Since you likely have a mechanical valve, you must take your oral anticoagulant (acenocoumarol) lifelong to prevent clots. The penicillin injections (benzathine penicillin G) protect against rheumatic fever and are typically continued until age 40; consult your cardiologist to see if you can safely stop them. Key Precautions:- Diet: Maintain a consistent daily intake of Vitamin K-rich foods (like green leafy vegetables) to avoid disrupting your medication levels.- Lifestyle: Avoid contact sports to prevent bleeding, and minimise alcohol.- Monitoring: Get regular PT/INR blood tests to monitor clotting times.- Safety: Always inform any healthcare provider or dentist about your blood thinner before undergoing procedures.