Can niacinamide chewable tablets be taken long-term?

Generally speaking, niacinamide chewable tablets refer to niacinamide tablets, which should not be taken long-term. Niacinamide tablets are a vitamin-type medication used to prevent and treat pellagra and other conditions caused by niacin deficiency, and should be taken only under a doctor's guidance. The specific analysis is as follows:

The main ingredient of niacinamide tablets is niacinamide, primarily used for treating pellagra and other diseases due to niacin deficiency. Some patients may experience symptoms such as skin itching, redness, swelling, nausea, or vomiting after taking the tablets; however, these symptoms usually resolve spontaneously after discontinuation of the drug. Nevertheless, long-term use of niacinamide tablets may lead to excessive levels of niacinamide in the body, potentially causing various adverse effects. In severe cases, it may even result in abnormal liver function. Therefore, niacinamide tablets are generally not recommended for prolonged use.

In addition, patients who are allergic to niacinamide tablets must avoid taking them to prevent allergic reactions. In daily life, patients can moderately consume fresh vegetables and fruits such as tomatoes, carrots, apples, and oranges, which help supplement essential nutrients and support recovery.

If a patient experiences any discomfort after taking niacinamide tablets, it is advisable to seek medical attention at a hospital promptly to avoid delaying treatment.