Results of Human Tests of Echinacea Purpurea Extract Products
Echinacea purpurea products have been popular in Europe and the United States for more than 100 years. They are a few medicinal plants with high efficacy and safety, and also accumulate very abundant human test data.
In a large analysis, Melchart (1994) et al. analyzed 18 clinical lycinated immunomodulation groups with experimental control, and 16 of the 18 machine-based trial groups confirmed positive effects, showing that products containing its extract ,which did have positive clinical lynodulation effects.
Not only its ingots or extracts are made from its extract effective, but echinacea may also be effective in slowing cold symptoms by making tea bags. Lindenmuth and others have experimented to explore the effect of echinacea tea on improving cold symptoms, the drug is a double-blind approach to 95 individuals, the test program includes itchy throat, nose water, fever, the length of the cold symptoms, the results of the experiment, regardless of the severity of cold symptoms, or cold days, drinking the tea groups have significantly improved.
Due to the wide variety of echinacea products, including liquid types such as extractors, tea drinks, and solid capsules, ingot types, Most scholars agree that liquid dosage forms are more conducive to maximum absorption in the form of alcohol or tea. Woelkart et al. confirmed in human clinical experiments that the same dose of tincture or tablet was given to the subjects, the absorption of the agent is faster and complete, ingot agent because the digestion channel disintegrates slowly, so the active ingredient in the blood peak is slow, but the overall absorption pattern and effect in the ingot and the agent is about the same.
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