Rectal mesalamine is used to treat ulcerative colitis (a condition which causes swelling and sores in the lining of the colon [large intestine] and rectum), proctitis (swelling in the rectum), and proctosigmoiditis (swelling in the rectum and sigmoid colon [last section of the colon]). Rectal 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.
Rectal mesalamine comes as a suppository and an enema to use in the rectum. The suppository and the enema are usually used once a day at bedtime. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Use rectal mesalamine exactly as directed. Do not use it more or less of it or use it more often than prescribed by your doctor.
You should begin to feel better during the first few days or weeks of your treatment with rectal mesalamine. Continue to use rectal mesalamine until you finish your prescription, even if you feel better at the beginning of your treatment. Do not stop using rectal mesalamine without talking to your doctor.
Mesalamine suppositories and enemas may stain clothing and other fabrics, flooring, and painted, marble, granite, enamel, vinyl, and other surfaces. Take precautions to prevent staining when you use these medications.
If using a mesalamine enema, follow these steps:
If using a mesalamine suppository, follow these steps:
If you will be using mesalamine enemas or suppositories, ask your pharmacist or doctor for a copy of the manufacturer's information for the patient that comes with the medication.
This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.
Before using mesalamine,
Unless your doctor tells you otherwise, continue your normal diet.
Use 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 use a double dose to make up for a missed one.
Rectal mesalamine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
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:
Mesalamine may cause other side effects. Call your doctor if you have any unusual problems while you are using 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 light, excess heat and moisture (not in the bathroom). You may store mesalamine suppositories in the refrigerator, but do not freeze them. Once you open the foil package of mesalamine enemas use all the bottles promptly, as directed by your doctor.
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( Web Site) for more information if you do not have access to a take-back program.
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. Web Site
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at Web Site. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Keep all appointments with your doctor and the laboratory.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are using mesalamine.
Do not let anyone else use your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
AHFS® Consumer Medication Information. © Copyright, The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.
Selected Revisions: February 15, 2017.