Herb × Condition

Punarnava for Glaucoma

Sanskrit: Punarnavā | Boerhaavia diffusa

How Punarnava helps with Glaucoma according to Ayurveda. Classical references, dosage, preparation methods, and what modern research says.

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Punarnava for Glaucoma: Does It Work?

Does Punarnava (Hogweed, Boerhaavia diffusa) help with glaucoma? Yes, and Punarnava is the lead herb in the classical Ayurvedic anti-glaucoma tea. The recorded home-remedy formula is Punarnava 5 parts to Jatamansi 3 parts to Shankhapushpi 3 parts, boiled as a tea and taken twice daily. The 5:3:3 ratio is not accidental: Punarnava carries the largest share because the underlying picture is fluid pooling.

Classical Ayurveda places glaucoma under Adhimantha, the acute eye disorder named in the Sushruta Samhita Uttara Tantra and the Sharangadhara Samhita. The modern home-remedy literature pins raised intra-ocular pressure on Kapha pooling in the vitreous humor: when normal aqueous outflow is blocked, fluid accumulates and pressure rises. Punarnava's defining classical action is Shothahara (anti-edema) combined with Mutrala (diuretic), the exact pair of actions needed to drain stagnant fluid from any tissue, including the eye chambers. The name itself, Punarnava, means "that which renews", recorded for the herb's ability to restore tissue that has lost its normal function through stagnation.

Beyond the eye-pressure mechanism, Punarnava treats the root-cause network that drives glaucoma. The home-remedy literature names diabetes, hypertension, high cholesterol and triglycerides, and nicotine toxicity as upstream contributors, and Punarnava is recorded for kidney disease, heart disease, liver disorders, and edema as a renal-cardiac-hepatic Rasayana. The classical eye-disease use is also direct: traditional sources record Punarnava leaf juice with honey as an eye drop for chronic ophthalmia. The internal tea form is the safe home use; topical eye preparations are practitioner-only.

How Punarnava Helps with Glaucoma

Punarnava's energetics line up precisely with the Kapha-fluid picture behind raised intra-ocular pressure. Classical sources describe the root as bitter, with cooling potency (Sheeta Virya), pungent vipaka (Katu Vipaka), and dry, light qualities (Ruksha, Laghu Guna). The dry-light combination is what makes Punarnava such a powerful anti-edema herb: it directly counters the wet, heavy, sticky qualities of aggravated Kapha that pool fluid in tissues. The Bhavaprakash Nighantu classifies it as Kaphahara (alleviates Kapha) and Vatahara (alleviates Vata), the dual action needed for Kapha pooling with Vata-driven tension that defines the Adhimantha picture.

The classical action profile is built around fluid clearance. The Bhavaprakash Nighantu classifies Punarnava as Shothahara (reduces swelling), Mutrala (diuretic), Hridya (cardiotonic), Rasayana (rejuvenative), Deepana (kindles digestive fire), and Anulomana (carminative, restores downward Vata flow). The Charaka Samhita's dedicated edema chapter (Shvayathu Chikitsa) names Punarnava in its core anti-Shotha protocols, including the famous line that "Punarnava mixed with the above drugs taken with cow's urine relieves swelling produced by all the three dosha". This is the same mechanism applied to the eye: drain the pooled fluid, restore outflow, lower the pressure load.

Modern phytochemistry has identified Punarnavine (an alkaloid), Punarnavoside (a rotenoid), and lignans like Liriodendrin as the active constituents, with documented diuretic, anti-inflammatory, and renal-protective activity. The diuretic action reduces systemic fluid load and supports the kidney and heart, both of which are independently linked in the home-remedy literature to glaucoma risk. The anti-inflammatory action cools the Pitta layer of the optic blood channels. None of this lowers IOP the way prescribed drops do, but it addresses the systemic Kapha-Pitta state in which raised pressure develops and persists, which is why Punarnava is positioned as the lead supportive herb rather than as an acute pressure-lowering agent.

