Antibiotic stewardship is essential in clinical practice because it reduces inappropriate use of antibiotics, which helps prevent the development of antibiotic resistance. By ensuring antibiotics are used only when necessary and with the correct choice, dose, and duration, stewardship programs improve patient outcomes and limit the spread of resistant organisms. This approach also preserves the effectiveness of existing antibiotics for future patients. Therefore, the primary goal of antibiotic stewardship is to promote responsible antibiotic use, not to increase costs or limit availability.

Reference: Principles and Practice of Infectious Diseases, Mandell, Douglas, and Bennett, 9th Edition.