Treats
Nausea/vomiting (see n/v tx)
Diabetic gastroparesis
Dosing
10 mg PO/IM q8h PRN
10 mg IV over 1-2 min q8h PRN
Mechanism of action
Most doses
Blocks dopamine receptors
Increases lower esophageal sphincter tone
Enhances upper GI tract response to ACh causing enhanced motility and accelerated gastric emptying without stimulating gastric, biliary or pancreatic secretions
At higher doses
Blocks serotonin receptors in CTZ of the CNS