Generic Name: Mesalamine

  • What is Canasa?

    Canasa is a suppository medicine used to treat ulcerative proctitis, which is an inflammatory disease of the lining of the rectum. Canasa works inside your rectum to help reduce bleeding, mucous, and bloody diarrhea caused by the inflammation of your rectal area.

  • What is the most important information I should know about Canasa?

    Rarely, you can experience a serious reaction to Canasa that includes cramps, sharp abdominal pain, bloody diarrhea, fever, headache, or rash. Tell your doctor immediately if you get any of these symptoms.

    Canasa can cause stains on things it touches. Keep it away from clothing and other fabrics, flooring, painted surfaces, marble, granite, plastics, or enamel.

  • Who should not take Canasa?

    Do not use Canasa if you are allergic to it, any of its ingredients, or salicylates, including aspirin.

  • What should I tell my doctor before I take the first dose of Canasa?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Canasa. Also, talk to your doctor about your complete medical history, especially if you have allergies, kidney problems, pancreatitis (inflammation of the pancreas), pericarditis (a condition in which the membrane surrounding the heart becomes inflamed), are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: The recommended dose is 1 suppository once a day, administered rectally at bedtime.

  • How should I take Canasa?

    Use Canasa exactly as prescribed by your doctor. You can use a lubricating gel on the suppository. Canasa should stay in the rectum for 1-3 hours or longer to get the maximum benefit. Canasa is usually used for 3-6 weeks although its effects can be seen within 3-21 days. Keep using Canasa as long as your doctor tells you to use it, even if you feel better.

    Please review the instructions that came with your prescription on how to properly use Canasa.

  • What should I avoid while taking Canasa?

    Do not handle the suppository too much. It may begin to melt from the heat from your hands and body.

  • What are possible food and drug interactions associated with Canasa?

    No significant interactions have been reported with Canasa at this time. However, always tell your doctor about any medicines you take, including over-the-counter medications, vitamins, and herbal supplements.

  • What are the possible side effects of Canasa?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: abdominal pain, acne (pimples), diarrhea, dizziness, fever, gas, hair loss, headache, nausea, rectal pain

  • Can I receive Canasa if I am pregnant or breastfeeding?

    The effects of Canasa during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

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

    Canasa should be given under special circumstances determined by your doctor. If you miss your scheduled dose, contact your doctor or pharmacist for advice.

  • How should I store Canasa?

    Store at room temperature or in the refrigerator. Protect from direct heat, light, or humidity.