Asacol HD (Mesalamine) – Generic




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Product Details


Asacol HD (mesalamine) is an anti-inflammatory drug. It is used to treat ulcerative colitis in adult patients. Asacol HD comes as an 800mg tablet with a delayed-release coating.


  • The recommended dose for adults with moderately active ulcerative colitis is 1600mg. Take two 800mg tablets three times per day.
  • Swallow the tablets whole with a glass of water.
  • Do not chew or crush Asacol HD tablets.


Mesalamine is the active ingredient in Asacol HD. There are multiple inactive ingredients.


  • Avoid using Asacol HD for more than six consecutive weeks.
  • Do not use Asacol HD if you are allergic to salicylates or any of the ingredients found in Asacol HD.
  • If you have liver or kidney disease, you should talk to your doctor about the risks of using Asacol HD.
  • Discuss all of your current medications with your physician before starting Asacol HD.
  • There might be risks associated with using Asacol HD if you are pregnant, intend to become pregnant, or are breastfeeding. Discuss the risks with your physician before starting Asacol HD.
  • Your colitis symptoms might worsen after starting Asacol HD. If you experience any of the following symptoms, contact your doctor:
    • Cramping
    • Abdominal Pain
    • Bloody Diarrhea
    • Fever

Side Effects

Asacol HD can cause the following side effects:

  • Worsening of ulcerative colitis
  • Abdominal Pain
  • Nausea
  • Headache
  • Nasopharyngitis

Other Considerations

  • You can buy Asacol 800mg as an Asacol generic.