What do systematic reviews say?

As‐required FABA/ICS inhalers vs as‐required FABA inhalers

As‐required FABA/ICS inhalers leads to lower asthma exacerbation requiring systemic steroid compared with as‐required FABA inhalers (high certainty).

• Combination fixed‐dose beta agonist and steroid inhaler as required for adults or children with mild asthma 2021 · Cochrane Headline outcomes only
  OR 0.45
  2 studies · 2997 participants
  High