or if you've had angioedema with an ace or arb. the most serious side effects are angioedema, low blood pressure kidney problems, or high blood potassium. ask your doctor about entresto. othe freestyle libre 14. managday system...etes can be hard. - a continuous glucose monitor - ...makes it easy. easy to check your glucose without fingersticks, and easy to share your data with your doctor. and for those who qualify, the freestyle libre 14 day system, is also covered by medicare. ask your doctor for a prescription. you can do it without fingersticks. learn more at freestylelibre.us