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Theories concerning beta agonist toxicity

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Possible explanation for the apparent toxicity of beta-agonists in asthma include:

  • excessive use results in cardiac arrhythmias and hypokalaemia
  • beta-agonists may promote an over-reliance on symptom relief at the expense of anti-inflammatory therapy
  • tachyphylaxis
  • bronchodilatation results in increased allergen penetration

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