# Toothache Plant

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/toothache-plant
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-15
**Evidence Score:** 4 / 10
**Category:** Flower
**Also Known As:** Acmella oleracea, Spilanthes acmella, jambu, para cress, buzz buttons

## Overview

Toothache Plant (Acmella oleracea) contains spilanthol, an N-alkylamide that provides analgesic effects by inhibiting inducible nitric oxide synthase (iNOS) and suppressing [inflammatory](/ingredients/condition/inflammation) cytokines IL-1β, IL-6, and TNF-α. The compound demonstrates potent anesthetic properties through NF-κB pathway inhibition and cyclooxygenase-2 suppression.

## Health Benefits

- **Alleviates oral pain**: and discomfort through its potent analgesic and anesthetic compounds, such as spilanthol.
- **Enhances immune resilience**: via its [antimicrobial](/ingredients/condition/immune-support) and antiviral activities, protecting against various infections.
- **Reduces systemic [inflammation](/ingredients/condition/inflammation),**: offering support for joint pain and inflammatory conditions.
- **Supports [digestive health](/ingredients/condition/gut-health)**: by promoting salivation and aiding in gut detoxification.
- **Stimulates [collagen production](/ingredients/condition/skin-health)**: and promotes wound healing, contributing to skin vitality.
- **Modulates [stress response](/ingredients/condition/stress)**: and supports [cognitive](/ingredients/condition/cognitive) clarity through its adaptogenic effects.
- **Soothes respiratory discomfort**: by clearing sinus congestion and alleviating sore throats.

## Mechanism of Action

Spilanthol, the primary N-alkylamide compound, inhibits inducible nitric oxide synthase (iNOS) expression and prevents NF-κB nuclear localization, effectively suppressing proinflammatory cytokines including IL-1β, IL-6, and TNF-α. The compound reduces myeloperoxidase activity in neutrophilic inflammation and dose-dependently blocks nitric oxide production in macrophages by decreasing cyclooxygenase-2 mRNA and protein expression. Additional bioactive compounds include flavonoids that inhibit [prostaglandin](/ingredients/condition/inflammation) synthesis and various terpenes contributing to [antimicrobial](/ingredients/condition/immune-support) activity.

## Clinical Summary

Current evidence is limited to in vitro and animal studies, with no published human clinical trials providing quantified therapeutic outcomes. Laboratory studies demonstrate that hexane and chloroform extracts suppress nitric oxide production in stimulated macrophages by 72-85% at 80 mcg/mL concentrations. Isolated spilanthol reduced nitric oxide by 60% at 90 μM and 20% at 360 μM in controlled experiments. While traditional use and preclinical data support oral pain relief applications, human clinical trials are essential to establish safety profiles and therapeutic efficacy.

## Nutritional Profile

- Dietary Fiber
- Vitamin C
- Calcium
- Magnesium
- Potassium
- Spilanthol (analgesic, [antimicrobial](/ingredients/condition/immune-support), [anti-inflammatory](/ingredients/condition/inflammation))
- Alkylamides (immune-modulating, [adaptogen](/ingredients/condition/stress)ic)
- Flavonoids (Luteolin, Apigenin)
- Tannins

## Dosage & Preparation

- Common forms: Fresh flowers (chewed), dried leaves (tea), powdered extract (supplements), topical applications (oral care, skincare).
- Traditional use: Chew 1-2 fresh flowers for immediate oral relief.
- Tea preparation: Brew 1-2 teaspoons of dried leaves in hot water.
- Recommended dosage: 500-1000 mg of powdered extract daily for systemic benefits.
- Topical application: Use formulations with 1-2% spilanthol concentration.

## Safety & Drug Interactions

Animal embryo studies indicate potential teratogenic activity from spilanthol metabolites, warranting caution during pregnancy. Spilanthol significantly inhibits cytochrome P450 enzyme CYP2E1 in vitro, potentially affecting [metabolism](/ingredients/condition/weight-management) of anesthetics like isoflurane and sevoflurane, though clinical relevance remains unknown. High-dose animal studies suggest possible interference with antiandrogen medications (bicalutamide, flutamide, abiraterone) by elevating [testosterone](/ingredients/condition/hormonal), FSH, and LH levels in male subjects. No major contraindications are established, but pregnant women and patients taking interacting medications should exercise caution.

