3 grams
1 For mild vitamin B3 deficiency, niacin or niacinamide 50-100 mg per day is used. 2  For pellagra in adults, niacin or niacinamide 300-500 mg daily is given in divided doses. 3  For pellagra in children, niacin or niacinamide 100-3 1 For mild vitamin B3 deficiency, niacin or niacinamide 50-100 mg per day is used. 2  For pellagra in adults, niacin or niacinamide 300-500 mg daily is given in divided doses. 3  For pellagra in children, niacin or niacinamide 100-3 1 For preventing and treating vitamin B3 deficiency: Doses of nicotinic acid and niacinamide are considered equivalent. 2  For mild vitamin B3 deficiency, niacin or niacinamide 50-100 mg per day is used. 3  For pellagra in adults, niacin or niacinamide 300-500 mg daily is given in divided doses. The maximum daily dose of niacin is: Children 1-3 years, 10 mg; Children 4-8 years, 15 mg; Children 9-13 years, 20 mg; Adults, including Pregnant and Lactating women, 14-18 years, 30 mg; and Adults, including pregnant and breast-feeding women, older than 18 years, 35 mg. 1 To prevent heart disease in people with high cholesterol: Niacin 4 grams daily. 2  For preventing and treating vitamin B3 deficiency: Doses of nicotinic acid and niacinamide are considered equivalent. 3  For mild vitamin B3 deficiency, niacin or niacinamide 50-100 mg per day is used. For high cholesterol, 300-1,2000 milligrams of niacin has been taken by mouth daily for 6-44 weeks as wax-matrix, immediate-release (crystalline); 2 grams of niacin has been injected into the vein over 11 hours. The maximum recommended daily dose is 3 grams. For high cholesterol (in combination with statins or bile acid sequestrants) 500-4,000 milligrams of extended-release or regular niacin has been taken by mouth daily for eight weeks to 6.2 years. The recommended dietary allowance (RDA) of niacin to prevent pellagra (a disease caused by vitamin B3 deficiency and characterized by diarrhea, dermatitis, dementia, and possible death) is 16 mg a day for males and 14 mg for females. Niacin, also called nicotinic acid, is a B vitamin (vitamin B3) used in vitamin supplements and in combination with prescription drugs. It is most often used to prevent cardiovascular disease. Niacin, also known as nicotinic acid and vitamin B3, is a water soluble, essential B vitamin which, when given in high doses, is effective in lowering low density lipoprotein (LDL) cholesterol and raising high density lipoprotein (HDL) cholesterol, which makes this agent of unique value in the therapy of dyslipidemia.
https://www.nlm.nih.gov/medlineplus/druginfo/natural/924.html http://answers.webmd.com/answers/1187931/what-is-the-recommended-dosage-for http://answers.webmd.com/answers/1187931/what-is-the-recommended-dosage-for http://answers.webmd.com/answers/1187931/what-is-the-recommended-dosage-for https://www.nlm.nih.gov/medlineplus/druginfo/natural/924.html http://www.mayoclinic.org/drugs-supplements/niacin--niacinamide/dosing/HRB-20059838 http://www.lifeextension.com/Magazine/2007/3/atd/Page-01 http://www.everydayhealth.com/drugs/niacin http://livertox.nih.gov/Niacin.htm
what is the maximum dose of slo niacin