Evidence
many strong studies
GroupStop an attack
How it works
In a 2009 JAMA trial oxygen stopped or clearly eased 78% of attacks within 15 minutes, versus 20% with air.
How it is used
No serious side effects, can be used several times a day. The 2023 European guideline names it a first choice.
Important. No smoking near oxygen.
Any medicine is prescribed by a doctor. This page only explains how it works.