Class Name(s):

• 56:36 Anti-inflammatory Agents

Pronunciation:

• (me sal' a meen)

Brand Name(s):

• Apriso^®
• Asacol^®Â¶
• Asacol HD^®
• Delzicol^®
• Lialda^®
• Pentasa^®; also available generically

Other Name(s):

• 5-ASA
• mesalazine

WHY is this medicine prescribed?

Mesalamine is used to treat ulcerative colitis (a condition which causes swelling and sores in the lining of the colon [large intestine] and rectum) and also to maintain improvement of ulcerative colitis symptoms. Mesalamine is in a class of medications called anti-inflammatory agents. It works by stopping the body from producing a certain substance that may cause inflammation.

HOW should this medicine be used?

Mesalamine comes as a delayed-release (releases the medication in the intestine where its effects are needed) tablet, a delayed-release capsule, and an extended-release (long acting; releases the medication throughout the digestive system) capsule to take by mouth. The delayed-release tablets (Lialda) are usually taken with food once a day by adults and children. The delayed-release tablets (Asacol HD) are usually taken on an empty stomach three times a day (1 hour before or 2 hours after meals) by adults. The extended-release capsules (Apriso) are usually taken with or without food once a day in the morning by adults. The extended-release capsules (Pentasa) are usually taken with or without food four times a day by adults. The extended-release capsules (Delzicol) are usually taken with or without food 2 to 4 times a day by adults and twice a day by children, preferably in the morning and afternoon.

Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take mesalamine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Swallow the delayed-release tablets, delayed-release capsules, and extended-release capsules whole; do not split, chew, or crush them. Be careful not to break the protective coating on the delayed-release tablets. If you cannot swallow the extended-release capsules (Pentasa), you may open the capsules and sprinkle the entire contents on a tablespoon of applesauce or yogurt. Swallow (without chewing) this mixture immediately after preparation. If you cannot swallow the delayed-release capsules (Delzicol), you may carefully open the capsules and swallow (without chewing) the entire contents of each capsule and then drink a glass of water to make sure you have swallowed all of the medicine.

Drink plenty of fluids while taking mesalamine.

Continue to take mesalamine until you finish your prescription, even if you feel better at the beginning of your treatment. Do not stop taking mesalamine without talking to your doctor.

Are there OTHER USES for this medication?

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

What SPECIAL PRECAUTIONS should I follow?

Before taking mesalamine,

• tell your doctor and pharmacist if you are allergic to mesalamine, balsalazide (Colazal); olsalazine (Dipentum); salicylate pain relievers such as aspirin, choline magnesium trisalicylate, diflunisal, magnesium salicylate (Doan's, others); sulfasalazine (Azulfidine), any other medications, or any of the ingredients found in mesalamine delayed-release tablets, delayed-release capsules, and extended-release capsules. Ask your pharmacist for a list of the ingredients.
• tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Your doctor may need to change the doses of your medications or monitor you more carefully for side effects.
• The following nonprescription or herbal products may interact with mesalamine: antacids such as aluminum hydroxide and magnesium hydroxide (Maalox), calcium carbonate (Tums), or calcium carbonate and magnesium (Rolaids); aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin) and naproxen (Aleve, Naprosyn), or iron supplements. Be sure to let your doctor and pharmacist know that you are taking these medications before you start taking mesalamine. Do not start any of these medications while taking mesalamine without discussing with your healthcare provider.
• tell your doctor if you have or have ever had myocarditis (swelling of the heart muscle), pericarditis (swelling of the sac around the heart), a skin condition such as eczema (atopic dermatitis; a skin disease that causes the skin to be dry and itchy and to sometimes develop red, scaly rashes), kidney stones, or liver or kidney disease. If you will be taking the delayed-release tablets, tell your doctor if you have or have ever had a gastrointestinal obstruction (a blockage in your stomach or intestine).
• tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking mesalamine, call your doctor.
• plan to avoid unnecessary or prolonged exposure to the sunlight and to wear protective clothing, sunglasses, and sunscreen. Mesalamine may make your skin sensitive to sunlight.
• you should know that mesalamine should not be taken by people who have received the varicella virus (chicken pox) vaccine in the past six weeks because of the risk of Reye's syndrome (a serious condition in which fat builds up on the brain, liver, and other body organs).
• you should know that mesalamine may cause a serious reaction. Many of the symptoms of this reaction are similar to the symptoms of ulcerative colitis, so it may be difficult to tell if you are experiencing a reaction to the medication or a flare (episode of symptoms) of your disease. Call your doctor if you experience some or all of the following symptoms: stomach pain or cramping, bloody diarrhea, fever, headache, weakness, or rash.
• if you have phenylketonuria (PKU, an inherited condition in which a special diet must be followed to prevent damage to your brain that can cause severe intellectual disability), you should know that the extended release capsules (Apriso) contain aspartame that forms phenylalanine.

