Long- acting insulin takes 2-4 hours to start working lasts 24 hours
Ultra-long-acting insulin takes 6 hours to start working Lasts 36-42 hours
Rapid Acting takes 15 minutes to start working lasts 2-4 hours
Regular insulin takes 30 minutes to start working lasts 3-6 hours
Intermediate-acting insulin takes 1-2 hours to start working lasts 12 hours
Inhaled insulin takes 12-15 minutes to start working lasts for 3 hours
Insulin detemir (Levemir) Insulin glargine (Lantus, Basaglar)
Insulin degludec (Tresiba) Insulin glargine U300 (Toujeo)
Inhaled insulin (Afrezza)
NPH (Novolin N)
Insulin aspart (Novolog) Insulin lispro (Humalog) Insulin glulisine (Apidra)
Insulin regular (Novolin R)