if you have symptoms of ketoacidosis, which is serious and may lead to death. answer the alert. ask your doctor if farxiga could do more for you. if you can't afford your medication, astrazeneca may be able to help. my gums are irritated. i don't have to worry about that, do i? harmful bacteria lurk just below the gum line. crest gum detoxify works below the gum line to neutralize harmful plaque bacteria and help reverse early gum damage. crest.