Webster Dictionary(0.00 / 0 votes)Rate this definition: Melanin(noun) a black pigment found in the pigment-bearing cells of the skin (particularly in the skin of the negro), in the epithelial cells of the external layer of the retina (then called fuscin), in the outer layer of the choroid, and elsewhere. It is supposed to be derived from the decomposition of hemoglobin.
How to prepare your insulin dose if you are using two types of insulin: 1  When you mix regular insulin with another type of insulin, always draw the regular insulin into the syringe first. When you mix two types of insulins other than regular insulin, it does not matter in what order you draw them into the syringe.
The best time to eat after taking insulin depends on three major factors. First the type of insulin you are taking, the type of food you are eating, and your current blood glucose level. There are two major types of insulin taken before meals, rapid acting and short acting. Rapid acting insulins include lispro (Humalog), insulin aspart (NovoLog), and insulin glulisine (Apidra).