How to Use Punarnava for Glaucoma

For glaucoma, Punarnava is used as the lead herb in the classical steeped tea formula, taken internally. The topical eye-drop route (classical Punarnava leaf juice with honey) is strictly practitioner-only; never prepare and instill home-made drops into an eye without supervised Ayurvedic ophthalmology care.

Classical Anti-Glaucoma Tea

The recorded home-remedy formula is straightforward, with Punarnava as the largest ingredient:

Boil 1 teaspoon of this mixture in 1 cup of water for a few minutes, strain, and drink twice a day. The Punarnava-weighted formula targets Kapha fluid pooling first, with the nervous-system and cognitive layers as secondary support.

Dosage table

FormDoseAnupana (vehicle)Timing
Tea (3-herb formula)1 tsp mix per cup waterWater, plainTwice daily, morning and evening
Punarnava root powder (standalone, fluid clearance)1-3 gWarm waterTwice daily, before meals
Punarnava decoction (classical Kvatha)40-80 mlPlain, after preparationTwice daily
Triphala eyewash (separate)1/2 tsp Triphala in 1 cup waterCooled, double-strainedOnce daily, external eyewash

Anupana for glaucoma

Plain warm water is the standard vehicle, since Punarnava's diuretic action is supported by adequate hydration. Avoid taking it with milk or sweet drinks, which add to Kapha load. Avoid coffee, white sugar, and dairy in the wider diet.

Duration and what to expect

Punarnava's diuretic effect (more urine output, reduced morning puffiness) is typically noticed within the first week. The effect on systemic fluid balance builds over 4-6 weeks. Any change in measured intra-ocular pressure must be assessed only by an ophthalmologist on the regular schedule they set. Allow 8-12 weeks of consistent daily use, alongside the lifestyle changes below, to judge the wider effect. Continue prescribed IOP-lowering drops without interruption.

Lifestyle adjuncts (classical recommendations)

  • Strictly avoid heavy weightlifting and straining exercise.
  • Avoid inverted yoga postures: Headstand (Shirshasana) and Shoulder Stand (Sarvangasana).
  • Follow a Kapha-pacifying diet; avoid coffee, white sugar, and dairy.
  • Treat the root cause: high blood pressure, diabetes, high cholesterol, and smoking all raise IOP.

Frequently Asked Questions

Why is Punarnava the largest ingredient in the anti-glaucoma tea?

Because the underlying picture is Kapha fluid pooling in the vitreous humor, and Punarnava is Ayurveda's premier anti-edema and diuretic herb. The 5:3:3 ratio (Punarnava : Jatamansi : Shankhapushpi) puts the fluid-clearance action in the lead, with the nervous-system and cognitive layers as secondary support.

Can I take Punarnava if I am already on a diuretic for blood pressure?

Caution is required. Punarnava is itself a diuretic and may add to the effect of prescription diuretics, leading to over-dehydration or electrolyte changes. Speak to both your ophthalmologist and your prescribing physician before combining the two. Monitor blood pressure and hydration carefully if you do.

How long does Punarnava take to show any effect for glaucoma?

The diuretic effect (more urine output, less morning puffiness) is usually noticed within the first week. Any change in measured intra-ocular pressure must be assessed only by your ophthalmologist on their regular schedule. Allow 8-12 weeks of the three-herb tea, paired with the Kapha-pacifying diet, to judge the wider supportive effect.

Can I use the classical Punarnava leaf juice with honey as an eye drop at home?

No. Although classical sources record Punarnava leaf juice with honey as a topical preparation for chronic eye disease, this is a practitioner-supervised procedure with strict preparation standards. Home-made eye drops risk contamination, particle damage to the cornea, and worsening of the very pressure they are meant to help. Use the internal tea only at home.

Punarnava vs Coleus for glaucoma?

