When I’m on the track, it’s “fast in and fast out.” The same goes for my choice of mealtime insulin. I use Afrezza, a rapid-acting mealtime insulin that’s perfect for my fast-paced lifestyle. Important Safety Information Afrezza® (insulin human) Inhalation Powder may cause serious side effects, including sudden lung problems (in a study, some AFREZZA-treated patients with asthma, whose asthma medication was temporarily withheld, experienced sudden lung problems). Other serious side effects may include low blood sugar, decreased lung function, lung cancer, diabetic ketoacidosis, severe allergic reaction, low potassium in your blood, and heart failure. Some of these side effects may lead to death. The most common side effects are low blood sugar, cough, and sore throat. Don’t use AFREZZA if you have long-term lung problems such as asthma or chronic obstructive pulmonary disease (COPD) or are allergic to any of the ingredients in AFREZZA. Don’t use AFREZZA if you are having an ep...