Quick summary

Codonopsis pilosula is a traditional Chinese medicinal herb widely used as a Qi-invigorating agent. Polysaccharides extracted from Codonopsis pilosula (CPP) have been shown to improve mitochondrial energy metabolism and exhibit immune regulatory effects in animal models. Several studies incorporate Codonopsis pilosula or its polysaccharides within herbal formulas used as adjunctive treatments for various conditions including respiratory diseases, cancer, hypothyroidism, and immune disorders. Clinical evidence suggests that Codonopsis-containing formulations may improve outcomes in conditions such as irritable bowel syndrome with diarrhea, hypothyroidism, and fatigue syndromes, often with acceptable safety profiles. However, most evidence comes from integrative herbal formulas or preclinical research, with few high-quality, isolated clinical trials on Codonopsis pilosula alone.

What is it?

Codonopsis pilosula, also known simply as Codonopsis, is a perennial plant native to East Asia. It is a valued herb in traditional Chinese medicine (TCM), commonly utilized to boost “Qi” or vital energy. The root is typically harvested and used in decoctions, extracts, and herbal mixtures.

Traditional uses

Traditionally, Codonopsis pilosula is used to strengthen the immune system, enhance energy and stamina, support digestive health, and treat respiratory ailments. It is often included in formulas designed to replenish Qi, counter fatigue, and aid recovery from chronic illnesses.

Active compounds

The key active components include polysaccharides, particularly Codonopsis pilosula polysaccharides (CPP), as well as saponins, alkaloids, and flavonoids. The polysaccharides are thought to contribute most significantly to its energy metabolism and immune-modulating properties.

Potential benefits with evidence levels

  • Symptom relief and reduced recurrence in diarrhea-predominant irritable bowel syndrome (IBS-D)
    Evidence level: Systematic review and meta-analysis of 34 randomized controlled trials (Level 1a)
    Details: Si-Shen-Wan (SSW), a formula containing Codonopsis pilosula, significantly improved treatment efficacy and alleviated symptoms in IBS-D compared to biomedical treatments alone, with reduced recurrence and no serious adverse events reported. Limitations include small sample sizes and lack of double-blind design.
  • Improved mitochondrial energy metabolism under energy deficiency states
    Evidence level: Animal experimental study
    Details: CPP administration in a chronic hypoxia mouse model improved mitochondrial respiratory function, increased ATP and energy charge levels, and decreased oxidative stress markers.
  • Immune modulation and potential enhancement of antitumor immunity
    Evidence level: Preclinical multi-omics and animal studies
    Details: Alkali-extracted Codonopsis pilosula polysaccharides promoted intestinal Lactobacillus enrichment, activated T cell–mediated antitumor responses, and induced apoptosis in tumor cells in mouse models.
  • Adjunctive benefits in traditional Chinese medicine formulas for hypothyroidism, chronic fatigue syndrome, and supportive cancer care
    Evidence level: Systematic reviews and meta-analyses including randomized controlled trials involving Codonopsis pilosula as part of herbal mixtures
    Details: Formulations containing Codonopsis pilosula contributed to modulation of thyroid and immune function and fatigue symptoms in clinical contexts, though the evidence quality is often moderate to low due to methodological limitations.

Side effects

No serious adverse effects directly attributed to Codonopsis pilosula or its polysaccharides were reported in human trials or animal studies. Minor adverse events are not well characterized, and codonopsis-specific safety data remain limited.

Drug interactions

No conclusive clinical data exist on drug interactions involving Codonopsis pilosula. Given its frequent use in multi-herb formulas and alongside conventional therapies, potential interactions cannot be ruled out and warrant further investigation.

Who should avoid it

No specific contraindications for Codonopsis pilosula have been documented in current clinical research. Nonetheless, caution may be advisable for certain populations due to limited safety data. Pregnant and breastfeeding individuals should use Codonopsis pilosula cautiously and only under professional guidance, as insufficient evidence exists regarding safety in these groups.

Evidence limitations

Most clinical studies involve Codonopsis pilosula within multi-herb traditional Chinese medicine formulas rather than as an isolated agent, limiting the ability to attribute effects solely to Codonopsis. Studies often have methodological limitations, including small sample sizes, lack of blinding, and short follow-up durations. Preclinical mechanistic studies show promise but require clinical validation. Safety and drug interaction data specific to Codonopsis are sparse. High-quality, large-scale randomized controlled trials focused on Codonopsis pilosula alone are needed to confirm its efficacy and safety.

References

Last reviewed

June 2024

Informational disclaimer: This page is for educational purposes only and does not constitute medical advice. Codonopsis pilosula is not approved by regulatory authorities for the diagnosis, treatment, or prevention of any disease. Consult a qualified healthcare professional before starting any new herbal supplement, especially if you are pregnant, breastfeeding, have underlying health conditions, or are taking other medications.