I have been taking the Niaspan brand of niacin for about 15 years and it has been completely satisfactory. I receive my medication through the Veterans Administration Pharmacy system and have tried without success to continue the Niaspan brand of niacin but VA insists that I change to Slo-Niacin, 2000mg daily. With my heart disease, previous heart attack, four stents... and previous guidance from dietitians and doctors to avoid hydrogenated and partial-hydrogenated oils I feel that I should not switch to this hydrogenated niacin.