What do systematic reviews say?

Oral + inhaled dual therapy vs oral monotherapy

It is very uncertain whether oral + inhaled dual therapy changes successful treatment of exacerbation: number of participants cured.… compared with oral monotherapy (very low certainty).

• Dual antibiotics for bronchiectasis 2018 · Cochrane Headline outcomes only
  OR 0.66 [0.22, 2.01]
  1 study · 53 participants
  Very low