Drug Information

Mesalamine is used to treat mildly to moderately active ulcerative colitis and to prevent recurrence.

Common brand names:

Asacol, Canasa, Pentasa, Rowasa

Summary of Interactions with Vitamins, Herbs, & Foods

Types of interactions: Beneficial Adverse Check

Replenish Depleted Nutrients

  • none

Reduce Side Effects

  • none

Support Medicine

  • Psyllium

    Taking 20 grams of psyllium seeds together with mesalamine for 12 months was more effective at maintaining remission of ulcerative colitis than taking either the drug or herb alone.1 People taking mesalamine should consult with their healthcare practitioner to determine whether they should add psyllium seeds to their treat regimen.

Reduces Effectiveness

  • none

Potential Negative Interaction

  • none

Explanation Required 

  • none

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers’ package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.


1. Fernandez-Banares F, Hinojosa J, Sanchez-Lombrana JL, et al. Randomized clinical trial of Plantago ovata seeds (dietary fiber) as compared with mesalamine in maintaining remission in ulcerative colitis. Am J Gastroenterol 1999;94:427-33.