This study examines drug interactions in patients with prostate cancer who are taking multiple medications. The study focuses on three medications: enzalutamide (a cancer treatment medication), edoxaban (a blood-thinning medication), and morphine (a pain relief medication). The purpose is to understand how these medications affect each other when taken together, which is important for ensuring safe and effective treatment.

The research looks at how the body processes these medications when they are taken alone versus when they are taken in combination. The study will measure the amount of each medication in the blood over time. This will help determine if any adjustments to medication doses are needed when patients take these drugs together.

For patients who need pain medication, the study will also monitor how well pain is controlled. Throughout the study, healthcare providers will closely monitor participants for any side effects that may occur when these medications are used in combination. The findings will help improve the treatment of patients who need to take these medications at the same time.