Calbonex D3 Capsule is a vitamin supplement. It contains Vitamin D3 as an active ingredient which is also known as cholecalciferol or colecalciferol. Vitamin D is an essential component for the absorption of calcium. It helps maintain healthy and strong bones and teeth. This is a high dose of vitamin D to be taken once weekly and not meant for daily consumption. It should be taken for a limited period only under a doctor’s guidance. It is used for the treatment and prevention of vitamin D deficiency. It is also used as an adjuvant in certain bone-related conditions and when nutritional requirements of the body are high such as in the elderly, after surgery and in growing children. Vitamin D is produced naturally within the body when sun rays (UV rays) strikes the skin and it’s also known as ‘sunshine vitamin’. Low levels of Vitamin D can cause weakness, fatigue, fragile or weak bones. Try to take this supplement after having a meal.