Clinacanthus Nutans (Clinacanthus nutans): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Clinacanthus nutans work in the body?

Clinacanthus nutans contains bioactive compounds including monoglycerides, flavone glycosides, sulfur compounds, and phytol that contribute to its medicinal effects. These compounds demonstrate anti-inflammatory, antiviral, and immunomodulatory properties in laboratory studies. The monoglycerides and sulfur compounds appear to inhibit viral replication, while flavone glycosides provide antioxidant activity. However, human clinical trials confirming these mechanisms are limited. Current evidence is Grade C, meaning more research is needed to fully understand how this herb works in the human body.

Does Clinacanthus nutans interact with chemotherapy drugs?

Yes, Clinacanthus nutans may interact with chemotherapy medications and is contraindicated during cancer treatment. The herb possesses immunomodulatory and antioxidant properties that could theoretically interfere with how certain chemotherapy drugs work, potentially reducing their effectiveness or altering side effects. Patients undergoing chemotherapy should avoid this herb unless specifically approved by their oncologist. Always inform your healthcare provider about all herbal supplements to prevent harmful drug interactions during cancer treatment.

What is the recommended dosage for Clinacanthus nutans?

Traditional use suggests consuming Clinacanthus nutans leaves as a tea, drinking 3 to 5 cups daily, or as fresh juice extracted from the leaves. However, no standardized, clinically validated dosage has been established through human trials. Evidence level is Grade C, meaning dosing recommendations are based primarily on traditional use rather than rigorous clinical studies. Start with lower amounts to assess tolerance, and consult a qualified healthcare practitioner for personalized dosing guidance.

Is Clinacanthus nutans safe during pregnancy?

No, Clinacanthus nutans is considered unsafe during pregnancy. This herb has been traditionally used for its potent medicinal properties, but insufficient safety data exists for pregnant women. The active compounds may stimulate uterine contractions or affect fetal development. Women who are pregnant, planning to become pregnant, or breastfeeding should avoid this herb entirely. Always consult a qualified healthcare provider before using any herbal supplements during pregnancy or while nursing.

Can Clinacanthus nutans help treat herpes infections?

Clinacanthus nutans has been used traditionally in Thai and Malaysian medicine for treating skin conditions including herpes. Some preliminary laboratory and small clinical studies suggest potential antiviral activity against herpes simplex virus, with topical applications showing promise for lesion healing. However, evidence level remains Grade C, meaning findings are not yet conclusive from large-scale human trials. This herb should not replace prescribed antiviral medications without medical supervision and proper guidance.

What are the side effects of taking Clinacanthus nutans?

Clinacanthus nutans may cause nausea at high doses and mild digestive upset in some individuals. These gastrointestinal effects are generally dose-dependent and often resolve with reduced intake. People with autoimmune diseases should avoid this herb due to its potential immunomodulatory effects, which could worsen autoimmune conditions. As with any herbal supplement, product quality and purity can affect safety. Discontinue use if adverse reactions occur and consult a healthcare professional.

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Clinacanthus nutans, also known as Sabah snake grass, is a medicinal plant endemic to Southeast Asia with documented antioxidant, anti-inflammatory, and antiviral properties [PMID:28198202, PMID:37445964].

Background

Clinacanthus nutans (Burm.f) Lindau is a member of the Acanthaceae family endemic to Southeast Asia [PMID:28198202, PMID:28253196]. It is commonly referred to as "Sabah Snake Grass" or "Belalai Gajah" [PMID:28253196, PMID:33092571].

Traditional uses

Traditionally used to treat snake bites, insect bites, skin rashes, burns, scalds, herpes infections, diabetes, dysentery, and various types of cancer [PMID:28198202, PMID:34135980, PMID:27086161].

Active compounds

Phytochemicals include flavonoids (such as schaftoside, isoorientin, orientin, isovitexin, and vitexin), terpenoids, alkaloids, phenolic acids, saponins, glycosides, steroids (including β-sitosterol), and tannins [PMID:35684542, PMID:38939094, PMID:36222757, PMID:30105077].

Mechanism of action

The herb modulates pathways related to oxidative stress and inflammation, specifically targeting the Toll-like receptor 4 (TLR4)-NF-κB pathway and the Nrf2/HO-1 antioxidant defense pathway [PMID:35684542, PMID:33244664, PMID:42224441]. It may also interfere with the entry, penetration, infection, and replication of viruses [PMID:37445964].

Clinical evidence

Evidence BCondyloma Acuminata

C. nutans cream showed a median clearance rate of 82%, compared to 97% for podophyllin [PMID:35783521]

Evidence DDiabetes (Animal Model)

Leaf extract significantly reduced fasting blood glucose and pancreatic β-cell apoptosis by inhibiting JNK activation [PMID:38549571]

Evidence DInflammation (In Vitro)

Extract reduced expression of pro-inflammatory cytokines IL6, IL8, and CXCL10 in gingival fibroblast cells under high-glucose conditions [PMID:39193343]

Evidence DViral Infections (In Vitro)

Exhibits virucidal activities against HSV-1, HSV-2, VZV, and potentially SARS-CoV-2 [PMID:37445964, PMID:33949277]

Safety & adverse effects

Toxicity studies indicate that extracts from this plant did not show any toxicity [PMID:27086161].

Evidence summary

The current evidence is primarily based on in vitro studies, animal models, and a small randomized controlled trial for condyloma acuminata. While pharmacological potential is high, clinical validation in humans is limited.

PubMed sources

1.PMID: 28198202 (2017) — Clinacanthus nutans: a review on ethnomedicinal uses, chemical constituents and pharmacological properties. · Pharmaceutical biology
2.PMID: 34135980 (2021) — Recent Advancement in Anticancer Activity of Clinacanthus nutans (Burm. f.) Lindau. · Evidence-based complementary and alternative medicine : eCAM
3.PMID: 37445964 (2023) — Antiviral and Immunomodulatory Activities of Clinacanthus nutans (Burm. f.) Lindau. · International journal of molecular sciences
4.PMID: 35684542 (2022) — Anti-Inflammatory Effects of Phytochemical Components of Clinacanthus nutans. · Molecules (Basel, Switzerland)
5.PMID: 28253196 (2017) — Cytotoxicity and cytochrome P450 inhibitory activities of Clinacanthus nutans. · Drug metabolism and personalized therapy

Clinacanthus Nutans

Sources & Citations

Calculate a safe dose of Clinacanthus Nutans