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.
Intermediate-acting insulin. What itâs called: Humulin N (NPH), Novolin N (NPH) Intermediate-acting insulin can control blood sugar levels for about 12 hours or longer, so it can be used overnight. It begins to work within one to four hours, and peaks between four and 12 hours, depending on the brand.