Colorectal disorders:

Indications for CANASA:

Mild to moderately active ulcerative proctitis.


Retain supp in rectum for at least 1–3hrs. 1g once daily at bedtime. Treat for 3–6 weeks.


Not established.


Sulfasalazine allergy. Discontinue if acute intolerance syndrome is suspected. Conditions predisposing to myocarditis or pericarditis. Atopic dermatitis or eczema: may have more severe photosensitivity reactions. Nephrolithiasis. Ensure adequate hydration. Renal or hepatic impairment. Monitor renal function prior to and periodically during therapy. May stain clothes. Elderly (monitor CBCs, platelets). Pregnancy. Nursing mothers: monitor infants.

Pharmacologic Class:



Increased toxicity with nephrotoxic drugs (eg, NSAIDs). Increased risk for blood disorders, bone marrow failure, and associated complications with azathioprine or 6-mercaptopurine and/or other drugs known to cause myelotoxicity. May cause elevated test results when measuring urinary normetanephrine; consider other alternative assay.

Adverse Reactions:

Dizziness, rectal pain, fever, rash, acne, colitis, headache, flatulence, abdominal pain, diarrhea, nausea; renal impairment, mesalamine-induced acute intolerance syndrome, hypersensitivity reactions; discontinue if occurs.

Generic Availability:


How Supplied:

Supps—30, 42

Pricing for CANASA

1000mg suppository (Qty: 30)
Appx. price $202