What are the side effects of niacin

Niacin may cause side effects such as skin flushing, itching, and high blood sugar.
Niacin is indicated for the prevention or treatment of diseases such as niacin deficiency and hyperglycemia, as well as for the treatment of diseases such as pulmonary embolism and frostbite.
Adverse effects such as skin flushing, itching, rash, and headache may occur with niacin. Some patients also experience side effects such as hyperglycemia, hyperuricemia, and hepatotoxic reactions. In addition excessive use of niacin may also cause patients to experience adverse reactions such as diarrhea, vomiting, nausea, dry skin, fatigue, and cardiac arrhythmia.
Patients should use niacin under the guidance of a doctor and not blindly. In addition, patients who are allergic to the use of niacin, patients with gastrointestinal diseases, and patients with liver diseases should not use niacin, or it will lead to adverse symptoms or aggravate their own conditions.
During the use of niacin, it is recommended that the diet should be light and nutritious, avoiding spicy, stimulating and too greasy food.