Vitamin PP Vitamin PP is a generic term for nicotinic acid and nicotinamide
, is used to treat pellagra vitamin. In recent years, found that elderly people suffer from vitamin PP to help reduce risk of dementia. Health Wellness Center in Chicago for 815 who do not suffer from Alzheimer's disease of the elderly, made a 4-year follow-up survey found that four years later, 131 people suffering from dementia.