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Herbal preparation to prevent respiratory tract infections

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Ten years ago annual expenditure on herbal medicines was over 2 billion dollars in the USA and over 40 million pounds in the UK. Since then sales have grown by 10–15% per year. A study in Israel (

) of a preparation containing echinacea, propolis, and vitamin C has shown a remarkable protective effect against respiratory tract symptoms in children.

The preparation (Chizukit) contains 50 mg of echinacea (E …

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