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Niacin is available in Walgreens. It is a vitamin B3 tablet and it is used to improve the cholesterol levels.
Vitamin B3 is Niacin
No, Niacin doesn't have vitamin B12 but it does have B3.
Vitamin B3 is also known as niacin.
autoimmune disease such as lupus, hashimoto, carcinoids or goitre or graves disease, thymus disorders (and pheochromocytoma), vitamin b3 deficiency, taking vitamin b3 tablet (niacin).