. Used wisely, it remains one of Ayurveda’s most graceful sweet roots; used carelessly, that same sweetness can become a source of avoidable harm.

Medical Disclaimer: This article is for educational purposes only and does not constitute medical advice. Yashtimadhu or licorice can interact with medications and may cause hypertension, hypokalemia, edema, and heart-rhythm problems in susceptible people. Consult a qualified Ayurvedic practitioner or healthcare provider before using licorice products, especially if you have high blood pressure, heart disease, kidney disease, liver disease, pregnancy, electrolyte imbalance, or take prescription medicines. Do not exceed recommended dosages or use continuously without professional supervision.

References

Yashtimadhu (Licorice): The Adrenal Support Herb with 40+ Studies

Dr. Meera Iyer — Sat, 21 Feb 2026 16:48:10 +0000

Yashtimadhu: Classical Identity, Uses, and Modern Safety

Yashtimadhu, also called Yashti or Madhuyashti, is the dried root and stolon of Glycyrrhiza glabra L. The Ayurvedic Pharmacopoeia of India identifies it as a sweet, cooling, unctuous and nourishing drug traditionally used in conditions such as cough, hoarseness, wasting, wounds and Vatarakta. Modern interest has focused on its triterpenoid saponins, especially glycyrrhizin, but the same constituents that contribute to its pharmacological activity can also cause clinically important adverse effects. Whole-root licorice, standardized extracts and deglycyrrhizinated licorice are therefore not interchangeable.

Identity and Pharmacopoeial Standard

The official Ayurvedic monograph describes Yashti as the dried, unpeeled stolon and root of Glycyrrhiza glabra L., family Leguminosae. Its recognized synonyms include Yashtimadhuka, Yashtika, Madhuka, Madhuyashti and Yashtyahva. Correct botanical identification matters because commercial products may differ in plant species, extraction method, glycyrrhizin content and intended route of use.

Pharmacopoeial Feature	Verified Description
Official part	Dried, unpeeled root and stolon
Botanical source	Glycyrrhiza glabra L.
Important constituents listed in the API	Glycyrrhizin, glycyrrhizic acid, glycyrrhetinic acid, asparagine, sugars, resin and starch
Pharmacopoeial powder dose	2–4 g, subject to professional individualization

Classical Ayurvedic Pharmacology

The Ayurvedic Pharmacopoeia gives Yashtimadhu a predominantly nourishing and cooling profile. Its properties support its classical use where soothing, unctuous and strength-promoting actions are desired, while its heaviness and sweetness require thoughtful selection in patients with marked Kapha, sluggish digestion or fluid retention.

Rasa: Madhura (sweet)
Guna: Guru (heavy) and Snigdha (unctuous)
Virya: Shita (cooling)
Vipaka: Madhura (sweet post-digestive effect)
Dosha action: Vatapittajit, meaning it pacifies Vata and Pitta
Classical karmas: Balya, Chakshushya, Vrishya, Varnya and Raktaprasadana
Pharmacopoeial therapeutic uses: Kasa, Kshaya, Svarabheda, Vatarakta and Vrana

Classical Groupings and Rasayana Context

In Charaka Samhita, Madhuka—a recognized synonym of Yashti in the Ayurvedic Pharmacopoeia—is included in several ten-drug groups, including Jeevaniya, Sandhaniya, Varnya, Kanthya and Kandughna. These classifications place the drug in life-supporting, tissue-restorative, complexion-promoting, throat-benefiting and itching-relieving contexts. Charaka also describes Yashtimadhu powder taken with milk among the Medhya Rasayana measures. This is a classical mode of administration and should not be converted into a modern disease prescription without assessing digestion, constitution, comorbidities and concurrent medicines.

Phytochemical Profile

Licorice root contains several constituent classes rather than a single active principle. Glycyrrhizin and its metabolite glycyrrhetinic acid are especially important because they influence cortisol metabolism and account for much of the characteristic safety profile. Flavonoids and chalcones such as liquiritin, isoliquiritigenin and glabridin are also well described, although findings from laboratory studies do not establish identical clinical effects for every licorice preparation.

Constituent Class	Representative Compounds	Clinical Relevance
Triterpenoid saponins	Glycyrrhizin and glycyrrhizic acid	Major markers of whole-root licorice and principal contributors to mineralocorticoid-type adverse effects
Triterpenoid metabolite	Glycyrrhetinic acid	Inhibits 11-beta-hydroxysteroid dehydrogenase type 2
Flavonoids and chalcones	Liquiritin, isoliquiritigenin and glabridin	Phytochemical markers investigated in experimental pharmacology
Other constituents	Asparagine, sugars, resin and starch	Components recorded in the Ayurvedic pharmacopoeial monograph

Digestive and Oral Applications

European and Canadian herbal monographs recognize traditional digestive uses of licorice preparations for symptoms such as burning, dyspepsia and minor inflammatory irritation of the gastrointestinal tract. Evidence is preparation-specific: whole-root tea, standardized extracts and DGL differ substantially in glycyrrhizin exposure, dose and safety considerations.

Functional Dyspepsia

A randomized, double-blind, placebo-controlled trial evaluated the standardized licorice extract GutGard at 75 mg twice daily for 30 days in adults with functional dyspepsia. Total symptom scores improved more with the extract than with placebo at days 15 and 30, and quality-of-life scores also improved. The result supports the studied extract and regimen; it does not establish equivalent dosing for ordinary root powder, tea or unrelated commercial products.