Different mechanisms. Punarnava works on systemic fluid clearance through diuretic and renal-cardiac action, addressing the upstream Kapha pooling. Coleus (Patharchur) acts more directly on smooth-muscle relaxation, including the ciliary muscle of the eye, and has documented IOP-lowering activity in modern research. Both are adjuncts to ophthalmologist care, not replacements.

Safety & Precautions

Punarnava has an excellent safety record at traditional doses and is used as a leafy vegetable (Shaka) in many parts of India. Classical texts do not describe significant toxicity. However, because it is a genuinely active diuretic, not a token one, there are several situations where caution matters.

Not for Dehydration or Dryness

Punarnava pulls fluid out of tissues. If you are already dehydrated, on fluid restriction, have low blood pressure, or present with a dry Vata picture (dry skin, constipation, cracking joints, scanty urine), Punarnava can worsen these conditions. Classical texts specifically contraindicate it in diarrhoea, because further fluid loss is the last thing the body needs.

Electrolyte Monitoring with Long-Term Use

Although Punarnava is gentler than pharmaceutical diuretics and is generally considered potassium-sparing (thanks to the potassium salts it naturally contains), any daily diuretic used for months can shift electrolyte balance. If you are taking it long-term for chronic kidney disease or heart failure, periodic monitoring of sodium, potassium, and creatinine is sensible, especially if you're also on prescription diuretics or ACE inhibitors.

Drug Interactions

  • Lithium: Any diuretic, including Punarnava, can affect lithium clearance and raise serum levels. Not recommended alongside lithium therapy without medical supervision.
  • Digoxin and other cardiac glycosides: Changes in fluid and potassium status can alter digoxin effect. Use only under supervision.
  • Furosemide, spironolactone, and other diuretics: Additive diuresis can cause dehydration. Dose reduction of one or the other is usually needed.
  • ACE inhibitors and ARBs: Punarnava may potentiate blood pressure lowering, monitor for dizziness, especially in the elderly.
  • Anti-diabetic medications: Punarnava has mild blood-sugar-lowering effects; watch for hypoglycemia if combined with insulin or sulfonylureas.
  • Sedatives, antidepressants, antiepileptics: Traditional texts advise caution due to theoretical central nervous system interactions.

Pregnancy and Nursing

Punarnava has traditional use for pregnancy-related edema in very small, food-like amounts. However, it is also classed as an emmenagogue, it can stimulate uterine activity. For this reason, therapeutic doses are best avoided in pregnancy, particularly in the first trimester and in anyone with a history of miscarriage. During nursing, use only under practitioner guidance; safer edema management options exist.

A Note on the Two Species

Classical texts carefully distinguish Rakta Punarnava (red, Boerhavia diffusa, the true Punarnava) from Shweta Punarnava (white, Trianthema portulacastrum). They have overlapping but not identical effects, and the white variety is considered more strongly purgative. Commercial supplies occasionally confuse the two. Look for products that specifically list Boerhavia diffusa as the botanical source to ensure you're getting the right herb.

Signs You're Taking Too Much

Excessive dosing can cause excessive urination, dry mouth, muscle cramps (a sign of electrolyte imbalance), light-headedness, or constipation. These resolve quickly by reducing the dose and increasing water intake. If they persist, stop and consult a practitioner.

Other Herbs for Glaucoma

See all herbs for glaucoma on the Glaucoma page.

▶ Classical Text References (4 sources)

The above two – laghu and mahat panchamoola constitute Dashamoola बलापन ु नवैर डशप ू पण वयेन तु म यमं कफवात नं ना त प तकरं सरम ् Bala, punarnava, eranda, surpaparni dvaya (masaparni and mundgaparni) together from the madhyama pancamula.

