Niacin flush occurs after taking high doses of supplemental niacin. Symptoms include red, itchy skin around the face, neck, and upper chest. Niacin flush may be uncomfortable but is harmless and ...

And there’s bad news about side effects as well. Prescription-strength niacin is known to cause itching and flushing. But the study revealed the potential for more serious health issues.

The niacin skin flush response (NSFR) is a physiological reaction that occurs when niacin (vitamin B3) is administered, leading to increased blood flow and a flushing sensation in the skin.

Ezetimibe reduces LDL cholesterol levels, and niacin raises HDL cholesterol levels; however, no previous studies have described the use of these two drugs in combination. Jelesoff and colleagues ...