Seek immediate medical attention if your breathing suddenly worsens, if this medication or your quick-relief inhaler stop working well, or if you need to use the quick-relief inhaler more often than usual (4 or more puffs daily or more than 1 inhaler every 8 weeks).

Learn which of your medications you should use every day and which you should use if your breathing suddenly worsens.

In the next few hours, his blood pressure fell, his breathing worsened, and he drifted from agitation to near-unconsciousness.

This may be severe and must be considered among those patients whose breathing acutely worsens.

Joey's breathing worsened for a moment; his wheezing grew alarmingly loud and ragged.

In the meantime, Ms. Lundgren's breathing worsened, and she needed a respirator.