— Astanga Hridaya Sutrasthan, Annaswaroopa Food

Source: Astanga Hridaya Sutrasthan, Annaswaroopa Food

Two prasthas of ghee should be cooked with the juice dhatri (two prasthas), juice of vidari (two prasthas), sugarcane juice (two prasthas), soup of the meat of goat (two prasthas), milk (two prasthas), and the paste (one karsha each) of jivaka, rsabhaka, vira, jivanti, nagara, shati, shalaparni, prushniparni, mashaparni, mudgaparni,meda, mahameda, kakoli, kshirakakoli, kantakari, bruhati, shveta punarnava, rakta punarnava,madhuka, atmagupta, shatavari, riddhi,parushaka, bharangi, mridvika, briha

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 11: Chest Injury and Emaciation Treatment (Kshatakshina Chikitsa / क्षतक्षीणचिकित्सा)

Bala, vidari, hrasva panchamula (shalaparni, prsniparni, brihati, kantakari and gokshura), punarnava, and the sungas (terminal buds) of five kshirivrikshas (nyagrodha, udumbara, asvattha, madhuka and plaksha)- one pala of each of these drugs should be made to a decoction.

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 11: Chest Injury and Emaciation Treatment (Kshatakshina Chikitsa / क्षतक्षीणचिकित्सा)

Freshly collected and dried amalaki (ten palas), draksha (ten palas), atmagupta (ten palas), punarnava (ten palas), shatavari (ten palas), vidari (ten palas), samanga (ten palas), pippali (ten palas), nagara (eight palas), madhuyashti (one palas), saurvachala (one pala) and maricha (two palas) – all these drugs should be made to powders.

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 11: Chest Injury and Emaciation Treatment (Kshatakshina Chikitsa / क्षतक्षीणचिकित्सा)

Mixture of haritaki, dried ginger and devadaru taken with lukewarm water, or punarnava mixed with all the above drugs taken with cow‘s urine relieves swelling produced by all the three dosha.

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 12: Edema Treatment (Shvayathu Chikitsa / श्वयथुचिकित्सा)

The 500 ml of milk prepared with paste of 10 gm each punarnava, dried ginger and mustaka;

— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 12: Edema Treatment (Shvayathu Chikitsa / श्वयथुचिकित्सा)

Source: Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 11: Chest Injury and Emaciation Treatment (Kshatakshina Chikitsa / क्षतक्षीणचिकित्सा); Chikitsa Sthana — Therapeutic Principles, Chapter 12: Edema Treatment (Shvayathu Chikitsa / श्वयथुचिकित्सा)

Rasna Saptaka Kvatha: Rasna (Pluchea lanceolata), Dashamula (ten roots), Gokshura (Tribulus terrestris), Atibala (Abutilon indicum), Punarnava (Boerhavia diffusa), and Guduchi (Tinospora cordifolia) — these seven constitute the excellent decoction known as Rasna Saptaka.

— Sharangadhara Samhita, Madhyama Khanda, Chapter 1: Svarasadikalpana (Svarasa, Kalka, Kvatha, etc.)

Punarnavadi Kvatha: Punarnava (Boerhavia diffusa), Nimba (Azadirachta indica), Vasa (Adhatoda vasica), Patola (Trichosanthes dioica), Nidigdhika (Solanum xanthocarpum), Katuki (Picrorhiza kurroa), Guduchi (Tinospora cordifolia), Shunthi (dry ginger), and Daruharidra (Berberis aristata) — this decoction alleviates Kapha disorders.

— Sharangadhara Samhita, Madhyama Khanda, Chapter 2: Kvathakalpana (Decoction Preparations)

Also: Mudgaparni (Phaseolus trilobus), Mashaparni (Teramnus labialis), Vidari (Pueraria tuberosa), Punarnava (Boerhaavia diffusa), the two Kakolis — Kakoli and Kshira-Kakoli, Kamala (Nelumbo nucifera), the two Medas — Meda and Mahameda, Sukshmaila (Elettaria cardamomum), Agaru (Aquilaria agallocha), and Chandana (Santalum album).

— Sharangadhara Samhita, Madhyama Khanda, Chapter 8: Avalehakalpana (Confection/Electuary Preparations)

Also: tender shoots of Ashvattha (Ficus religiosa), Padmabija (lotus seeds — Nelumbo nucifera), Punarnava (Boerhaavia diffusa), fruits of Kashmarya (Gmelina arborea), and Masha seeds (black gram — Vigna mungo).

