Why is Canasa prescribed?

Canasa, with generic name Mesalamine, is a rectal suppository prescribed to people diagnosed with ulcerative colitis, proctitis and proctosigmoiditis.

What does it do?

Ulcerative colitis is a condition where there is irritation, swelling, and ulcers in the lining of the large intestine (colon) and rectum, causing recurrent abdominal pain, diarrhea, rectal pain, and bleeding. Proctitis can be described as the swelling of the rectum and proctosigmoiditis as the swelling of the rectum and sigmoid colon. Mesalamine is an anti-inflammatory agent that reduces the inflammation of the lining of the large intestines and rectum, controlling these symptoms.

How should I use it?

Canasa is currently available as 500mg and 1000mg rectal suppositories inserted after bowel movement. Follow the instructions that come with the prescription label and ask your pharmacist or doctor regarding its use.

The dosage strength and frequency depend on every patient’s condition and the doctor’s prescription. It is imperative that you do not self-medicate and only use this drug after consulting with your doctor or pharmacist to determine the best dosage and dosing schedule for the treatment of your condition.

What if I missed a dose?

The proper use of medications is needed to achieve the desired effect of any drug. As much as possible, strictly follow your doctor’s prescribed dosing schedule. If you miss a dose, administer it immediately. However, if it’s close to the next dose, skip the missed dose and proceed with the regular dosing schedule. Never administer two doses at the same time to make up for a missed dose, unless told otherwise.

What are the special precautions before using Canasa?

Canasa and other rectal suppositories can stain clothes and other fabrics. Take caution to prevent staining.

Inform your doctor about all the medications you are taking. Discuss your current and previous medical history and any allergic reactions to Canasa or any other ingredients included in the manufacture of this medication.

Ask a pharmacist or respiratory therapist for instructions on using inhalers properly. Pediatric patients should be assisted when administering this medication.

Inform your doctor if you had any form of surgery or if you are planning to get one.

For the drug label information of Canasa, click here.

Does it have any side effects?

It is important to note that all drugs have corresponding side effects and adverse reactions. Additional information may be obtained when you ask your doctor or pharmacist.

Common side effects may include:
• Leg or joint pain
• Heartburn
• Flatulence
• Dizziness
• Acne
• Rectal pain
• Hair loss

Serious side effects may include:
• Difficulty breathing
• Chest pain

Is it safe to use it with another drug?

Some drug interactions may cause life-threatening reactions when used with other medications. Immediately inform your doctor if you are taking Canasa with any of the following medications:

• Adefovir
• Amphotericin B
• Bacitracin
• Botulism immunoglobulin
• Bromfenac
• Celebrex
• Cidofovir
• CMV immunoglobulin
• Coumadin
• Deferasirox
• Diatrizoate
• Entecavir
• Etodolac
• Flucytosine
• Foscarnet
• Glimepiride
• Glipizide
• Ibuprofen
• Immune globulin intravenous or subcutaneous
• Ketoprofen
• Metrizamide
• Naproxen
• Prograf
• Rapamune
• Restasis
• RSV immune globulin
• Rho (d) immune globulin
• Varicella vaccine
• Zoledronic acid

Ask your doctor or pharmacist for other possible interactions not listed within this section.

How should I store it?

Keep Canasa in its original packaging in a clean environment away from excessive heat and moisture. Keep out of reach of children.

What action should I take in case of overdose?

Immediately call an ambulance and seek immediate medical attention to prevent further complications or possible death

Is it safe for pregnant or breastfeeding women?

Canasa is acceptable for use in pregnant women, women trying to get pregnant, and breastfeeding women, only of the benefit outweighs the risks associated with its use. Hence, the potential risks and benefits of using Canasa in pregnant or breastfeeding infants should be carefully considered.

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