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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. Nicotinic acid - Wikipedia

    en.wikipedia.org/wiki/Nicotinic_acid

    The acute adverse effects of high-dose nicotinic acid therapy (1–3 grams per day) – which is commonly used in the treatment of hyperlipidemias – can further include hypotension, fatigue, glucose intolerance and insulin resistance, heartburn, blurred or impaired vision, and macular edema.

  4. 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 ...

  5. Pellagra - Wikipedia

    en.wikipedia.org/wiki/Pellagra

    Treatment is with either nicotinic acid or nicotinamide supplementation. [1] Improvements typically begin within a couple of days. [1] General improvements in diet are also frequently recommended. [3] Decreasing sun exposure via sunscreen and proper clothing is important while the skin heals. [1] Without treatment death may occur. [3]

  6. Nicotinic antagonist - Wikipedia

    en.wikipedia.org/wiki/Nicotinic_antagonist

    A nicotinic antagonist is a type of anticholinergic drug that inhibits the action of acetylcholine (ACh) at nicotinic acetylcholine receptors.These compounds are mainly used for peripheral muscle paralysis in surgery, the classical agent of this type being tubocurarine, [1] but some centrally acting compounds such as bupropion, mecamylamine, and 18-methoxycoronaridine block nicotinic ...

  7. Nicotinic agonist - Wikipedia

    en.wikipedia.org/wiki/Nicotinic_agonist

    Substitution on the amino group with three different amides increased binding; where methylamide had the greatest, other substituted amides showed a decrease in binding affinity due to steric hindrance and/or absence of a methyl group resulting in the loss of hydrophobic interactivity. The stereochemistry of pyridine nitrogen and/or the ...

  8. Pyridinecarboxylic acid - Wikipedia

    en.wikipedia.org/wiki/Pyridinecarboxylic_acid

    A pyridinecarboxylic acid is any member of a group of organic compounds which are monocarboxylic derivatives of pyridine. Pyridinecarboxylic acid comes in three isomers: Picolinic acid (2-pyridinecarboxylic acid) Nicotinic acid (3-pyridinecarboxylic acid), also known as Niacin; Isonicotinic acid (4-pyridinecarboxylic acid)

  9. Cholinergic blocking drug - Wikipedia

    en.wikipedia.org/wiki/Cholinergic_blocking_drug

    The name Belladonna, meaning beautiful ladies, was derived from women using berry juice from the plant cosmetically to dilate their pupils. [ 4 ] The mydriatic effect was studied by the German chemist Friedlieb Ferdinand Runge (1795-1867), in which the active ingredient, atropine , was first discovered by Vaquelin in 1809 and was first isolated ...