— Sharangadhara Samhita, Madhyama Khanda, Chapter 9: Snehakalpana (Oleaginous Preparations - Ghrita and Taila)

A paste (Pralepa) made by grinding Punarnava (Boerhavia diffusa), Daru (Cedrus deodara), Shunthi (dry ginger, Zingiber officinale), Siddharta (white mustard, Sinapis alba), and Shigru (Moringa oleifera) with Kanji (fermented rice water) conquers all types of swelling (Shotha).

— Sharangadhara Samhita, Uttara Khanda, Chapter 11: Lepa Vidhi (Topical Paste Application)

Source: Sharangadhara Samhita, Madhyama Khanda, Chapter 1: Svarasadikalpana (Svarasa, Kalka, Kvatha, etc.); Madhyama Khanda, Chapter 2: Kvathakalpana (Decoction Preparations); Madhyama Khanda, Chapter 8: Avalehakalpana (Confection/Electuary Preparations); Madhyama Khanda, Chapter 9: Snehakalpana (Oleaginous Preparations - Ghrita and Taila); Uttara Khanda, Chapter 11: Lepa Vidhi (Topical Paste Application)

Ashwagandha (Withania somnifera), Shringi, Sariva (Indian sarsaparilla), Punarnava (Boerhavia diffusa), Sahe, and Vidari (Pueraria tuberosa) -- decoctions of these are beneficial for sprinkling.

— Sushruta Samhita, Uttara Tantra, Chapter 31: Revatipratishedha

Shatavari, black sesame, madhuka, blue lotus, durva (Bermuda grass), and punarnava should be properly applied as poultice.

— Sushruta Samhita, Uttara Tantra, Chapter 26: Chapter 26

They are as follows: The Vidarigandhadi Gana consists of: vidari-gandha, vidari, vishvadeva, sahadeva, sahadevi, sariva (Indian sarsaparilla), krishnasariva, jivaka, rishabhaka, mahasaha, kshudrasaha, two brihatis, punarnava, eranda (castor), hansapadi, vrishchikali, and rishabhi (verse 4).

— Sushruta Samhita, Sutra Sthana, Chapter 38: Dravyasangrahaniya Adhyaya - On the Collection of Drugs

The Vata-pacifying group includes: bhadradaru, kushtha, turmeric, varuna, mesha-shringi, bala, atibala, artagala, kachchura, shallaki, kuberachi, virataru, sahachara, agnimantha, vatsadani, eranda, ashmabhedaka, kalakarka, shatavari, punarnava, vasuka, vashiraka, achchhanaka, bhargi, karpa, sivrishchikali, pattura, badara, yava, kola, kulattha, and others from the Vidarigandhadi group (verse 7).

— Sushruta Samhita, Sutra Sthana, Chapter 39: Shodhanasanshmaniya Adhyaya - On Purification and Pacification

They are as follows: The Vidarigandhadi Gana consists of: vidari-gandha, vidari, vishvadeva, sahadeva, sahadevi, sariva (Indian sarsaparilla), krishnasariva, jivaka, rishabhaka, mahasaha, kshudrasaha, two brihatis, punarnava, eranda (castor), hansapadi, vrishchikali, and rishabhi (verse 4).

— Sushruta Samhita, Dravyasangrahaniya Adhyaya - On the Collection of Drugs

Source: Sushruta Samhita, Uttara Tantra, Chapter 31: Revatipratishedha; Uttara Tantra, Chapter 26: Chapter 26; Sutra Sthana, Chapter 38: Dravyasangrahaniya Adhyaya - On the Collection of Drugs; Sutra Sthana, Chapter 39: Shodhanasanshmaniya Adhyaya - On Purification and Pacification; Dravyasangrahaniya Adhyaya - On the Collection of Drugs

Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.