Hritpatri (Digitalis): An Ayurvedic & Toxicological Overview
Hritpatri (Digitalis): An Ayurvedic & Toxicological Overview
In the varst world of medicinal plants, Hritpatri, commonly known as Digitalis, holds a unique and powerful position.
Revered in Ayurveda for its Hridya (heart-acting) properties and recognized in modern medicine as a potent cardiac drug-and poison, this plant is a classic example of how dosage and knowledge determine whether a substance heals or harms .
This blog explores Hritpatri from Ayurvedic, botanical, and toxicological perspectives, making it especially useful for students, practitioners, and curious readers interested in Agadatantra and modern toxicology .
And Important for BAMS 2nd year students
Hritpatra (Digitalis)
- Family - Scrophulariaceae
- Latin name -Digitalis purpurea
- Type of poison -
- Ayurveda - Upavisha
- Modern - Cardiac poison
- Toxic part - Whole plant is poisonous, leaves are more poisonous
- Synonyms -
- Sanskrit - Dhumrapushpi, Tilpushpi, Hrutpatri.
- English names - Lady's glove, purple foxglove.
- Hindi name - Tilpushpi
Morphology
- Herb - Small evergreen herb.
- Leaves - alternate.
- Flower - Glove shaped
- Stem: Erect, stout & 1–2 m tall.
- Fruit/Seeds: Small, brown
capsule that splits into two halves, containing numerous tiny seeds.
Rasa Panchaka
Rasa: Tikta
Guna: Laghu ,Ruksha
Virya: Ushna
Vipaka: Katu
Prabhava: Hridya
Active principles:
Digitoxin, Digitalin, Digoxin.
Prabhav (Action)
Its chemical compounds (glycosides) directly
affect the cardiac muscles, slowing down the heart
rate to the extent that cardiac blockage occurs.
Doshaghna
Kaphaghna, Vataghna, Pitta vardhak
Formulation
- Hritpatri churna
Toxicity
Due to the presence of the cardiac glycoside digitoxin, the leaves,
flowers and seeds of this plant are all poisonous to humans and some animals and can be fatal if ingested.
The main toxins in Digitalis are the two chemically similar cardiac glycosides: digitoxin and digoxin.
Like other cardiac glycosides,
these toxins exert their effects by inhibiting the ATPase activity of a complex of transmembrane proteins that form the sodium
potassium ATPase pump, (Na/K-ATPase).
Inhibition of the Na/K-ATPase in turn causes a rise not only in intracellular Na, but also in calcium, which in turn results in increased force of myocardial muscle contractions.
Signs and Symptoms of Poisoning
- Nausea, Vomiting
- Severe burning and pain in the abdomen
- Bradycardia
- Fainting, weakness
- Headache
- Confusion, dizziness
- Loss of consciousness
- Convulsions , Coma
- Death from Ventricular Fibrillation
Fatal Dose
- Part used - Dried Leaf
- Dose - 2.5 mg of powder leaf.
- Digitalis — 2-3 gm
- Digoxin — 5 mg
- Digitalin — 15-20 mg
Fatal period
- 1 - 2 hours
Treatment
- Monitor the patient using ECG during treatment.
- Gastric lavage with tannic acid solution.
- Use of activated charcoal.
- Inducing vomiting.
- Administration of potassium chloride in case of
- bradycardia.
- Lignocaine 100 mg IV or Novocaine as an antidote.
- Atropine 0.6 mg IV for bradycardia.
- Symptomatic treatment.
Postmortem Findings
- No specific signs or symptoms.
- Erosion of the gastric mucosa.
- Seeds or fragments of leaves may be found in the stomach.
Medico-legal Aspects
- Mostly: Accidental
- Rarely: Homicidal
Disclaimer: This post is for educational purposes only and is based on academic presentation materials. Digitalis is a potent poison; never attempt to self-medicate with this plant.


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