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. 2  Insert the needle into the rubber stopper of the insulin bottle. 3  Turn the bottle and syringe upside-down.