noun, Biochemistry. 1. a pigment containing melanin, found in bird feathers. Origin of eumelanin. eu- + melanin.
1 In the United States, rapid-acting insulin, Lyspro (humalog) is mixed with NPH in a 50:50 (50% NPH and 50% insulin Lyspro) and 75:25 (75% NPH and 25% insulin Lyspro) ratio.  Insulin/Aspart (Novolog) combinations also are available as 70:30 mixtures (70% NPH, 30% insulin aspart).
If you've been prescribed two types of insulin to be taken at once (mixed dose), skip to the instructions in the next section. 1  Draw the required number of units of air into the syringe by pulling the plunger back. You need to draw the same amount of air into the syringe as insulin you need to inject.