منابع مشابه
Treatment of the common cold with echinacea: a structured review.
BACKGROUND Echinacea is a herbal preparation that is frequently used to treat the common cold. Spending on echinacea in the United States has risen to >300 million dollars annually. METHODS A total of 322 articles related to echinacea and colds, including 9 placebo-controlled clinical trials, were identified using the Medline and PubMed databases. Eleven features of experimental design that a...
متن کاملEchinacea for treating the common cold: a randomized trial.
BACKGROUND Echinacea is widely used to treat the common cold. OBJECTIVE To assess the potential benefits of echinacea as a treatment of common cold. DESIGN Randomized, controlled trial. (ClinicalTrials.gov registration number: NCT00065715) SETTING Dane County, Wisconsin. PATIENTS 719 patients, aged 12 to 80 years, with new-onset common cold. INTERVENTION Patients were assigned to 1 of...
متن کاملEchinacea for preventing and treating the common cold.
Echinacea preparations are widely used for common cold. Many consumers and healthcare professionals are not aware that products available under the term Echinacea may differ in their composition, due to the use of different species, plant parts, extraction methods and addition of other components. In 2005, a Cochrane review has been published to provide objective evidence whether the various Ec...
متن کاملEvaluation of echinacea for the prevention and treatment of the common cold: a meta-analysis.
Echinacea is one of the most commonly used herbal products, but controversy exists about its benefit in the prevention and treatment of the common cold. Thus, we did a meta-analysis evaluating the effect of echinacea on the incidence and duration of the common cold. 14 unique studies were included in the meta-analysis. Incidence of the common cold was reported as an odds ratio (OR) with 95% CI,...
متن کاملEchinacea, vitamin C, the common cold, and blinding.
Sir—Caruso and Gwaltney [1] reviewed the effect of echinacea treatment on the common cold, identifying 9 placebo-controlled trials. A quality score was calculated for each trial, and the main focus was put on 2 trials that received maximum scores and reported negative results. However, the use of quality scores in literature reviews has been strongly discouraged. For example, Greenland [2] comm...
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ژورنال
عنوان ژورنال: Clinical Infectious Diseases
سال: 2005
ISSN: 1058-4838,1537-6591
DOI: 10.1086/428063