Here is a notice distributed by the Cystic Fibrosis Foundation:

The following two FDA announcements may affect the CF community.

https://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm574257.htm

https://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm574261.htm