Nicotinamide tablets can be used to prevent and control pellagra and other niacin deficiency diseases, and can also be used to treat stomatitis, lingual inflammation and other diseases. Nicotinamide tablets is a vitamin drug, can be used for the prevention and treatment of pellagra, stomatitis, lingual inflammation and other diseases, can also be used for the treatment of viral myocarditis, coronary heart disease, rheumatic heart disease, a few digitalis intoxication and other concomitant cardiac arrhythmia. The drug should not be used by people who are allergic to nicotinamide tablets, and women in early pregnancy and allergic body should be cautious; dizziness, nausea, loss of appetite, epigastric discomfort and other adverse reactions may occur after the use of the drug; overdose of the drug in early pregnancy has the possibility of teratogenicity. Patients who need to use nicotinamide tablets for treatment are recommended to use the drug under the guidance of a doctor.