Budesonide (brand names: Entocort EC®, Uceris®, Pulmicort®, Rhinocort®) is a systemic glucocorticoid (steroid) used to treat inflammatory bowel disease (IBD) in dogs and cats, especially when other steroids are ineffective, or the pet cannot tolerate steroids. It may also be used to treat sinus inflammation or asthma.

The inhaled form is used in the long-term management of asthma and chronic obstructive pulmonary disease (COPD). The nasal spray is used for allergic rhinitis and nasal polyps. The pills in a delayed release form and rectal forms may be used for inflammatory bowel disease including Crohn’s disease, ulcerative colitis, and microscopic colitis.