The benefits of nonflush niacin include boosting niacin levels in the body, reduction of cholesterol and triglycerides, treatment of coronary artery disease, and reducing the risk of recurring heart attacks, says Everyday Health. It also enhances blood circulation, states Drugs.com
Taking flush-free niacin prevents and treats niacin deficiency, the causes of which include alcohol abuse, poor diet, certain medications such as isoniazid and malabsorption syndrome, notes HealthCentral. Niacin helps reduce the risk of recurring heart attacks in patients who have previously suffered from heart attacks, adds Everyday Health. Nonflush niacin dilates the blood vessels and prevents clotting, thus improving blood circulation, and lowers cholesterol and triglycerides by preventing lipid formation, explains Drugs.com.
Patients who have health problems such as gallbladder disease, glaucoma, gout and kidney disease should seek a doctor's opinion before using niacin, reports HealthCentral. Patients suffering from severe liver disease, active bleeding, stomach ulcer or who are allergic to niacin should avoid niacin, claims Everyday Health. Taking alcohol or hot beverages soon after taking niacin can cause flushing. Pregnant and nursing mothers should not use niacin without a doctor's advice, as it can harm unborn and breast-feeding babies.
Side effects of flush-free niacin include severe abdominal pain, dark urine, persistent nausea and vomiting, and muscle pain. Allergic reactions to niacin include severe dizziness, persistent itching or swelling, and rash. Individuals should consult a doctor in the case of these side effects, advises HealthCentral.