Irritable Bowel Syndrome Treatment Market, By Type (Irritable Bowel Syndrome with Constipation, Irritable Bowel Syndrome with Diarrhea, and Mixed Irritable Bowel Syndrome), By Indication (Abdominal Pain, Bloating, Constipation and Diarrhea, Altered Bowel Habits, and Others), By Drug Class (Antispasmodics, Laxatives, Antidiarrheal Medications, 5-HT3 Receptor Antagonists, Guanylate Cyclase-C Agonists, Anticholinergic, Probiotics, Antidepressants, Antibiotics, Dietary Supplements, and Others), By Route of Administration (Oral, Rectal, and Parenteral), By Distribution Channel (Hospital Pharmacy, Retail Pharmacy, and Online Pharmacy), By Geography (North America, Latin America, Asia Pacific, Europe, Middle East, and Africa)