My father is 69 years old had a stroke 12 years ago, had pacemaker installed about 8 years ago, he has had a couple heart attacks. he also has congestive heart failure and is always in atrial fib. His heart is now working at 15 percent. i was wondering if there is any medication or what can be done to have his heart pump stronger so he doesnt continue to build fluid in his body. He currently takes lasix, aldactone and coumadin. Also, I researched Lanoxin and that sounds like it may be a drug suitable for him. Any advice you may have would be great thanks.