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  2. Nicotinamide - Wikipedia

    en.wikipedia.org/wiki/Nicotinamide

    While nicotinic acid (niacin) may be used for this purpose, nicotinamide has the benefit of not causing skin flushing. [4] As a cream, it is used to treat acne, and has been observed in clinical studies to improve the appearance of aging skin by reducing hyperpigmentation and redness. [5] [6] It is a water-soluble vitamin. Side effects are minimal.

  3. Inositol nicotinate - Wikipedia

    en.wikipedia.org/wiki/Inositol_nicotinate

    Inositol nicotinate is generally safe when taken by mouth, but possible side effects include: Stomach upset; Intestinal gas; Nausea; Liver damage (similar to other niacin products) [1] It is marketed as "no-flush" niacin, but research suggests that the lack of flushing may be due to its limited conversion to active niacin. [4]

  4. Megavitamin therapy - Wikipedia

    en.wikipedia.org/wiki/Megavitamin_therapy

    In the US, niacin is also available as a dietary supplement at 500 to 1,000 mg/tablet. Niacin has sometimes been used in combination with other lipid-lowering medications. [37] Systematic reviews found no effect of niacin on cardiovascular disease or death, in spite of raising high-density lipoprotein (HDL) cholesterol. Reported side effects ...

  5. Nicotinic acid - Wikipedia

    en.wikipedia.org/wiki/Nicotinic_acid

    Laropiprant is a prostaglandin D2 binding drug shown to reduce niacin-induced vasodilation and flushing side effects. [ 28 ] [ 72 ] [ 73 ] A clinical trial showed no additional efficacy of Tredaptive in lowering cholesterol when used together with other statin drugs, but did show an increase in other side effects. [ 74 ]

  6. Pellagra - Wikipedia

    en.wikipedia.org/wiki/Pellagra

    Carcinoid syndrome thus may produce niacin deficiency and clinical manifestations of pellagra. Anti-tuberculosis medication tends to bind to vitamin B 6 and reduce niacin synthesis, since B 6 (pyridoxine) is a required cofactor in the tryptophan-to-niacin reaction. Several therapeutic drugs can provoke pellagra.

  7. Vitamin B3 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B3

    Example of a label showing the amount of niacin (Vitamin B3), and specifying to be niacinamide in the ingredient section.. As flour fortification started adding niacin in the US, the United States Government adopted the terms niacin (a shortened form of "nicotinic acid vitamin") and niacinamide in 1942 as alternate names for nicotinic acid and nicotinamide, respectively, and encouraged their ...