No, but it can cause flushing. And in overdose, vomiting (which also causes flushing.)
My behind
Niacin causes flushing, a reddening and burning of the neck and face.
Never flushing & replacing your anti-freeze/coolant...
Smallpox
It is not dangerous but some people have a sensitivity to it. It causes allergy-like symptoms and flushing in them.
Is that Flushing, New York, -Flushing, Michigan, - or possibly Flushing, Netherlands.
The address of the Flushing is: 41-17 Main Street, Flushing, 11355 M
The address of the East Flushing is: 196-36 Northern Boulevard, Flushing, 11358 3037
Flushing sludge from your engine is not a very smart thing to do. Almost every automotive technician will agree with that. Flushing out an engine causes all the sludge to drain down into the oil pan. Which in turn tends to plug up the oil pick up and causes engine damage.
It depends on the street address. Flushing is in Zip 113. Downtown Flushing is 11355. East Flushing is 11358. Northern Flushing is 11354. Southern Flushing is 11367. You can get the correct zip code at usps.com
It is likely to be a blood pressure problem. Go see your doctor asap.