PENTASA from Canada (5-ASA) is an anti-inflammatory used to treat ulcerative colitis.PENTASA from Canada (5-ASA) may also be used for other conditions as determined by your doctor.

Pentasa Extended Release Side Effects:

PENTASA side effects, that may go away during treatment, include mild diarrhea, dizziness, mild headache, runny or stuffy nose, sneezing, acne, back or joint pain, gas, heartburn, loss of appetite, hair loss, or mild abdominal discomfort or pain. If PENTASA side effects continue or are bothersome, check with your doctor. CHECK WITH YOUR DOCTOR RIGHT AWAY if you experience PENTASA side effects like severe cramping, severe abdominal pain, bloody diarrhea, severe headache, or rash. If you notice other PENTASA side effects not listed above, contact your doctor, nurse, or pharmacist.