Imfinzi stays in your system for about 3 months after you take it. (An infusion is treatment you receive through a needle or tube.)
During this time, Imfinzi is slowly released as it keeps working in your body. Because of the length of time the drug stays in your system, it’s important to tell all your healthcare professionals, including your pharmacist, about your Imfinzi treatment. This will help avoid any drug interactions with other medications you might be prescribed.
Ask your doctor or pharmacist how long Imfinzi works.