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Synergy in plant medicines
Benjamin Gilbert1, Lucio Ferreira Alves
1Institute for Technology of Pharmaceuticals - Far-Manguinhos, Oswaldo Cruz Foundation - FIOCRUZ, Rio de Janeiro, Brazil. gilbert@far.fiocruz.br
Current Medicinal Chemistry
|February 7, 2003
Summary
Plant-derived medicines often contain adjuvant substances that boost the efficacy of active compounds. This synergy enhances drug action through various mechanisms, improving phytotherapy outcomes.
Area of Science:
- Pharmacology
- Phytochemistry
- Drug Discovery
Background:
- Traditional view: plant medicines act via isolated active principles.
- Emerging evidence: adjuvant substances in crude plant extracts enhance therapeutic effects.
- These adjuvants contribute to the overall efficacy of phytotherapy.
Purpose of the Study:
- To challenge the traditional view of isolated active principles in plant-derived medicines.
- To highlight the role of synergistic interactions between compounds in enhancing drug activity.
- To review evidence supporting adjuvant effects in phytotherapy.
Main Methods:
- Review of existing scientific literature on plant synergy and adjuvant effects.
- Analysis of mechanisms by which adjuvant substances enhance drug action.
- Discussion of the implications for phytotherapy and drug development.
Main Results:
- Plant extracts often contain adjuvant substances that potentiate the activity of primary active compounds.
- Synergistic mechanisms include protection from degradation, enhanced transport, overcoming drug resistance, and signaling.
- Crude plant drugs can be more effective than isolated components due to these synergistic effects.
Conclusions:
- The efficacy of plant-derived medicines is often a result of synergy, not just isolated active principles.
- Understanding these synergistic interactions is crucial for optimizing phytotherapy.
- This phenomenon has significant implications for the development of new plant-based therapeutics.