Cholelage 50 ml oral drops. Cholelage drops are considered a form of vitamin D in the form of drops or what is known as the sunshine vitamin. It is used for the treatment and prevention of vitamin D3 deficiency, rickets in children, and osteoporosis, because the body manufactures it when exposed to ultraviolet rays from the sun, and sunlight is considered the most important factor in manufacturing vitamin D in the body through the skin.