MODEL RELEASED. Pill coating machine. Technician in protective clothing reaches into a pill coating machine. A zoom photographic effect gives it a blurred appearance of speed. The machine coats the pills in a rotating drum to ensure an even coating. The technician is wearing a protective coat, gloves and cap. This is to maintain sterile conditions. The coatings of pills have many functions. They can provide a hard protective coating, an antioxidant layer or be coloured for identification. They may also be used to make pills palatable.