A blood pressure reading of 260 is dangerously high and constitutes a life-threatening medical emergency. Please seek immediate emergency medical care right away. Do not attempt to self-medicate. For stable heart failure and ischemic heart disease, standard medications include Beta-blockers (e.g., Metoprolol), ACE inhibitors or ARNIs, SGLT2 inhibitors, and aldosterone antagonists, alongside aspirin and statins. However, your current blood pressure requires immediate emergency hospital treatment with monitored intravenous medications to prevent a stroke or heart attack. Please go to the nearest emergency room immediately.