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).
1 Roll the bottle of insulin between your hands two to three times to mix the insulin. Do not shake the bottle, as air bubbles can form and affect the amount of insulin withdrawn.  Wipe off the rubber part on the top of the insulin bottle with an alcohol pad or cotton ball dampened with alcohol.