What Is Lialda? Uses, Dosage, and What You Need to Know in 2026

Lialda is a prescription medication used to treat ulcerative colitis (UC), a chronic inflammatory bowel disease that affects the lining of the large intestine. It's one of the most commonly prescribed mesalamine products in the United States, and is especially valued because of its convenient once-daily dosing. Here's what every patient should know about Lialda in 2026.

What Is Lialda?

Lialda is the brand name for mesalamine (also called 5-aminosalicylic acid, or 5-ASA) in a 1.2 g delayed-release tablet formulation. Mesalamine is an aminosalicylate — a class of anti-inflammatory drugs that work locally in the colon to reduce inflammation associated with ulcerative colitis.

Lialda was first approved by the FDA on January 16, 2007, making it the first once-daily oral mesalamine approved in the United States. It was developed by Cosmo Pharmaceuticals using MMX (Multi-Matrix System) technology, which allows the medication to be released throughout the colon in a single daily dose.

What Is Lialda Used For?

Lialda has two FDA-approved indications:

• Induction of remission in adults and pediatric patients (5 years and older, weighing at least 24 kg) with active, mild to moderate ulcerative colitis
• Maintenance of remission of ulcerative colitis in adults

Induction means treating active UC symptoms (flare) until they go away. Maintenance means keeping UC symptoms in remission once they've been controlled. Lialda can be used for both phases, making it a versatile treatment option.

Off-label uses include Crohn's disease, though evidence for efficacy in Crohn's is limited and it is generally not recommended for this indication in current guidelines.

What Does Lialda Treat, Exactly?

Ulcerative colitis is an inflammatory bowel disease that causes inflammation and ulcers in the lining of the large intestine (colon) and rectum. Symptoms include:

• Frequent and urgent need to have bowel movements
• Diarrhea, often with blood or mucus
• Abdominal pain and cramping
• Rectal pain and urgency
• Fatigue and weight loss in more severe cases

Lialda is considered first-line therapy for mild to moderate UC because it reduces inflammation directly in the colon, controlling these symptoms and helping maintain remission.

Lialda Dosage: How Much Do You Take?

Lialda comes in 1.2 g delayed-release tablets. Each tablet is a red-brown, ellipsoidal shape. Here are the FDA-approved dosing regimens:

• Induction in adults: 2.4 g/day (2 tablets) or 4.8 g/day (4 tablets) taken once daily with a meal, for up to 8 weeks
• Maintenance in adults: 2.4 g/day (2 tablets) taken once daily with a meal
• Pediatric dosing (5+ years, ≥24 kg): 60–80 mg/kg/day once daily (maximum 4.8 g/day), rounded to nearest tablet size, taken with a meal

How to Take Lialda Correctly

Follow these instructions to get the most benefit from Lialda:

• Always take Lialda WITH food. Taking it with a meal increases the amount of drug that reaches the colon and reduces stomach upset. Studies show a high-fat meal can increase systemic exposure significantly — take it with a standard meal, not just a snack.
• Swallow tablets whole. Do not crush, cut, or chew — this destroys the delayed-release coating that is essential for delivering mesalamine to the colon.
• Take at the same time each day. Consistent daily dosing helps maintain steady drug levels in the colon. Pick a time that coincides with a meal you eat reliably.
• Don't stop without talking to your doctor. Even if you feel well, stopping mesalamine can lead to a UC flare. Continue taking it as prescribed.

Is Lialda Available as a Generic?

Yes. Generic mesalamine 1.2 g delayed-release tablets are FDA-approved and widely available from manufacturers including Zydus Pharmaceuticals and Camber Pharmaceuticals. The generic is bioequivalent to brand Lialda — same active ingredient, same dose, same formulation. The generic is dramatically cheaper, starting at around $45/month with a GoodRx coupon.

The Bottom Line

Lialda is a once-daily mesalamine tablet that is first-line therapy for mild to moderate ulcerative colitis, used for both inducing and maintaining remission. Always take it with food and swallow tablets whole. Generic mesalamine 1.2 g DR is an identical, lower-cost option. Want to understand how it works in your body? Read our detailed explanation: How Does Lialda Work? Mechanism of Action Explained in Plain English