systematic_review
    2010
    High Quality

    Caffeine for asthma

    Welsh EJ, Bara A, Barley E

    Published in Cochrane Database of Systematic Reviews

    Methodology

    Cochrane review of 6 crossover trials of caffeine on lung function in asthma.

    Key Findings

    Caffeine produced a small improvement in FEV1 for up to four hours and can confound lung function testing.

    Conclusions

    Caffeine is a weak bronchodilator; avoid before lung function tests.

    Limitations

    Very small crossover trials; short duration.

    Outcomes Measured

    Lung Function

    Caffeine produced a small improvement in FEV1 for up to four hours.

    Related Health Concerns

    Difficulty Breathing
    Chest Tightness
    Asthma

    Study Details

    Year:2010
    Sample Size:75
    Quality Score:7/10

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