Metoclopramide is classified as a dopamine antagonist<\/a>. It is also known as a prokinetic agent<\/a> due to its effects on gastrointestinal motility.<\/p>\n Primarily indicated for the treatment of gastroesophageal reflux disease (GERD) and diabetic gastroparesis. It is also used to prevent nausea and vomiting associated with certain medical treatments and conditions.<\/p>\n It works by blocking dopamine receptors in the brain and the gut. This, in turn, enhances the movements of the stomach and intestines, promoting gastric emptying.<\/p>\n Oral tablets and liquid formulations are common. Injectable forms are used in hospital settings. The mode of administration depends on the condition being treated and the patient\u2019s medical needs.<\/p>\n Typical dosing for GERD is 10 to 15 mg up to four times daily, 30 minutes before meals and at bedtime. For diabetic gastroparesis, the dose is generally 10 mg taken 30 minutes before each meal and at bedtime for two to eight weeks.<\/p>\n In the elderly, the dose should be reduced due to increased sensitivity to the drug. Pediatric dosing requires careful adjustment based on weight and clinical response.<\/p>\n In the CNS, metoclopramide affects the chemoreceptor trigger zone (CTZ) to alleviate nausea. It also crosses the blood-brain barrier, acting on dopamine receptors to exert its therapeutic effects.<\/p>\n Increases the tone and amplitude of gastric contractions. Facilitates the transit of gastrointestinal contents and enhances gastric emptying without affecting gastric secretions.<\/p>\n Can increase the release of prolactin due to its dopamine antagonist properties. This effect may lead to galactorrhea, gynecomastia, or menstrual disturbances.<\/p>\n These include acute dystonia, akathisia, and parkinsonism. Symptoms may occur within a few days of initiating therapy.<\/p>\n Common gastrointestinal side effects include cramps, diarrhea, and constipation. Reduced bowel transit time is often reported during treatment.<\/p>\n May cause symptoms such as anxiety, restlessness, and depression. Monitor patients for changes in mood and behavior.<\/p>\nIndications for Use<\/h2>\n
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Gastrointestinal Tract<\/h2>\n
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