What happens if someone has congestive heart failure and takes medicine how long do they have to live?

It varies: Death in the first year can vary from 10% to 25% depending on the cause of the heart failure ,the severity of the heart dysfunction,the age of the patient and the presence of co morbidities such as kidney failure, diabetes,etc. The natural history of heart failure which is progressive can be altered by medications and intervention such as bi ventricular pacing or resynchronization