The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Constipation
Less Common Side Effects
- Stomach discomfort or pain
- Bloating or gas
- Nausea
- Vomiting
- Diarrhea
- Burping
- Reduced appetite
- Fatty stool
- Rash
Cholestyramine serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Stomach or intestine problems: no bowel movement, severe stomach pain, black or bloody stools
Source: DailyMed
The following Cholestyramine side effects have also been reported
In some animal studies, cholestyramine was found to cause tumors. It is not known whether cholestyramine causes tumors in humans.
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Check with your doctor as soon as possible if any of the following side effects occur:
More common
Rare
Loss of weight (sudden)
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.



