Mesalamine
Mesalamine 1.2GM
What is Mesalamine?
Mesalamine is a prescription anti-inflammatory medication used to treat ulcerative colitis (UC) and help maintain long-term remission. It works directly in the lining of the colon to reduce inflammation, helping relieve symptoms such as diarrhea, rectal bleeding, abdominal pain, and urgency.
Side Effects
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Chest pain, trouble breathing
Warnings
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart disease, skin problems (including atopic dermatitis, atopic eczema), or a history of stomach problems (including blockage, pyloric stenosis). Tell your doctor if you had an allergic reaction to sulfasalazine.
- This medicine may cause the following problems:Kidney problems, including kidney stonesMesalamine-induced acute intolerance syndromeHeart problems, including myocarditis, pericarditisLiver problemsSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), and acute generalized exanthematous pustulosis (AGEP)
- Tell your doctor if you have phenylketonuria (PKU). The Apriso® extended-release capsules contain aspartame, which may cause unwanted effects in patients with this condition.
- This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.
- Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
Prescription savings · · · ·
What is Mesalamine ?
Mesalamine is a prescription anti-inflammatory medication used to treat ulcerative colitis (UC) and help maintain long-term remission. It works directly in the lining of the colon to reduce inflammation, helping relieve symptoms such as diarrhea, rectal bleeding, abdominal pain, and urgency.
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Chest pain, trouble breathing
- Dark urine or pale stools, nausea, vomiting, loss of appetite, yellow skin or eyes
- Bloody diarrhea, severe cramping, stomach pain, headache
- Fast, slow, or pounding heartbeat
- Fever, chills, cough, stuffy or runny nose, sore throat, body aches
- Change in how much or how often you urinate, difficult or painful urination, lower back or side pain
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, heart disease, skin problems (including atopic dermatitis, atopic eczema), or a history of stomach problems (including blockage, pyloric stenosis). Tell your doctor if you had an allergic reaction to sulfasalazine.
- This medicine may cause the following problems:Kidney problems, including kidney stonesMesalamine-induced acute intolerance syndromeHeart problems, including myocarditis, pericarditisLiver problemsSerious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), and acute generalized exanthematous pustulosis (AGEP)
- Tell your doctor if you have phenylketonuria (PKU). The Apriso® extended-release capsules contain aspartame, which may cause unwanted effects in patients with this condition.
- This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.
- Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Mesalamine Coupons & Prices
Mesalamine 1.2GM
Weight-loss medication, prescribed online
Licensed U.S. providers · No insurance needed · Shipped to your door
Looking for a mesalamine coupon? Because mesalamine is available as a generic, it is often already lower in cost than the brand-name versions, but the cash price can vary a great deal from one pharmacy to the next. That is why it pays to compare before you fill. Rx.com checks prices across more than 60,000 pharmacies so you can find a lower price near you and use a free discount coupon at the counter. Enter your ZIP above to see today's price for mesalamine in your area.
What is mesalamine and how does it work?
Mesalamine, also known as mesalazine or 5-aminosalicylic acid (5-ASA), is an aminosalicylate that works locally in the gut as an anti-inflammatory. It is FDA-approved to treat mildly to moderately active ulcerative colitis and to help keep ulcerative colitis in remission. The right form depends on where the inflammation is: oral delayed-release and extended-release tablets and capsules (such as Lialda, Apriso, Pentasa, Delzicol, and Asacol HD), rectal suppositories for ulcerative proctitis, and rectal enemas for distal or left-sided ulcerative colitis and proctosigmoiditis.
Rather than working throughout the whole body, mesalamine acts directly on the lining of the colon to calm inflammation. Your provider chooses the formulation and dose based on your diagnosis and where the disease is active.
Mesalamine cost without insurance and how to save
Mesalamine is available as a generic, which usually makes it more affordable than the brand-name products. Even so, the cash price without insurance can differ widely between pharmacies for the very same medication, so comparing is worth the few seconds it takes. Rx.com compares prices at more than 60,000 U.S. pharmacies and gives you a free coupon you can show at the pharmacy counter, whether or not you have insurance. Enter your ZIP above to see today's price near you.
Some brand-name versions of mesalamine also have a manufacturer savings card. Eligibility and terms vary and can change, so check the official manufacturer's website for that brand for current details. For the generic, the discount coupon on this page is often the simplest way to keep the cash price down.
Brands and related medications
Mesalamine is sold under several brand names, each with its own formulation and delivery. Oral options include Lialda, Apriso, Pentasa, Delzicol, and Asacol HD, while Canasa is a suppository and Rowasa/sfRowasa is an enema. They differ mainly in how and where in the gut the medicine is released.
Other aminosalicylates used for ulcerative colitis include sulfasalazine and balsalazide. Which one is right for you depends on your diagnosis, how you respond, and your provider's judgment. You can compare prices for any of these on Rx.com.
Safety and side effects
Mesalamine has no boxed warning, but there are important safety points to know. In some people it can cause an acute intolerance syndrome, with cramping, abdominal pain, bloody diarrhea, fever, headache, or rash. Because these symptoms can look like a colitis flare, tell your provider promptly, as the medication may need to be stopped. Kidney problems, including interstitial nephritis and, rarely, kidney failure, have been reported, so providers typically check kidney function before and periodically during treatment.
Other cautions include hypersensitivity reactions (people sensitive to sulfasalazine may react to mesalamine too), liver problems in those with pre-existing liver disease, rare but serious skin reactions, and rare blood disorders. Extra care is advised in people with pyloric stenosis and when taking other drugs that affect the kidneys, such as NSAIDs or azathioprine/6-MP. This information is not medical advice; talk with your doctor or pharmacist about your health history and any other medicines you take.
This Mesalamine information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Mesalamine on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.