Abstract: Disclosed are enema solutions or suspensions comprising 5-aminosalicylic acid, or a pharmaceutically acceptable salt or ester thereof, and N-acetylcysteine, or a pharmaceutically acceptable salt or ester thereof, methods of preparing the same, and bottles and packages containing the same.

Abstract: Disclosed are pharmaceutical compositions comprising immediate release and sustained release formulations of 5-aminosalicylic acid, or a pharmaceutically acceptable salt or ester thereof, and/or N-acetylcysteine, or a pharmaceutically acceptable salt or ester thereof, for release in the lower gastrointestinal tract.

Abstract: Inflammatory bowel diseases are represented by two idiopathic disorders, which include ulcerative colitis and Crohn's disease. Ulcerative colitis is restricted to the colon and involves uncertain and inflammation of the lining (mucosa) of the large intestine. Crohn's disease, on the other hand, can involve the mucosa of the small and/or large intestine and may involve deeper layers of the bowel wall. The present invention in a preferred embodiment is a combination of 5-aminosalicylic acid or 4-aminosalicylic acid and one or more antioxidants (e.g., N-acetylcysteine) for treating such inflammatory bowel diseases.

Abstract: Inflammatory bowel diseases are represented by two idiopathic disorders, which include ulcerative colitis and Crohn's disease. Ulcerative colitis is restricted to the colon and involves uncertain and inflammation of the lining (mucosa) of the large intestine. Crohn's disease, on the other hand, can involve the mucosa of the small and/or large intestine and may involve deeper layers of the bowel wall. The present invention contains N-acetylcysteine disposed in a pharmaceutically acceptable carrier for oral or rectal delivery for treating such inflammatory bowel diseases by topical application within the colon.

Abstract: Inflammatory bowel diseases are represented by two idiopathic disorders, which include ulcerative colitis and Crohn's disease. Ulcerative colitis is restricted to the colon and involves uncertain and inflammation of the lining (mucosa) of the large intestine. Crohn's disease, on the other hand, can involve the mucosa of the small and/or large intestine and may involve deeper layers of the bowel wall. The present invention is a combination of 5-aminosalicylic acid and one or more antioxidants (e.g., N-acetylcysteine) for treating such inflammatory bowel diseases.