Fiasp® is a formulation of insulin aspart with 2 excipients added to the solution1,2

The active molecule in Fiasp® is identical to NovoLog® (insulin aspart) injection 100 U/mL.

The Fiasp® formulation contains the addition of vitamin B3 (niacinamide) to increase the speed of initial absorption and an amino acid (L-arginine) to stabilize the formulation.2

Dose timing is different for Fiasp® vs NovoLog®1,3