- Moderately active UC is characterized by tougher symptoms than mildly active UC. Asacol® HD (mesalamine) at 4.8 grams/day is proven to help treat these tougher flares of moderately active UC
- In clinical studies, Asacol® HD rapidly decreased the number of trips to the bathroom (i.e., the number of bowel movements) in the majority of patients by 3 weeks*
- Asacol® HD has a patented delivery system that gets medicine to the colon where it is needed most
* Individual results may vary.
Please scroll down to see Important Safety Information.
It's your time, your life...Talk to your healthcare provider about Asacol® HD (mesalamine) today!

Asacol® HD (mesalamine) delayed-release tablets are available only by prescription for the treatment of moderately active ulcerative colitis (UC).
You should not take Asacol® HD if you are allergic to any of the ingredients or to salicylates, such as aspirin. Tell your doctor if you have liver problems, kidney problems, or a history of kidney disease. It is recommended that all patients have their kidney function tested prior to starting and periodically while on Asacol® HD therapy. Worsening of UC symptoms can also occur. Serious side effects may occur. Asacol® HD has not been studied in pregnant women. Talk to your doctor if you are pregnant, planning to become pregnant, or are breastfeeding because Asacol® HD may not be right for you. If you have questions, please talk to your doctor.
Asacol® HD is generally well tolerated. In clinical studies, some patients reported headache, upset stomach, sore throat, stomach pain, and worsening of UC symptoms.
You should not substitute one Asacol® HD 800 mg tablet for two Asacol® (mesalamine) delayed-release 400 mg tablets unless directed by your doctor.
Please see Full Prescribing Information.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.
Asacol® is a registered trademark of Medeva Pharma Suisse AG, used under license by Warner Chilcott Company, LLC.