Age Ayurveda Nighantu

Kshavaka

Amaranthus spinosus L.

Kshavaka (Amaranthus spinosus L.) is a plant used in Ayurveda, from the Amaranthaceae family. Diuretic activity validated through pharmacological studies supporting traditional Ayurvedic use for Mutrakrichchhra (dysuria) and urinary disorders Anti-inflammatory and wound healing properties confirmed in preclinical models, supporting traditional topical use for skin conditions and wound management

Key facts
Botanical nameAmaranthus spinosus L.
FamilyAmaranthaceae · other entries in this family
OrderCaryophyllales
Pharmacopoeia statusNot listed in WHO monographs on medicinal plants; Amaranthus genus recognized as nutritionally important by FAO; Kshavaka identity remains debated in Ayurvedic pharmacognosy
Taxon identifiersGBIF 5384401 · Wikidata Q2881023 · NCBI Taxonomy 124765

Names and identification

LanguageName
EnglishKshavaka
Latin/BotanicalAmaranthus spinosus L.

Key Phytochemical Constituents

How does it work?

  • Amaranthine and betalain pigments exert antioxidant effects through electron donation and metal chelation, protecting cellular membranes from lipid peroxidation-induced damage
  • Rutin and quercetin glycosides inhibit COX-2, LOX, and phospholipase A2, reducing prostaglandin and leukotriene synthesis for anti-inflammatory and analgesic effects
  • Saponins exhibit diuretic activity through inhibition of renal tubular sodium reabsorption, increasing urine output and supporting traditional use for urinary disorders

Which traditional uses are supported by research?

  • Diuretic activity validated through pharmacological studies supporting traditional Ayurvedic use for Mutrakrichchhra (dysuria) and urinary disorders
  • Anti-inflammatory and wound healing properties confirmed in preclinical models, supporting traditional topical use for skin conditions and wound management

What do recent clinical trials show?

2 further claims previously listed here could not be traced to a published paper and have been removed. An absence here means we could not identify the source, not that no work exists.

Recent safety updates

  • Note: Botanical identity of Kshavaka is debated in Ayurvedic literature; association with Amaranthus spinosus is one interpretation. Some texts link it to emetic herbs used in Vamana therapy
  • Amaranthus spinosus leaves are consumed as a vegetable in many cultures with general dietary safety; however, high oxalate content may contribute to kidney stone risk in susceptible individuals
  • Spiny nature of the plant requires careful handling; no significant systemic toxicity reported at standard doses in animal studies

What is it made of?

Key Active Markers

  • Sitosterol
  • Stigmasterol
  • Rutin
  • Quercetin
  • Kaempferol
  • Glycosides
  • Saponins
  • Amaranthine

Analytical Methods: HPLC fingerprinting, TLC (identity), LC-MS/MS (marker quantification)

Dosage forms and preparation

Dosage Forms: Churna (fine powder for Nasya), Nasya (nasal insufflation), Dhoompana (medicated smoking), Kashayam (decoction), Capsule

Standard Dosage: Nasya: pinch of fine powder (125-250 mg) per nostril; 2-3 g powder orally twice daily; 30-50 mL decoction

Bioavailability: Nasal administration provides direct absorption through nasal mucosa bypassing first-pass metabolism — rapid onset of action within 5-15 minutes. Oral bioavailability of alkaloids is moderate. Sneeze-inducing (errhine/sternutatory) compounds are active at very low nasal doses. Absorption enhanced by Nasya oil pre-treatment (Anu Taila lubrication of nasal passages).

Optimal Timing: Nasya: morning on empty stomach after oil massage of face (classical Poorvakarma); oral preparations: after meals

Standardized Extract: Ultra-fine powder (Vastra Galita grade, <75 micron particle size) standardized for sternutatory activity; oral extract to minimum 2% total alkaloids

Shelf Life: 12 months for Nasya powder (fine particle size increases surface area and degradation); 24 months for oral powder; 18 months for capsules

Storage: Nasya powder in small, tightly sealed glass vials with desiccant. Oral preparations in airtight containers at 15-30°C. Protect from moisture — hygroscopic fine powders degrade rapidly.

