Animated explainer introducing Imbruvica, an oral treatment for certain blood cancers. The film shows how abnormal B cells multiply due to overactive BTK signalling, and how Imbruvica blocks this process to help control the disease. The animation also explains the importance of daily adherence, how to take the medicine correctly, what to do if a dose is missed, and potential side effects. The tone is clear and supportive, giving patients practical guidance on managing treatment and staying well.