A commercially produced combination of two different types of insulin. Several types are available:

• pre-mixed nph and regular insulin
• 70 percent nph and 30 percent regular (brand names: humulin 70/30, novolin 70/30. )
• 50 percent nph and 50 percent regular (brand name: humulin 50/50. )

• pre-mixed insulin lispro suspension and insulin lispro
• 75 percent insulin lispro protamine and 25 percent insulin lispro (brand name: humalog mix 75/25. )
• 50 percent insulin lispro protamine and 50 percent insulin lispro (brand name: humalog mix 50/50. )

• pre-mixed insulin aspart protamine suspension and insulin aspart
• 70 percent insulin aspart protamine and 30 percent insulin aspart (brand name: novolog mix 70/30. )