A member asked:

What is flush free niacin?

6 doctors weighed in across 4 answers

Long acting: Niacin is useful to lower cholesterol level and has some other uses. Taken as a standard pill, it commonly causes an itchy flushing starting about 1/2 hour after swallowing. "flush free" is formulated usually with delayed release so these side effects are absent or minimized. This does not affect the potency.

Answered 12/14/2017

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Dr. William Cromwell answered

Specializes in Clinical Lipidology

Modified niacin: Flush free Niacin can either refer to a slow release preparation or inositol. Slow release preparations are better tolerated than immediate release products, but the lipid lowering effects are somewhat less potent. For comparable efficacy a higher dose of slow release is usually needed. Liver function should be monitored at higher dosages. Inositol does not improve lipids and should be avoided.

Answered 3/3/2020

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Niacin.: Supplementing with 2000-3000mg of flush free Niacin daily can help to control your cholesterol levels quite nicely, even increasing your HDL and converting your LDL to a less harmful subtype. As a negative, Niacin can cause facial flushing and redness so get the flush free variety. And have your liver enzyme values monitored, as they can be affected by Niacin use.

Answered 4/18/2017

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Niacin.: Supplementing with 2000-3000mg of flush free Niacin daily can help to control your cholesterol levels quite nicely, even increasing your HDL and converting your LDL to a less harmful subtype. As a negative, Niacin can cause facial flushing and redness so get the flush free variety. And have your liver enzyme values monitored, as they can be affected by Niacin use.

Answered 2/27/2015

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