Do not share your Fiasp® with other people, even if the needle has been changed. You may give other people a serious infection or get a serious infection from them.
Fiasp® is designed to start working fast
Fiasp® is insulin aspart in a formulation containing 2 additional ingredients: a form of vitamin B3 (niacinamide) which increases the speed of initial insulin absorption and an amino acid to aid stability.
Fiasp® enters the bloodstream quickly after dosing
It enters your bloodstream in approximately 2½ minutes. This way, you can take Fiasp® at the start of the meal, or 20 minutes after the start of a meal.