Taking too much ibuprofen may cause digestive tract abnormalities, nervous system discomfort, allergic reactions, liver function abnormalities and so on. 1. Abnormalities in the digestive tract: taking too much ibuprofen may damage the gastric mucosa, bringing abdominal pain, diarrhea, nausea, belching (hiccups), vomiting, constipation, dyspepsia and other discomforts, and in serious cases, gastric ulcers, gastric bleeding and other symptoms. 2. Nervous system discomfort: too much ibuprofen may bring drowsiness, easy fatigue, weakness, dizziness, headache and other symptoms. 3. Allergic reaction: some people who take too much ibuprofen are prone to allergic reactions, including skin itching, red rash, facial edema, breathing difficulties, and in severe cases, shock. 4. Abnormal liver function: taking too much ibuprofen may lead to elevated aminotransferase, impairing liver function. 5. Other: taking too much ibuprofen may also have sudden weight gain, frequent urination at night, tinnitus, blurred vision, high blood pressure, heart failure, puffy eyelids, aggravation of asthma, coma and other discomforts. When taking ibuprofen orally, you must be guided by a professional physician, and you should not use the drug on your own, let alone increase the dosage on your own, so as not to lead to drug poisoning.