Marker Compounds: Alkaloids (specific profile varies by species identification), Essential oil constituents, Saponins, Tannins

Extraction Methods

  • Fine grinding (Vastra Galita — cloth-filtered ultra-fine powder) for Nasya
  • Hydroalcoholic extraction (50-60% ethanol)
  • Water decoction for oral use
  • Steam distillation for volatile fraction

Synergistic Combinations

  • Maricha (Black pepper) for Shirovirechana (nasal cleansing)
  • Vacha (Acorus calamus) for nasal and cognitive formulations
  • Vidanga for parasitic and congestive conditions
  • Apamarga for Nasya combinations in sinusitis

Published research

Literature indexed in PubMed that concerns this subject, grouped by study type. A paper appearing here is a record of what has been published, not evidence that the subject works, and laboratory or animal results do not transfer to people. Study titles link to PubMed so you can read the source rather than take our word.

Other clinical studies and reviews1

  1. Madadi E, Mazloum-Ravasan S, Yu JS and others. 2020. Therapeutic Application of Betalains: A ReviewPlants (Basel, Switzerland). PMID 32957510 · doi:10.3390/plants9091219

Laboratory and animal studies11

  1. Gebeş ES, Yalçın S, Ramay MS and others. 2024. Suitability of raw and heat-treated Amaranthus spinosus in broiler diets: Effects on growth performance, meat antioxidant capacity, haemato-biochemical parameters, intestinal histomorphometry, and cecal volatile fatty acid profileTropical animal health and production. PMID 39126450 · doi:10.1007/s11250-024-04099-4
  2. Patalinghug JMR, Padayao MHRA, Angeles IP Jr and others. 2022. Bioactivity of Amaranthus spinosus L. leaf extracts and meals against Aeromonas hydrophilaAccess microbiology. PMID 35355878 · doi:10.1099/acmi.0.000305
  3. Prince MRU, Zihad SMNK, Ghosh P and others. 2021. Amaranthus spinosus Attenuated Obesity-Induced Metabolic Disorders in High-Carbohydrate-High-Fat Diet-Fed Obese RatsFrontiers in nutrition. PMID 34041259 · doi:10.3389/fnut.2021.653918
  4. Huang Y, Xi Y, Gan L and others. 2019. Effects of lead and cadmium on photosynthesis in Amaranthus spinosus and assessment of phytoremediation potentialInternational journal of phytoremediation. PMID 31020865 · doi:10.1080/15226514.2019.1594686
  5. Sarker U, Oba S. 2019. Nutraceuticals, antioxidant pigments, and phytochemicals in the leaves of Amaranthus spinosus and Amaranthus viridis weedy speciesScientific reports. PMID 31892700 · doi:10.1038/s41598-019-50977-5
  6. Ravelo EE, Vaca JU, Arévalo EP and others. 2018. Presence and Distribution of Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) in ColombiaJournal of insect science (Online). PMID 30260452 · doi:10.1093/jisesa/iey092
  7. Abid M, Gosh AK, Khan NA. 2017. In Vivo Psychopharmacological Investigation of Delphinium Denudatum and Amaranthus Spinosus Extracts on Wistar RatsBasic and clinical neuroscience. PMID 29942433 · doi:10.29252/NIRP.BCN.8.6.503
  8. Aiswarya Devi S, Harshiny M, Udaykumar S and others. 2017. Strategy of metal iron doping and green-mediated ZnO nanoparticles: dissolubility, antibacterial and cytotoxic traitsToxicology research. PMID 30090548 · doi:10.1039/c7tx00093f
  9. Ashok Kumar BS, Lakshman K, Velmurugan C and others. 2014. Antidepressant activity of methanolic extract of amaranthus spinosusBasic and clinical neuroscience. PMID 25436078
  10. Zeashan H, Amresh G, Singh S and others. 2009. Hepatoprotective and antioxidant activity of Amaranthus spinosus against CCl4 induced toxicityJournal of ethnopharmacology. PMID 19465104 · doi:10.1016/j.jep.2009.05.010
  11. Stintzing FC, Kammerer D, Schieber A and others. 2004. Betacyanins and phenolic compounds from Amaranthus spinosus L. and Boerhavia erecta LZeitschrift fur Naturforschung. C, Journal of biosciences. PMID 15018042 · doi:10.1515/znc-2004-1-201

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