Efavirenz and Rifabutin: 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 induction lowers rifabutin exposure.
Clinical significance and safety
Efavirenz reduces rifabutin exposure. A prescriber must arrange a regimen-specific plan and monitoring; rifabutin and rifampin are not interchangeable interaction situations.
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.