Niacin, also called nicotinic acid, is a B vitamin (vitamin B3). It occurs naturally in plants and animals, and is also added to many foods as a vitamin supplement. Niacin is also present in many multiple vitamins and nutritional supplements. Niacin is used to treat and prevent a lack of natural niacin in the body, and to lower cholesterol and triglycerides (types of fat) in the blood. It is also used to lower the risk of heart attack in people with high cholesterol who have already had a heart attack. Niacin is sometimes used to treat coronary artery disease (also called atherosclerosis). Niacin may also be used for purposes not listed in this medication guide.
Niacin, also called nicotinic acid, is what is known as a B vitamin or Vitamin B3. It is an organic compound that does occur naturally in plants, animals, and it is added to foods as a vitamin supplement. Niacin can be used to both treat, as well as, prevent a lack of it in the human body. It is also used to lower cholesterol and triglycerides. It is even used to lessen the chance of a person having a heart attack who has high cholesterol and who may have had a heart attack before. Niacin can be used to treat the conditions already highlighted above. However, it can also be used to treat coronary artery disease atherosclerosis, and also for other purposes not listed here. Some Strengths that do go along with niacin are only available through a doctor's prescription.