Natural remedies for influenza
Pro Research Analysisby 
Searched over 200M research papers
Herbal Remedies and Plant Extracts for Influenza
A wide range of herbal remedies have been studied for their effectiveness in preventing and treating influenza. Notable examples include maoto, licorice root, North American ginseng, Echinacea, pomegranate, guava tea, Bai Shao, honeysuckle flowers, thyme, green chiretta, andrographis, peppermint, calendula, and Isatis root. These plants contain active compounds such as neuraminidase inhibitors, glycyrrhizin, polyphenols, and baicalin, which can block the virus from entering cells, inhibit viral replication, and stimulate the immune system to fight infection Mousa2015Mousa2017Zhang2020+3 MORE.
Traditional Chinese Medicine (TCM) and Iranian Traditional Medicine (ITM) both use a variety of these herbs, and some TCM formulas like Lianhuaqingwen capsules and Banlangen (Isatis root) have shown promise in regulating immune responses and interfering with both viral and host reactions Zhang2020Shahrajabian2023Jiang2013.
Phytochemicals and Natural Compounds with Antiviral Activity
Specific plant-derived compounds, such as flavonoids (including quercetin), alkaloids, terpenoids, phenols, and polysaccharides, have demonstrated antiviral effects against influenza viruses. Quercetin, for example, has been highlighted for its ability to control influenza symptoms and inhibit viral activity Li2024Mehrbod2020. Aloe polysaccharides from Aloe vera have also been shown to directly interact with influenza virus particles, reduce viral replication, and improve symptoms in animal studies .
Essential Oils and Complementary Therapies
Essential oils from various medicinal plants have been used as complementary and alternative treatments for influenza. These oils contain components with anti-influenza activity, and their use is supported by a long history in traditional medicine .
Other complementary therapies include oral zinc, which may reduce the length and severity of colds, and probiotics, which can lower the number and severity of respiratory infections. Regular vitamin C supplementation may slightly reduce cold duration, though its effect on influenza specifically is less clear .
Effectiveness and Safety Compared to Conventional Treatments
Some studies suggest that certain herbal remedies and TCM formulas may be as effective as conventional antiviral drugs in preventing or treating influenza, with similar rates of mild adverse reactions. However, most evidence comes from studies with methodological limitations, and more high-quality research is needed to confirm these findings Zhang2020Jiang2013.
Mechanisms of Action of Natural Remedies
Natural remedies can fight influenza by:
- Inhibiting viral enzymes (like neuraminidase) to prevent virus release from cells
- Blocking viral entry and replication
- Stimulating immune responses, such as increasing interferon production and antibody levels
- Reducing inflammation and supporting recovery Mousa2015Zhang2020Li2024+2 MORE
Conclusion
Natural remedies, including a variety of herbal extracts, phytochemicals, and essential oils, offer promising complementary options for the prevention and treatment of influenza. While many plant-based therapies have shown antiviral activity and immune-boosting effects, more rigorous clinical studies are needed to fully establish their effectiveness and safety compared to standard antiviral medications. For those seeking natural approaches, these remedies may provide additional support, especially when conventional options are limited or ineffective.
Sources and full results
Most relevant research papers on this topic