discribe the gastointestinal agents and classify with suitable examples and composition with brand names explain in essay type
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Answer:
Medications for gastrointestinal diseases and symptoms include prescription and nonprescription drugs, conventional and unconventional agents, simple small molecules, complex macromolecules and large recombinant proteins. These medications are can be classified based upon their use: drugs for nausea and vomiting (antiemetics), prokinetic agents, laxatives, antidiarrheal agents, drugs for acid peptic disease, drugs for irritable bowel syndrome, inflammatory bowel disease and, of course, miscellaneous. Agents used for gastrointestinal disease rarely cause liver injury. One reason for this is that they are often locally active and result in little systemic exposure. The immunomodulatory agents used to treat inflammatory bowel disease are an exception, being given systemically, often intravenously and capable of causing liver injury, although not very frequently.