Beta2 agonists are the only class of drugs that is recommended for the management of
asthma at every level of current guidelines, including those from the British Thoracic
Society (BTS). This means that they are used across the spectrum of severity of
asthma, from mild intermittent disease (step one) to severe asthma symptoms (step
five). In this article, we take you through the key things that you – and your patients – need to
know about these drugs.