A randomized, double-blind study compared the use of echinacea against the use of oseltamivir in 473 patients with virologically confirmed influenza. Echinacea was found to be equally as effective in early treatment, with less complications and adverse effects.
Some research has suggested that echinacea may be effective in treating anxiety. A double-blind, placebo-controlled study found that 40 mg of echinacea was associated with a significant decrease in anxiety scores. However, a similar study recently found that there is no significant improvement associated with 40 mg or 80 mg daily of echinacea compared with placebo. Findings have not suggested that the use of echinacea worsens anxiety.
Serious interactions have been reported in patients who are taking inhaled beclomethasone and echinacea. Moderate or minor interactions are associated with a wide variety of other medications.
Adverse effects associated with echinacea include:
Abdominal pain
Allergic reactions
Altered fertility
Diarrhea
Dizziness
Erythema (topical use)
Exanthema (topical use)
Fever
Nausea/vomiting
Pruritis (topical use)
Sore throat
Unpleasant taste
Learn more clinical information about echinacea.
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Any views expressed above are the author's own and do not necessarily reflect the views of WebMD or Medscape.
Cite this: Mary L. Windle. Fast Five Quiz: Herbal Supplements - Medscape - Jan 12, 2022.
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