Find & Manage Your Patient Assistance Programs
Estimated patient savings $600,000,000.00
Olsalazine sodium oral

Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.





This medication works in the intestine to relieve inflammation. It is used in the treatment of ulcerative colitis.

How To Use

Take this with food or after meals to prevent stomach upset. The usual dose for adults is two 250mg capsules twice daily taken at evenly spaced intervals. Or take as directed by your doctor. If you are uncertain about your dosing schedule, ask your doctor or pharmacist to explain it to you.

Side Effects

This medication may cause stomach upset, gas, bloating, nausea, loss of appetite, headache, drowsiness, dizziness or trouble sleeping during the first few days as your body adjusts to the medication. If these symptoms persist or worsen, inform your doctor promptly. Notify your doctor promptly if you develop: diarrhea, stomach pain, rash, itching, yellowing eyes or skin, dark urine, fever, fatigue. In the unlikely event you have an allergic reaction to this drug, seek immediate medical attention. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, especially of: kidney problems, asthma, nasal polyps, any allergies (including allergies to sulfasalazine or aspirin-like drugs). This medicine may cause stomach bleeding. Daily use of alcohol, especially when combined with this medicine, may increase your risk for stomach bleeding. Check with your doctor or pharmacist for more information. This drug should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. Olsalazine is excreted into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all over-the-counter and prescription medication you may use, especially: warfarin. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately.


Do not share this medication with others.

Missed Dose

If you miss a dose, take it as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.


Store at room temperature between 59 and 86 degrees F (between 15 and 30 degrees C) away from moisture and sunlight. Do not store in the bathroom.