Andrographis paniculata
What's the taxonomical classification of Andrographis paniculata?
Andrographis paniculata belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Its taxonomic hierarchy continues through the class Equisetopsida and the subclass Magnoliidae, eventually reaching the order Lamiales. This plant is a member of the family Acanthaceae, which contains the genus Andrographis, and is specifically identified by its species name, paniculata.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Acanthaceae |
| Genus | Andrographis |
| Species | paniculata |
What are the morphological characteristics of this plant?
Andrographis paniculata has an erect, herbaceous structure characterized by square stems that can reach heights of up to 60 centimeters. The leaves are arranged oppositely along the stem and possess an ovate or lanceolate shape with entire margins. Small, white flowers emerge from the axils, often featuring delicate purple spots on the lower petals. The plant produces elongated, slender capsules that contain numerous tiny, brownish seeds upon maturity. These morphological traits distinguish it from other species within the Acanthaceae family.
What is the geographical distribution of this plant?
This plant is native to the tropical and subtropical regions of South and Southeast Asia, including countries such as India, China, Thailand, and Vietnam. It thrives in various environments ranging from open fields and forest edges to disturbed sites along roadsides. The species is commonly found in moist, shady areas where the soil remains relatively damp. Because of its hardy nature, it has naturalized in several other tropical climates outside of its original range. Its distribution is largely dictated by the availability of warm temperatures and seasonal rainfall.
How is this plant cultivated?
This plant, commonly known as king of bitters, thrives in tropical and subtropical climates when grown in well-drained, loamy soil with consistent moisture and partial shade.
It is typically cultivated from seeds sown during the onset of the rainy season to ensure adequate hydration for germination. Farmers must maintain a temperature range between 25 and 35 degrees Celsius to promote vigorous vegetative growth. Regular weeding and minimal fertilization are usually sufficient since the species is naturally hardy.
Once the plant reaches maturity, the leaves and stems are harvested for their medicinal properties.
What parts of this plant are used medicinally?
Andrographis paniculata contains medicinal compounds primarily concentrated in its entire green aerial portion, which includes the leaves, stems, and flowers. While the leaves are the most frequently harvested part for extracting bioactive diterpene lactones, the whole plant is often used in traditional preparations. These components are typically processed into powders, capsules, or aqueous extracts to harness their therapeutic properties. The bitter compounds found throughout these vegetative structures are believed to provide the plant's signature health benefits. Consequently, most pharmaceutical and herbal applications focus on the dried biomass of the above-ground sections.
What are the pharmacological activities of Andrographis paniculata?
This plant has potent anti-inflammatory, anti-bacterial, anti-viral, anti-malarial, and hepatoprotective pharmacological activities. Its bioactive compounds work to suppress systemic inflammation and inhibit the growth of various bacterial pathogens. Researchers have also demonstrated its ability to combat viral infections and reduce the severity of malaria symptoms. Furthermore, the plant provides significant hepatoprotective benefits by shielding liver cells from chemical damage and oxidative stress. These diverse medicinal properties make it a highly valuable subject for modern drug development.
According to a study published by "Journal of natural products", Andrographis paniculata is a medicinal plant possessing anti-inflammatory properties. A labdane-type diterpenoid identified from the plant, 14-deoxy-11,12-didehydroandrographolide (ddA), was found to inhibit human TRPV3 in stably expressing CHO and HaCaT keratinocytes. This compound acts selectively among other TRP channels implicated in itch and inflammation and does not show toxicity to HaCaT cells. In scratching behavior models on ICR mice, ddA suppressed itch induced by the TRPV3 activator carvacrol. Furthermore, ddA potently suppressed histamine-induced itch with an efficacy comparable to loratadine.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-cancer
- anti-viral
- anti-diabetic
- hepatoprotective
What medicinal compounds this plant contains?
This plant contains several bioactive diterpene lactones including andrographolide, neoandrographolide, andrographiside, bisandrographolide A, and deoxyandrographiside. These specific chemical constituents are primarily responsible for the plant's significant anti-inflammatory and antimicrobial properties. Andrographolide serves as the most prominent compound studied for its ability to modulate immune responses. Other derivatives like bisandrographolide A contribute to the complex pharmacological profile that characterizes the species. Together, these medicinal compounds provide the basis for various therapeutic applications in traditional and modern medicine.
According to a study published by "Journal, genetic engineering & biotechnology", the plant Andrographis paniculata contains andrographolide largely present in its leaf extracts. This compound is known to exhibit antiviral and antibacterial properties and stabilizes Th1/Th2/Th17 responses. In silico docking results showed andrographolide has a very strong affinity for the RBD with a dock score of -10.3460. Additionally, the compound showed a dock score of -10.7313 for the NSP12 molecule. These properties suggest that the Andrographis paniculata extract can be tested as an anti-coronaviral drug.
The primary medicinal compounds of this plant are shown in the list below.
- Andrographolide
- Neoandrographolide
- Andrographiside
- Bisandrographolide A
- Andrographidine C
What health conditions is this plant used for?
This plant is used for treating fever, inflammation, liver diseases, cancer, and managing symptoms related to COVID-19. Its bioactive compounds possess potent immunomodulatory properties that help the body fight various infections. Researchers have studied its potential to reduce systemic inflammation and protect hepatic cells from damage. Additionally, certain extracts are being investigated for their ability to inhibit the growth of specific cancer cells. The plant also shows promise in supporting respiratory health during viral outbreaks like COVID-19.
According to a study published by "Scientific reports", the plant Andrographis paniculata is used in the Jwarahara Kwatha Choornam formulation, which is traditionally used for managing chronic fever, cold, and malaria. This formulation offers therapeutic benefits such as enhancing digestion, stimulating appetite, detoxifying blood, modulating the immune response, and providing protection against common bacterial infections. During the COVID-19 pandemic, the formulation was reported to have a supportive role in treatment. The plant contains the bioactive marker Andrographolide (AG), which was quantified at 3.638 ± 0.0234 mg/g in the JKC preparation. The analytical method used to study these components achieved distinct Rf values for five markers, including an Rf of 0.563 ± 0.005 for AG.
The main health conditions this plant is used for are shown in the list below.
- COVID-19
- Dengue virus
- Influenza
- Malaria
- SARS-CoV-2
What are the herbal preparations of this plant?
This plant can be prepared as an infusion, decoction, tincture, powder, capsule, or extract to utilize its medicinal properties. An infusion or decoction involves steeping or boiling the dried leaves in hot water to create a therapeutic tea. For more concentrated doses, a tincture uses alcohol to pull out active compounds, while a powder consists of the finely ground dried plant material. Capsules provide a convenient way to ingest the powder, whereas an extract offers a highly standardized concentration of the plant's phytochemicals. These various forms allow for flexible administration depending on the intended health benefit.
The main herbal preparations of this plant are shown in the list below.
- Infusion
- Decoction
- Tincture
- Powder
- Capsule
- Extract
What side effects this plant can have?
This plant can cause a variety of adverse reactions including nausea, diarrhea, vomiting, abdominal pain, gastric upset, dizziness, headache, allergic reactions, and skin rash. Many individuals consuming Andrographis paniculata report gastrointestinal distress such as stomach aches or digestive irregularities. Neurological symptoms like lightheadedness or head pain may also occur during treatment. Some users might experience dermatological issues such as a localized skin rash. Furthermore, people with sensitivities may suffer from broader allergic reactions to the plant's compounds.
The main side effects this plant can have are shown in the list below.
- Nausea
- Diarrhea
- Vomiting
- Abdominal pain
- Gastric upset
- Dizziness
- Headache
- Allergic reactions
- Skin rash