Like swelling of the face/throat/tongue or trouble breathing
9 Sep 2009
The symptoms you have described could be the signs of an allergic reaction and you should get medical assistance immediately.
If you experience any of the following serious side effects, stop taking nicotinic acid and seek emergency medical attention:
*an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
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1 answer • 17 Jan 2011
After 6 months of Niaspan 500 without any real side effects I was increased to 1000 one week ago. I?
... take it at night and haven't slept at all. All night I suffer with flushing and itching. It is like a million bugs are crawling on me, ...
2 answers • 20 Aug 2011
Side effects of stop taking 1000 mg niaspain
1 answer • 25 Apr 2013
I took NIASPAN 500 MG AND NOW WITH NIASPAN 1000 MG. i experience this kind of episodes
2 answers • 18 Jan 2014