ฟ้าทะลายโจร (Fah Talai Jone) / Green Chiretta
Family: Acanthaceae
Andrographis paniculata, known in Thai as ฟ้าทะลายโจร (Fah Talai Jone), is a powerful medicinal herb recognized for its antiviral and immune-enhancing properties. It is one of the cornerstone plants of Thai traditional medicine and is included in the country’s official list of essential herbal remedies.
Botanical Characteristics
This erect annual herb grows 30–100 cm tall with slender, green stems and lance-shaped leaves. The small white flowers have purple markings and develop into narrow capsules containing yellow-brown seeds. It thrives in tropical climates and prefers moist, well-drained soil with partial sunlight.
Traditional Medicinal Uses
Used for centuries across Asia, ฟ้าทะลายโจร is traditionally prescribed to treat fever, sore throat, cold, and flu symptoms. Its intense bitterness is associated with cleansing heat and infection from the body. The herb is also used for digestive issues, liver detoxification, and inflammatory conditions.
Medicinal Compounds
The main active compound, andrographolide, exhibits strong anti-inflammatory, antiviral, and immunomodulatory effects. Clinical research supports its use for shortening the duration of upper respiratory tract infections and reducing fever without harmful side effects.
Preparation and Dosage
The leaves and stems are typically dried and brewed into tea or ground into powder for capsules. In Thai traditional medicine, it is often combined with other cooling herbs to balance body heat and prevent recurrence of illness.
Cultivation Notes
Andrographis paniculata is easy to cultivate in tropical climates. It prefers full sun to light shade and well-drained soil. The plant should be harvested before flowering for maximum potency. Regular pruning encourages new growth and prolongs its productivity throughout the season.
Disclaimer: This information is provided for educational and historical purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional before using any herbal preparation.
