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Canasa

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Canasa

CANASA®
(mesalamine) Rectal Suppositories

DRUG DESCRIPTION

The active ingredient in CANASA 1000 mg rectal suppositories is mesalamine, also known as mesalazine or 5-aminosalicylic acid (5-ASA). Chemically, mesalamine is 5-amino-2-hydroxybenzoic acid, and is classified as an anti-inflammatory drug. Each CANASA rectal suppository contains 1000 mg of mesalamine (USP) in a base of Hard Fat, NF.

The empirical formula is C7H7NO3, representing a molecular weight of 153.14. The structural formula is:

CANASA® (mesalamine) Structural Formula Illustration

What are the possible side effects of mesalamine rectal (Canasa, Canasa Pac, Rowasa)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using mesalamine rectal and call your doctor at once if you have severe stomach pain, cramping, fever, headache, and bloody diarrhea.

Less serious side effects may include:

  • mild nausea, vomiting, stomach cramps, diarrhea, gas;
  • fever, sore throat, or other flu symptoms;
  • rectal pain, constipation;
  • headache or dizziness;
  • tired feeling;...

Read All Potential Side Effects and See Pictures of Canasa »

What are the precautions when taking mesalamine (Canasa)?

Before using this medication, tell your doctor or pharmacist if you are allergic to it; or to other medications that are broken down into mesalamine (such as sulfasalazine, olsalazine); or to other salicylates (such as aspirin); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney problems, pancreas problems (pancreatitis), inflammation of the sac around the heart (pericarditis).

This medication is similar to aspirin. Children and teenagers should not take aspirin or aspirin-related medications (such as salicylates) if they have chickenpox, flu,...

Read All Potential Precautions of Canasa »

Last reviewed on RxList: 1/6/2014
This monograph has been modified to include the generic and brand name in many instances.

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Canasa - User Reviews

Canasa User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Canasa sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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