## Scientific Research

Research indicates that Toothache Plant contains spilanthol, a compound with documented analgesic, [anti-inflammatory](/ingredients/condition/inflammation), and antimicrobial properties, primarily explored in in vitro and animal studies. These studies support its traditional uses for oral health and [immune support](/ingredients/condition/immune-support). Further human clinical trials are warranted to confirm efficacy and safety in broader applications.

## Historical & Cultural Context

Toothache Plant has been a cornerstone of Amazonian, African, and Ayurvedic traditional medicine for centuries. Indigenous Amazonian tribes used it for oral pain relief, while Ayurvedic practitioners valued its [anti-inflammatory](/ingredients/condition/inflammation) and digestive properties. This botanical is revered for its unique numbing sensation and broad medicinal applications.

## Synergistic Combinations

Role: Polyphenol/[antioxidant](/ingredients/condition/antioxidant) base
Intention: Immune & [Inflammation](/ingredients/condition/inflammation)
Primary Pairings: - Echinacea (Echinacea purpurea)
- Turmeric (Curcuma longa)
- Ginger (Zingiber officinale)
- Ashwagandha (Withania somnifera)

## Frequently Asked Questions

### How much spilanthol is needed for pain relief effects?

Laboratory studies show spilanthol reduces inflammatory markers by 60% at 90 μM concentrations, but human dosage recommendations require clinical trials. Traditional preparations typically use fresh flower extracts, though standardized dosing remains unestablished.

### What makes toothache plant effective for oral pain?

The N-alkylamide compound spilanthol provides anesthetic effects by stimulating salivation and blocking pain signals through nitric oxide pathway inhibition. This mechanism directly targets inflammatory processes in oral tissues while providing numbing sensation.

### Are there any serious drug interactions with toothache plant?

Spilanthol inhibits CYP2E1 enzyme activity, potentially affecting anesthetic medications like isoflurane and sevoflurane. Animal studies suggest possible interference with antiandrogen drugs by altering hormone levels, though clinical significance requires further research.

### Can pregnant women safely use toothache plant?

Animal studies indicate potential teratogenic effects from spilanthol metabolites, suggesting caution during pregnancy. Without human safety data, pregnant women should avoid toothache plant preparations until clinical studies establish safety profiles.

### How long do the numbing effects of toothache plant last?

While traditional use reports temporary oral numbness lasting 15-30 minutes, controlled studies measuring duration of spilanthol's anesthetic effects are lacking. The compound's bioavailability and elimination kinetics in humans remain unstudied in clinical settings.

### What is the most effective form of toothache plant for oral pain relief?

Fresh or dried flower extracts and tinctures are considered most potent for immediate numbing effects due to higher spilanthol concentration compared to powdered forms. Many users report faster pain relief from liquid extracts applied directly to the affected area, though standardized extracts ensure consistent spilanthol levels across batches. Dried flowers can be made into a paste or tea for both topical and internal benefits.

### Who should avoid toothache plant supplementation?

Children under 5 years old should avoid toothache plant due to limited safety data, and individuals with severe allergies to plants in the Asteraceae family should exercise caution. People with undiagnosed oral pain should consult a dentist before use, as toothache plant masks symptoms rather than treating underlying dental issues. Those taking immunosuppressant medications should consult a healthcare provider, as toothache plant's immune-stimulating properties may interfere with treatment.

### What does research show about toothache plant's anti-inflammatory benefits beyond oral pain?

Clinical studies indicate that spilanthol possesses systemic anti-inflammatory properties that may help reduce joint pain and support conditions involving chronic inflammation. Research suggests these effects work through multiple mechanisms, including reducing inflammatory cytokine production, though most robust evidence remains focused on topical oral applications. While promising for inflammation-related conditions, more human clinical trials are needed to establish optimal dosing and efficacy for systemic inflammatory support.

## References

Sources: https://pubmed.ncbi.nlm.nih.gov/31881457; https://www.sciencedirect.com/science/article/pii/S2225411016300843; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7152138/

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