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Doctor's Best, Niacin, Time-Released With Niaxtend, 500 mg, 120 Tablets

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In Stock
  • Expiration Date: Oct 2020
  • Shipping Weight: 0.24 lbs (0.11 kg)
  • Product Code: DRB-00242
  • UPC Code: 753950002425
  • Package Quantity: 120 Tablets
  • Dimensions: 2.1 x 2.1 x 3.7 in, 0.2 lbs (0.09 kg)
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Product Overview


  • Science-Based Nutrition
  • Extended-Release Niacin
  • Helps Promote Cardiovascular Health
  • 8-Hour Extended-Release
  • No/Low Flush
  • Dietary Supplement
  • Vegan
  • Non-GMO
  • Gluten-Free

Niacin Time-release with NiaXtend provides niacin in an 8-hour extended-release form that may help avoid the uncomfortable skin flushing that commonly accompanies other forms of niacin. Approximately 200 coenzymes are comprised as niacin that play pivotal roles in metabolism and energy production within the body. Additionally, research suggests that niacin, in combination with a well-balanced diet, may help maintain healthy cholesterol levels that are already within the normal range.

Suggested Use

Take 1 tablet with food, one to two times daily, or as recommended by a nutritionally-informed physician.

Other Ingredients

Vegetable waxes (rice bran and/or carnauba wax), stearic acid, magnesium stearate (vegetable source), silica.


Caution: Temporary flushing, itching or warming of the skin may occur upon initial use. If you are under medical supervision, have liver dysfunction, gout, or are pregnant or nursing, consult your physician before taking this product.

Store in a cool, dry place.

Supplement Facts
Serving Size: 1 tablet
Servings Per Container: 120 servings
  Amount Per Serving % Daily Value
Niacin (as nicotinic acid) 500 mg 2500%
† Daily Value not established.
iHerb Customer Reviews

No flush

Posted by 5420244518106950109 on May 03, 2016

Nice to take B6 without going red in the process.

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Posted by 5536595171908109527 on Jul 10, 2015

It does not say so clearly on the bottle- but this is time released niacin which could cause LIVER DAMAGE!!!! I prefer to take the regular fast-acting niacin which does not have those side effects!!!!

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A basic niacin

Posted by Reviewer1612446 on Apr 24, 2015

This is just a basic niacin. The tablets are reasonably small, which is nice.

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Take Niacin to raise HDL and lower triclycerides !!

Posted by Sickness-ELIMINATOR on Dec 21, 2013

I have high triglycerides and low HDL. 500mg Niacin is the best treatment for lowering Triglycerides and raising HDL. Since niacin is not a patentable pharmaceutical product, physicians are many times not aware of the value of treating this condition with niacin. . . . You can find other products I use on my Page! I use only products that have Scientifically Proven benefits (or taste good).

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Posted by Reviewer2060826 on May 25, 2013

I'm switching to another brand, because this sometimes gives me a flush that itches and looks like hives (for about half an hour).

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