Feeling hungry after taking omeprazole may be due to originally suffering from peptic ulcer, gastroesophageal reflux, etc., there may also be a combination of diabetes, hyperthyroidism and other diseases, but also gastrointestinal adverse reactions, need to comply with the doctor’s instructions to take gastric mucosal protection agents, hypoglycemic drugs, antithyroid drugs, etc. for the treatment of the cause. 1. Pre-existing diseases: If you originally suffer from peptic ulcer, gastroesophageal reflux disease and other diseases, because of indigestion, gastrointestinal dysfunction, may lead to a drop in blood glucose, resulting in the feeling of hunger. For the original disease, we need to take gastric mucous membrane protector, gastrointestinal stimulant, acid-suppressing drugs and so on for the treatment of the cause. 2. Combination of other diseases: If there is a combination of diabetes mellitus, hyperthyroidism and other diseases, because of the decline of pancreatic islet function, thyroid hormone secretion, etc., the patient will be hungry, need to take hypoglycemic drugs for the cause of the disease, anti-thyroid hormone drugs for treatment. 3. Adverse reactions caused by drugs: feeling hungry may also be an adverse reaction to omeprazole, other common gastrointestinal adverse reactions include abdominal pain, acid reflux, constipation and so on. Consider replacing the drug. In addition can not be ruled out that some people will be hungry after eating omeprazole, so it is recommended to consult a clear cause of hunger, to take targeted treatment, so as not to cause adverse effects.