Generally it is recommended to take bismuth aluminate about 30 minutes after meal, clinically bismuth aluminate is mainly used to treat chronic gastritis, gastric ulcer, and duodenal ulcer and other gastrointestinal diseases, bismuth aluminate can form a protective film on the mucosa of stomach and duodenum, which can produce the effect of protecting the gastrointestinal mucosa by isolating the stimulation of food, gastric acid or drugs on the ulcer surface. Therefore, if bismuth aluminate is taken together with food, a large amount of bismuth aluminate will be adsorbed on the food surface, which will reduce the dose of bismuth aluminate that really works and affect the therapeutic effect. Take the medicine with plain water, do not use milk, tea, juice, coffee, etc. Avoid drinking alcohol or drinks containing alcohol, and eat less greasy and fried food to reduce the stimulation to the gastrointestinal tract.