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[Interactions between herbal medicines and drugs]
1Katedra farmakognozie Farmaceutické fakulty Univerzity Karlovy, Hradec Králové.
Summary
The use of herbal medicines is increasing, but interactions with conventional drugs are a concern. Some popular herbs like Echinacea and St. John's Wort can reduce medication effectiveness or cause toxicity.
Area of Science:
- Pharmacology
- Phytotherapy
- Drug Interactions
Context:
- Growing popularity of herbal remedies necessitates understanding their interactions.
- Medicinal plants, including Echinacea, Ginkgo biloba, and St. John's Wort, are widely used.
- Potential for adverse events exists when herbal products are combined with conventional pharmaceuticals.
Purpose:
- To highlight the potential for drug-herb interactions.
- To identify specific medicinal plants and conventional drugs that pose a risk.
- To inform healthcare providers and patients about safe usage guidelines.
Summary:
- Several commonly used medicinal plants, such as Echinacea, Ginkgo biloba, Panax ginseng, Hypericum perforatum, Valeriana officinalis, and Glycyrrhiza glabra, can interact with conventional medications.
- Interactions may lead to reduced therapeutic efficacy or increased toxicity of prescribed drugs.
- Specific drug classes, including warfarin, hepatotoxic agents, MAO inhibitors, and phenytoin, require caution when co-administered with these herbs.
Impact:
- Enhances patient safety by raising awareness of herb-drug interactions.
- Promotes informed decision-making for healthcare professionals and consumers regarding herbal product use.
- Contributes to the safe integration of phytotherapy within conventional medical practices.