Get emergency medical help if you have any of these signs of an allergic reaction to Generic Asacol: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking Generic Asacol and call your doctor at once if you have a serious side effect such as:
- severe stomach pain, cramping, fever, headache, and bloody diarrhea.
Less serious Generic Asacol side effects may include:
- mild nausea, vomiting, stomach cramps, diarrhea, gas;
- fever, sore throat, or other flu symptoms;
- headache or dizziness;
- tired feeling; or
- skin rash.
This is not a complete list of side effects and others may occur.