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Nicotinamide is used to treat niacin deficiency because it does not cause the flushing adverse reaction seen with niacin. Nicotinamide may be toxic to the liver at doses exceeding 3 g/day for adults. [73] Prescription products can be immediate release (Niacor, 500 mg tablets) or extended release (Niaspan, 500 and 1000 mg tablets). Niaspan has a ...
Inositol nicotinate, also known as inositol hexanicotinate or inositol hexaniacinate, is a compound of niacin (vitamin B3) and inositol. It is marketed in the United States as a "no-flush" form of niacin in dietary supplements. [1]
The EFSA UL for adults is set at 10 mg/day for nicotinic acid to avoid the skin flush reaction, and 900 mg/day for nicotinamide that doesn't cause flushing. [31] Both the DRI and DRV describe amounts needed as niacin equivalents (NE), calculated as 1 mg NE = 1 mg niacin or 60 mg of the essential amino acid tryptophan.
Taking 325 mg of aspirin 20–30 minutes prior to taking nicotinic acid has also been proven to prevent flushing in 90% of patients, presumably by suppressing prostaglandin synthesis, [4] but this medication also increases the risk of gastrointestinal bleeding, [5] though the increased risk is less than 1 percent.
Nicotinamide (INN, BAN UK [2]) or niacinamide (USAN US) is a form of vitamin B 3 found in food and used as a dietary supplement and medication. [3] [4] [5] As a supplement, it is used orally (swallowed by mouth) to prevent and treat pellagra (niacin deficiency). [4]
As with niacin and related drugs, the most common adverse effects are flushing (associated with prostaglandin D 2 [2]) and gastrointestinal disturbances such as indigestion, which occur in at least 10% of patients. [1] Flushing can be reduced by taking aspirin 20 to 30 minutes before taking acipimox. Palpitations have also been described.
Niacin is available as a prescription product, either immediate release (500 mg tablets; prescribed up to 3,000 mg/day) or extended release (500 and 1,000 mg tablets; prescribed up to 2,000 mg/day). 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 ...
Niacin products sold as "no-flush", i.e. not having side-effects such as "niacin flush", do not, however, contain free nicotinic acid and are therefore ineffective at raising HDL, while products sold as "sustained-release" may contain free nicotinic acid, but "some brands are hepatotoxic"; therefore the recommended form of niacin for raising ...
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