Niacin and possible liver damage https://www.ncbi.nlm.nih.gov/books/NBK548176/
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Niacin and possible liver damage https://www.ncbi.nlm.nih.gov/books/NBK548176/
From that reference: “... certain formulations of niacin have been linked to clinically apparent, acute liver injury which can be severe as well as fatal.”
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The “formulation of niacin” that they’re referring to is probably niacinamide, which is a chemical modification of niacin designed to prevent niacin flush. Niacin — nicotinic acid — is safe in multigram doses. A common dose for schizophrenia is 12 g, twice a day.