Itopride works about half an hour after taking the medicine. Itopride is a gastrointestinal stimulant drug that can be used to relieve various symptoms caused by functional dyspepsia, such as epigastric discomfort, lack of appetite, fullness after meals, nausea and vomiting. Itopride is contraindicated in patients with gastrointestinal bleeding, hypersensitivity to the drug, mechanical obstruction or perforation. Itopride usually takes effect in about half an hour after taking the drug. Adverse reactions such as neuropathic headache, tingling, diarrhea, abdominal pain, constipation, elevated prolactin, and rash, fever, itching, etc. may occur after taking the drug. Patients who need to use Itopride should be treated with medication under the guidance of a doctor, and should not blindly use the medication on their own.