a dark, sulfur-containing pigment normally found in the hair, skin, ciliary body, choroid of the eye, pigment layer of the retina, and certain nerve cells. It occurs abnormally in certain tumors, known as melanomas, and is sometimes excreted in the urine when such tumors are present (melanuria). melanin deficiency.
Regular insulin includes regular human insulin also known as human insulin (regular) and is a short acting insulin. The two most common brand names are Humulin R and Novolin R. It is primarily used to treat high blood sugar levels in conditions like diabetes mellitus. 1 Medical uses.
Humulin R vs. Humalog. Humulin R is a brand name for regular insulin. It is a short-acting insulin. That means that it takes about 30 minutes to reach your bloodstream and works for about three to six hours. Humalog is a brand name for insulin lispro, which is a fast-acting insulin.