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Aug 10, 2023 · Serious side effects are most likely if you take between 2,000 to 6,000 mg of niacin a day. If you think you might have overdosed on niacin, seek medical attention immediately. If you have liver disease, peptic ulcer disease or severe low blood pressure (hypotension), don't take large amounts of niacin.
unusually fast, slow, or irregular heartbeat. Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional. Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Jul 17, 2011 · Check with your doctor immediately if any of the following side effects occur while taking niacin: Less common. Darkening of urine; light gray-colored stools; loss of appetite; severe stomach pain; yellow eyes or skin; Other side effects of Niacin. Some side effects of niacin may occur that usually do not need medical attention. These side ...
May 22, 2024 · For example, a dose between 2,000 and 6,000 milligrams of niacin a day can cause serious side effects. Symptoms of a niacin overdose include: Rapid heartbeat; Severe skin flushing...
Nov 16, 2022 · Niacin supplement side effects include flushing, headache, dizziness, and low blood pressure. If you have side effects, you may want to try a different formula or start with a smaller dose. Don't take high doses of niacin.
Oct 14, 2017 · Serious side effects. Call your doctor right away if you have serious side effects. Call 911 if your symptoms feel life-threatening or if you think you’re having a medical emergency.
Mar 6, 2024 · If niacin is consumed in high doses through supplements, it can lead to toxicity which can potentially cause digestive symptoms like nausea, vomiting, and even liver damage. Niacin , also known as vitamin B3, is made and used by your body to help convert foods that you eat into the energy you need.
