Echinacea
There are nine known species of echinacea, all of which are native to the United States and southern Canada. Echinacea has traditionally been used for colds, flu, and other infections, but research studies on echinacea for colds have had inconclusive results.
Featured:
Information about echinacea, studied for the common cold.
For Consumers
General Information
Research Spotlights
Ongoing Medical Studies
- Find Active Medical Research Studies on Echinacea (ClinicalTrials.gov)
For Health Professionals
NCCAM Clinical Digest
Scientific Literature
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Systematic Reviews/Reviews/Meta-analysis (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
