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Terbutaline sulphate nebulizer solution: a dose-response study

D J Birrell, C W Clarke, C S May

    The Medical Journal of Australia
    |September 9, 1978
    PubMed
    Summary
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    This study found that both 5-mg and 10-mg doses of terbutaline nebulizer solution effectively dilated airways in asthma patients. The higher dose, however, led to mild tachycardia.

    Area of Science:

    • Pharmacology
    • Respiratory Medicine
    • Clinical Therapeutics

    Background:

    • Asthma management often involves bronchodilators.
    • Terbutaline is a beta-agonist used for asthma.
    • Understanding optimal dosing is crucial for efficacy and safety.

    Purpose of the Study:

    • To evaluate the dose-response relationship of terbutaline nebulizer solution.
    • To assess bronchodilator efficacy and side effects at different doses.
    • To inform clinical practice for terbutaline administration in asthma.

    Main Methods:

    • A dose-response study was conducted.
    • Nine convalescent asthmatic patients participated.
    • Terbutaline was administered as a wet aerosol at 5-mg and 10-mg doses.

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    Main Results:

    • Both 5-mg and 10-mg doses of terbutaline demonstrated effective bronchodilatation.
    • The 10-mg dose was associated with a mild increase in heart rate (tachycardia).
    • No other significant adverse effects were detailed.

    Conclusions:

    • Terbutaline nebulizer solution is effective for bronchodilation in asthma patients.
    • A 10-mg dose provides effective bronchodilatation but carries a risk of mild tachycardia.
    • Careful monitoring of heart rate may be warranted with higher doses.