Drug
Mesalamine
Pronounced
"mess-AL-uh-meen"
Side Effects
Rectal pain, pain when inserting the suppository, headache, gas, stomach pain, and diarrhea may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Rarely, this medication may make symptoms of your condition worse rather than better (acute intolerance syndrome or sensitivity reaction). Tell your doctor right away if you experience any of these unlikely but serious side effects: worsening stomach pain/cramping, worsening bloody diarrhea, severe/prolonged headache.
Tell your doctor right away if you have any serious side effects, including: chest pain, shortness of breath, severe stomach/abdominal pain (especially if spreading to the back), yellowing eyes/skin, dark urine, signs of kidney problems (such as change in the amount of urine, blood in the urine).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: fever, swollen lymph nodes, rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Precautions
Before using mesalamine, tell your doctor or pharmacist if you are allergic to it; or to other aminosalicylates (such as balsalazide, olsalazine); or to salicylates (such as aspirin, salsalate); or to sulfasalazine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney problems, liver disease, pancreas problems (pancreatitis), inflammation of the sac around the heart (pericarditis).
This medication may make you more sensitive to the sun, especially if you have skin problems (such as atopic dermatitis, eczema). Limit your time in the sun. Avoid tanning booths and sunlamps. Use sunscreen and wear protective clothing when outdoors. Tell your doctor right away if you get sunburned or have skin blisters/redness.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
This medication is similar to aspirin. Children and teenagers younger than 18 years should not take aspirin or aspirin-related medications (such as salicylates) if they have chickenpox, flu, or any undiagnosed illness, or if they have just been given a live virus vaccine (such as varicella vaccine), without first consulting a doctor about Reye's syndrome, a rare but serious illness.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.