Efavirenz and Atorvastatin calcium (Lipitor 10 mg): interaction and safety
This source-based reference is not a personal treatment recommendation. The relevance and management of an interaction depend on the exact products, route, dose and clinical situation.
Interaction mechanism
Efavirenz reduces exposure to the named statin.
Clinical significance and safety
Efavirenz can reduce atorvastatin, pravastatin or simvastatin exposure. The prescriber should review lipid control when efavirenz starts or stops; do not change the statin dose independently.
Using this information
This is a source-based reference record, not a recommendation to combine, stop or change medicines. A missing interaction record does not establish safe use. A qualified healthcare professional should consider the exact products, doses, other medicines and individual health circumstances.