IMPORTANT RISK INFORMATION
Do not use CANASA if you are:
allergic to medicines that contain salicylates, including aspirin.
allergic to mesalamine or any of the ingredients in CANASA. See Patient Information
in the full Prescribing Information for a complete list of ingredients in CANASA.
Ask your doctor if you are not sure if your medicine is listed.
Before using CANASA, tell your doctor if you:
have a history of allergic reaction to the medicine sulfasalazine (Azulfidine).
have kidney problems.
have ever had inflammation of the sac around your heart (pericarditis).
have liver problems.
have any other medical conditions.
are pregnant or plan to become pregnant. It is not known if CANASA can harm your
are breastfeeding or plan to breastfeed. CANASA can pass into your breast milk.
Talk to your doctor about the best way to feed your baby if you use CANASA.
Tell your doctor about all the medicines you take, including prescription and
over-the-counter medicines, vitamins, and herbal supplements. Taking CANASA with nonsteroidal
anti-inflammatory drugs (NSAIDs) may cause kidney problems. Taking CANASA with azathioprine or
6-mercaptopurine may cause blood problems. Your doctor may do certain tests during treatment
What are the possible side effects of CANASA?
CANASA may cause serious side effects, including:
Your doctor will do certain tests before you start using CANASA and during your
Acute Intolerance Syndrome or Other Allergic Reactions.
When this happens, it is usually in people who have had an allergic reaction to
sulfasalazine. Stop using CANASA and tell your doctor right away if you get any
of these symptoms: cramps, stomach (abdominal) pain, bloody diarrhea, chest pain,
decrease in the amount of urine, fever, headache, rash, shortness of breath, or
This can happen in people who have a history of liver problems and have taken other
medicines that contain mesalamine. Tell your doctor right away if you get any of
these symptoms while using CANASA: yellowing of your eyes, itchy skin, feeling very
tired, flu-like symptoms, nausea or vomiting.
The most common side effects of CANASA include: dizziness, acne, inflammation of
the large intestine (colitis), rectal pain, fever, and rash.
Tell your doctor if you have any side effect that bothers you or does not go away. These are not
all of the possible side effects of CANASA.
What is CANASA?
CANASA (mesalamine) 1000 mg rectal suppository is a prescription medicine used to treat adults
with active ulcerative proctitis (ulcerative rectal colitis).
It is not known if CANASA is safe and effective in children.
Please also see the
full Prescribing Information.
Allergan® and its design are trademarks of Allergan, Inc.
CANASA® is a registered trademark of Aptalis Pharma Canada ULC,
an Allergan affiliate.
© 2017 Allergan. All rights reserved. CAN41968_v3 07/17
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The products discussed on this site may have different product labeling outside of the United States.
The health information described in this site is provided for educational purposes only and
is not intended to substitute for discussions with a healthcare provider.