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Olsalazine is used to treat a certain type of bowel disease called ulcerative colitis. It does not cure ulcerative colitis, but it may decrease symptoms such as stomach pain, diarrhea, and rectal bleeding caused by irritation/swelling of the colon/rectum. After an attack is treated, olsalazine is used to increase the amount of time between attacks.
Olsalazine is a salicylate anti-inflammatory drug. It is believed to work by blocking the production of certain natural substances (e.g., prostaglandins) that may cause pain and swelling.
Take this medication by mouth, usually twice a day about 12 hours apart or as directed by your doctor. Take with food or after meals to prevent stomach upset. Dosage is based on your medical condition and response to treatment.
Headache, nausea, vomiting, or loss of appetite may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Tell your doctor immediately if diarrhea occurs. Your doctor may need to lower your dose or prescribe another medication to treat the diarrhea. Tell your doctor immediately if any of these rare but very serious side effects occur: severe stomach/abdominal pain, pale stools, unusual tiredness, persistent nausea/vomiting, change in the amount of urine, dark urine, yellowing eyes/skin, signs of infection (e.g., fever, persistent sore throat), easy bruising/bleeding. A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.