Many people with CF die when their CO2 levels in their blood go sky high. This is a calm way to go, and medication is generally not needed in this situation. Other PWCF's benefit from the use of medication at this time.
Some places use Valium or an intravenous drip morphine for such cases.
It might relieve the person, also, to know that palliative care is available in the event it is needed. Most people do not want to be in pain and today, most pain can be controlled. However, those of us who suffer lung disease fear suffocation. So, what is done for these types of patients. This is a recently new way to administer this drug by inhalation.