Recognizing that the value of pharmacists extends beyond clinical interventions to include cost-effective healthcare solutions and compassionate patient-centered care, this new series of handbooks showcases the expanded roles and responsibilities of pharmacists. It is the first of its kind to provide comprehensive information about evidence-based pharmacist care across a wide range of healthcare issues, providing the latest research, guidelines, and up-to-date best practices. Volume 3: Gastrointestinal Diseases and Disorders underscores the indispensable role pharmacists play in healthcare, particularly in the management of gastrointestinal disorders, where their expertise can significantly influence patient outcomes. This book covers constipation, diarrhea, inflammatory bowel disease, gastroesophageal reflux disease (GERD), liver diseases, pancreatitis, portal hypertension and cirrhosis, upper gastrointestinal bleeding, and celiac disease. Volumes in Handbook of Evidence-Based Pharmacist Care Volume 1: Cardiovascular Diseases Volume 2: Endocrine, Respiratory, and Renal Diseases and Disorders Volume 3: Gastrointestinal Diseases and Disorders Volume 4: Arthritis and Psychiatric Diseases and Disorders Volume 5: System-Specific Infections Volume 6: Widespread and Transmissible Infections Volume 7: Skin Diseases and Conditions Volume 8: Neurological, Hematological, and Urological Diseases and Disorders Volume 9: Oncological Diseases and Disorders Volume 10: Diseases and Disorders of Special Populations Volume 11: Pharmacist Care in Special Services Volume 12: Advanced Practices in Pharmacist Care Volume 13: Pharmacist Skills and Competencies Volume 14: Clinical Pharmacy, Advanced Pharmacist Practice, and Pharmacy Clinics: Case Studies from Around the World