Avoid a high-fat diet with afatinib maleate tablets. Afatinib Maleate Tablet belongs to the group of tyrosine kinase inhibitors and is commonly used in the treatment of lung cancer. This medicine should not be taken with food, should be taken at least 3 hours after eating or at least 1 hour before eating, and swallowed whole with water. The maximum blood concentration of afatinib is reduced by 50% when the drug is taken with a high-fat diet, so avoid fried foods and other foods and eat a light diet. Common adverse reactions to this drug include diarrhea, erythematous and acne-like rashes, etc. Reducing the dose generally reduces the incidence of common adverse reactions. Avoid receiving any vaccinations while taking this drug, as this may cause infection or vaccination failure. This drug is a prescription drug and is contraindicated in patients with known hypersensitivity to afatinib or any excipients.