Deglycyrrhizinated Licorice

DGL is processed to remove most of the original glycyrrhizic acid. Health Canada’s oral DGL monograph permits claims for relief of minor gastrointestinal inflammation and abdominal pain or burning in the stomach. For adults, it lists 380–1,520 mg per dose three times daily, chewed or mixed with saliva between meals or about 20 minutes before meals. The finished product must contain no more than 3% of the original glycyrrhizic acid quantity. These specifications apply to qualifying DGL products, not to whole Yashtimadhu powder.

Aphthous Ulcers

A small clinical trial using licorice bioadhesive hydrogel patches in recurrent aphthous ulcers reported reductions in pain and lesion dimensions compared with placebo or no treatment. A separate Canadian buccal DGL monograph recognizes temporary relief of minor oral mucosal inflammation, including canker sores. Persistent, unusually large or frequently recurring ulcers require dental or medical assessment rather than repeated self-treatment.

Respiratory and Throat Use

Yashtimadhu’s traditional respiratory role is consistently reflected across sources. The Ayurvedic Pharmacopoeia lists Kasa and Svarabheda among its uses, while Charaka includes Madhuka in the Kanthya group. The European herbal monograph recognizes licorice root as a traditional expectorant for cough associated with a cold. Breathlessness, high fever, purulent sputum or a cough that persists or worsens warrants prompt medical evaluation.

Cortisol Metabolism and Pseudoaldosteronism

In kidney tissue, 11-beta-hydroxysteroid dehydrogenase type 2 normally converts active cortisol to cortisone and thereby protects the mineralocorticoid receptor. Glycyrrhetinic acid inhibits this enzyme. Cortisol can then stimulate mineralocorticoid receptors, promoting sodium and water retention, potassium loss, raised blood pressure and, in severe cases, cardiac rhythm disturbances. This pathway explains licorice-induced pseudoaldosteronism; it is not a basis for self-treating fatigue, suspected adrenal insufficiency or low cortisol.

“Adrenal fatigue” is not an accepted endocrine diagnosis, and a 2016 systematic review found no substantiation for it as a distinct medical condition. Persistent fatigue, weakness, dizziness, weight change or suspected adrenal disease should be investigated by a qualified healthcare provider rather than managed with licorice on the assumption that prolonging cortisol action is beneficial.

Dose and Preparation Matter

Published doses belong to specific traditions, products and indications. They should not be combined, multiplied or transferred from one preparation to another. Glycyrrhizin content varies, and the patient’s blood pressure, potassium status, kidney function, medicines and duration of use can change the risk substantially.

Preparation	Verified Reference Dose	Important Qualification
Ayurvedic root powder	2–4 g	API pharmacopoeial dose; individualize under professional guidance
Licorice-root tea for digestive symptoms	1.5–2 g in 150 ml water, 2–4 times daily after meals	EMA traditional-use regimen; do not use longer than 4 weeks without medical advice
Licorice-root tea for cough with a cold	1.5 g in 150 ml water twice daily	EMA traditional-use regimen for adults
Qualifying oral DGL product	380–1,520 mg per dose, 3 times daily	Chew or mix with saliva; product must meet the DGL glycyrrhizic-acid specification

European and international safety evaluations have discussed regular intake around 100 mg glycyrrhizinic acid per day as unlikely to cause adverse effects in most adults, but this is not a guaranteed safe dose or an established acceptable daily intake. Susceptible individuals may develop adverse effects below that amount, especially with repeated exposure.

Safety, Contraindications and Interactions

Whole licorice can produce water retention, hypokalemia, hypertension and arrhythmias, particularly with high intake, prolonged use or increased susceptibility. It should not be treated as an unrestricted food-like tonic. A qualified Ayurvedic practitioner or healthcare provider should review any planned course, especially when symptoms are chronic or medicines are being taken.

Avoid during pregnancy. During breastfeeding, use only after professional assessment.
Avoid in hypertension, hypokalemia, kidney disease, liver disease or cardiovascular disease unless specifically supervised by a clinician.
Do not combine casually with potassium-depleting diuretics, cardiac glycosides, corticosteroids, stimulant laxatives or other medicines that can worsen electrolyte imbalance.
Licorice may oppose antihypertensive treatment and may increase the consequences of low potassium.
Avoid taking several licorice-containing teas, candies, supplements or formulas at the same time.
Seek medical care if swelling, marked weakness, muscle cramps, palpitations or a substantial rise in blood pressure occurs.

Responsible Ayurvedic Use

Yashtimadhu is best selected according to the patient’s Prakriti, current dosha disturbance, Agni, tissue state, age, season and medical history. Its Madhura, Guru, Snigdha and Shita qualities can be appropriate in selected Vata- or Pitta-predominant presentations, but the same profile may be unsuitable where heaviness, poor digestion, congestion or fluid retention dominate. Long-term use should not proceed solely because the herb is described as Balya, Medhya or Rasayana in a classical context.

Confirm the botanical identity, plant part and preparation on the label.
Distinguish whole-root licorice from DGL and standardized extracts.
Use the lowest appropriate dose for the shortest suitable duration.
Do not use licorice as a substitute for evaluation of persistent gastrointestinal, respiratory, endocrine, hepatic or oral symptoms.
For constitutional context, see the Prakriti assessment guide, while recognizing that formal prescribing requires an individualized consultation.

A Balanced Clinical View

Yashtimadhu is a well-defined Ayurvedic drug with verified classical actions, traditional digestive and respiratory uses, and a small but relevant body of preparation-specific clinical evidence. Its benefits should be interpreted alongside its predictable effects on cortisol metabolism, blood pressure, potassium and fluid balance. Correct identification, appropriate formulation, limited duration and professional supervision preserve the value of this classical herb while reducing avoidable harm.