The medications that cannot be taken with cranberry are Warfarin, Atorvastatin, Cytochrome P450 2C9 and Nifedipine.
These medications interact with cranberry and so they should not be taken with cranberry or cranberry juice.
Do not eat cranberries or drink cranberry juice or eat anything with cranberry without medical advice if you are taking medications such as warfarin (Coumadin, Jantoven), a medication for high blood pressure such as nifedipine; or. a medication for high cholesterol such as atorvastatin.
Cranberry products that are taken with medications such as warfarin, an anticoagulant, can increase the risk of bleeding.
So therefore, people taking warfarin should avoid cranberry juice, cranberries and other cranberry products.
Cranberries can also interact with aspirin and other medications that are broken down by the liver.
Cranberry is healthy but when consumed in excess and it can lead to minor side effects such as nausea, abdominal pain and discomfort and diarrhea.
Cranberry juice or cranberry extracts can even have food and drug interactions, or even reduced plasma levels and effects of proton pump inhibitors and histamine type 2 H2 blockers.