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What is Canasa?

Canasa contains mesalamine and is prescribed to treat ulcerative proctitis. Canasa is a suppository medication which is taken rectally. Mesalamine is an anti-inflammatory medication which works by blocking the production of natural chemicals which cause pain and swelling thereby decreasing irritation and swelling in your colon. Taking Canasa suppositories can help to decrease rectal bleeding, your number of stools and the amount of mucus and blood within your stools.

Always read the medication information and instructions before using this medication.
Always follow your doctor’s directions.

  • Canasa is typically taken once daily before bed.
  • If possible, you should have a bowel movement before using Canasa.
  • Lie on your side, bringing your topside knee to your chest. Insert the suppository into your rectum using your finger, pointed end first.
  • Use gentle pressure in order to insert the suppository completely. Try to keep it in place for 1-3 hours or longer if possible.
  • If it helps, you may put a small amount of Vaseline or other lubricant jelly onto the tip of the suppository.
  • Try to handle the suppository as little as possible to avoid it melting and wash your hands thoroughly after using this medication.
  • Continue to use Canasa for the whole length of prescription, even if your symptoms improve.


Make sure to tell your doctor:

  • If you have any drug or other allergies.
  • If you take any other prescription or over-the-counter medications.
  • Your medical history especially of heart problems, liver disease, kidney disease or asthma.
  • If you are pregnant or planning pregnancy.
  • If you are breast-feeding.

Other information you should also know:

  • Children and teenagers should not use this medication if they have just received a live vaccine or if they have flu, chickenpox or any undiagnosed illness.

Side Effects of Canasa

Common side effects of Canasa:

  • Stomach pain, nausea or gas.
  • Fever, cold or flu symptoms.
  • Tiredness.

If you have any of the following Canasa side effects, seek medical help:

  • Severe stomach pain or cramping.
  • Bloody diarrhea.
  • Fever.
  • Headaches.
  • Skin rash.
  • Symptoms of an allergic reaction including difficulty breathing, hives or swelling in your face, lips or throat.


What should I do if I miss a dose of Canasa?

If you miss a dose of Canasa, skip that dose and wait until your next bedtime to use Canasa.

What else is Canasa called?

Canasa is also known as Salofalk internationally. Salofalk is the same brand name medication with a different name internationally and is not a generic alternative medication.

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Jennifer L. F

April 15, 2023

Excellent service and price. My last re-order agent spoke VERY clearly and I appreciated it immensely.


March 22, 2023

I can always trust True Canada Pharmacy to deliver a quality product. Their staff is very helpful and competent. I have used them for several years and have been most pleased with their service and ease of reordering. Highly recommend them for your Canadian pharmacy needs.

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March 15, 2023

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March 15, 2023

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March 14, 2023

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March 14, 2023

The reps are always willing to please & respond to my order.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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