What SPECIAL DIETARY instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What should I do IF I FORGET to take a dose?

Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

What SIDE EFFECTS can this medicine cause?

Mesalamine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

• muscle or joint pain
• back pain
• nausea
• vomiting
• heartburn
• burping
• constipation
• gas
• itching
• dizziness
• runny nose, sneezing, sore throat, and congestion
• hair loss
• decreased appetite

Some side effects can be serious. If you experience any of the following symptoms or those listed in the SPECIAL PRECAUTIONS section, call your doctor immediately:

• rash, hives, itching or peeling or blistering skin
• mouth sores or blisters
• fever or flu-like symptoms
• swelling of the eyes, face, lips, tongue, mouth, or throat
• swollen glands
• difficulty breathing or swallowing
• new or worsening cough
• chest pain
• shortness of breath
• black or tarry stools
• bloody vomit
• vomiting material that looks like coffee grounds
• swelling of any part of the body
• side or back pain
• difficult or painful urination, or pink or red colored urine, or blood in urine
• extreme tiredness
• yellowing of the skin or eyes
• pain in the right upper part of the stomach
• pale stools

Mesalamine may cause your urine to become discolored, reddish-brown when it comes in contact with any surface or water (e.g., in the toilet). Call your doctor if your urine is discolored.

Mesalamine may cause other side effects. Call your doctor if you have any unusual problems while you are taking this medication.

What should I do in case of OVERDOSE?

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at http://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

Symptoms of overdose may include the following:

• nausea, vomiting and abdominal pain
• fast or shallow breathing
• ringing in the ears
• headache
• dizziness
• confusion
• seizures

What should I know about STORAGE and DISPOSAL of this medication?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat, light, and moisture (not in the bathroom).

Keep all medication out of sight and reach of children as many containers are not child-resistant. Always lock safety caps. Place the medication in a safe location - one that is up and away and out of their sight and reach. http://www.upandaway.org

Dispose of unneeded medications in a way so that pets, children, and other people cannot take them. Do not flush this medication down the toilet. Use a medicine take-back program. Talk to your pharmacist about take-back programs in your community. Visit the FDA's Safe Disposal of Medicines website http://goo.gl/c4Rm4p for more information.

What OTHER INFORMATION should I know?

If you are taking mesalamine delayed-release tablets (Delzicol), you may notice the tablet shell or part of the tablet shell in your stool. Tell your doctor if this happens frequently.

Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests before and during your treatment.

Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking mesalamine.

Do not let anyone else take your medicine. Ask your pharmacist any questions you have about refilling your prescription.

Keep a written list of all of the prescription and nonprescription (over-the-counter) medicines, vitamins, minerals, and dietary supplements you are taking. Bring this list with you each time you visit a doctor or if you are admitted to the hospital. You should carry the list with you in case of emergencies.

^¶ This branded product is no longer on the market. Generic alternatives may be available.

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.

The American Society of Health-System Pharmacists, Inc. represents that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. makes no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. does not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS^® Patient Medication Information™ Copyright, 2025. The American Society of Health-System Pharmacists^®, 4500 East-West Highway, Suite 900, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.

Selected Revisions: February 15, 2024.