The common side effects of Asacol are stomach discomfort, gas, diarrhea, constipation and weakness, states Drugs.com. Joint pain, headache, dizziness, flu symptoms and runny nose may also occur. More serious side effects are bloody diarrhea, severe cramping, bloody cough, vomiting that looks like coffee grounds and rapid weight gain.
Patients who experience serious side effects should contact their physicians and stop using Asacol, states Drugs.com. Other serious side effects to watch for are little urination, jaundice, chest pain, shortness of breath and clay-colored stools. Patients who experience symptoms of an allergic reaction should seek immediate medical attention. These include difficulty breathing, hives, and throat, lip or tongue swelling.
Patients should notify their doctors of all allergies before taking Asacol, explains WebMD. Inactive or active ingredients in this medication can trigger allergic reactions. Patients should also tell doctors their medical histories, especially any history of liver disease, kidney disease or stomach blockage.
Patients should report all other medications they are on to doctors, states RxList. These include prescription drugs, over-the-counter drugs, herbal products and vitamins. Medications that can interact with Asacol include azathioprine, mercaptopurine, pentamidine, tacrolimus and amphotericin B. Others are certain antibiotics and antiviral medications, certain cancer medications and nonsteroidal anti-inflammatory drugs.