Drug Interactions between atorvastatin and Questran
This report displays the potential drug interactions for the following 2 drugs:
- atorvastatin
- Questran (cholestyramine)
Interactions between your drugs
cholestyramine atorvastatin
Applies to: Questran (cholestyramine) and atorvastatin
Cholestyramine may interfere with the absorption of atorvastatin when they are taken at the same time or within a short time of each other. This may reduce the blood levels and effects of atorvastatin. To prevent or minimize the risk of interaction, atorvastatin should be taken at least 4 hours after cholestyramine. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Drug and food interactions
atorvastatin food
Applies to: atorvastatin
Grapefruit juice can increase the blood levels of atorvastatin. This can increase the risk of side effects such as liver damage and a rare but serious condition called rhabdomyolysis that involves the breakdown of skeletal muscle tissue. In some cases, rhabdomyolysis can cause kidney damage and even death. You should limit your consumption of grapefruit juice to no more than 1 quart per day during treatment with atorvastatin. Let your doctor know immediately if you have unexplained muscle pain, tenderness, or weakness during treatment, especially if these symptoms are accompanied by fever or dark colored urine. You should also seek immediate medical attention if you develop fever, chills, joint pain or swelling, unusual bleeding or bruising, skin rash, itching, loss of appetite, fatigue, nausea, vomiting, dark colored urine, and/or yellowing of the skin or eyes, as these may be signs and symptoms of liver damage. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
cholestyramine food
Applies to: Questran (cholestyramine)
Cholestyramine may interfere with the absorption of certain vitamins such as A, D, E and K. Therefore, it is recommended that you take multivitamin with minerals at least 1 hour before or 4 to 6 hours after cholestyramine to minimize the risk of interaction. Talk to your doctor or pharmacist if you have questions on how to take these or other medications you are prescribed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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