1 What is Pentasa?

Brand: Pentasa

Generic: Mesalamine

Pentasa is a drug used in the treatment of active mild to moderate distal ulcerative colitis, proctosigmoiditis or proctitis. This drug is available as a suspension containing mesalamine 4 grams in 60 milliliters.


You should read the product information leaflet before using this medication. If you have any questions, ask your doctor or pharmacist. Use the product according to doctor’s instructions.

Your dosage is based on your medical condition and the way you will respond to treatment.

If you miss a dose, use it as soon as you remember. Continue to use it as prescribed by your doctor or as stated on the package label.


Pentasa may interact with medications such as:

  • Acetazolamide
  • Methotrexate
  • Probenecid

Side Effects:

There are no side effects known aside from a possible allergic reaction in people who have previous or unknown hypersensitivity to the drug.

Watch out for signs of allergic reactions such as:

  • Rash
  • Itching
  • Swelling


Before taking this medication, tell your doctor or pharmacist if you have the following:

  • Allergy to mesalamine
  • Allergy to sulfasalazine, olsalazine or to other salicylates such as aspirin
  • Breathing problems such as asthma
  • Kidney problems
  • Liver problems
  • Pancreas problems
  • Pericarditis
  • Stomach or intestinal ulcers
  • Urinary problems
  • Pregnancy or lactation

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