Technische Universität München

The Entrepreneurial University

Anti-asthmatic treatment with inhaled beta-2 agonists (IBAs) is necessary for asthmatics, but should not be used by non-asthmatic elite athletes due to possible systemic and side-effects of IBA`s.

The most common side effect of beta-2 agonists are
  • fine tremor of the hands,
  • restlessness,
  • nervousness and
  • headache.

They can also cause flushing and palpitations. Rare, but more serious side-effects include
  • abnormal heart rhythms,
  • sleep and behaviour disturbances in children,
  • low blood potassium levels,
  • muscle cramps and
  • allergic reactions.

In addition, the throat and the upper airways could get irritated (worsening wheezing).