Information on this website is not intended to replace the advice of your physician(s). Please consider what you learn here a starting point for a conversation with your physician. All care of ulcerative proctitis and related conditions must be guided by the appropriate healthcare professional. CANASA^® is a prescription drug.

CANASA^® is available by prescription only.

CANASA^® 1000 mg Suppositories are indicated for the treatment of active ulcerative proctitis.

CANASA^® is contraindicated in patients who have demonstrated hypersensitivity to mesalamine (5-aminosalicylic acid) or to the suppository vehicle [saturated fatty acid esters (Hard Fat, NF)], or to salicylates (including Aspirin).

As with other mesalamine containing products, less common but possibly serious side effects such as acute intolerance syndrome, pericarditis and pancolitis may occur.

Patients on CANASA^® 1000 mg, especially those on concurrent oral products which contain or release mesalamine and those with pre-existing renal disease, should be carefully monitored with urinalysis, BUN and creatinine testing.

Caution should be exercised when CANASA^® suppositories are initially used in patients known to be allergic to sulfasalazine.

CANASA^® was generally well tolerated in clinical studies. The most common side effects of CANASA^® are dizziness (3%), rectal pain (1.8%), fever (1.2%), rash (1.2%), acne (1.2%), and colitis (1.2%).

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit http://www.FDA.gov/medwatch, or call 1-800-FDA-1088.