Is my dad dying of heart failure?

My dad is 57 years old a former 15 year meth user and began taking adderall (adderrall) reguarly in 2007. In 2005 he was diagnosed with congestive heart failure, a stint was put in and heart was pumping at 65%. November 2010 he went to the emergency room as he said he couldn't breathe, he was told he had pneumonia and heart was pumping at 25%. He was admitted to the hospital on 1/12 as he said he had 40lbs of excess water. He has not told the doctors he takes adderall (adderrall) (im sure he abuses with increasing the does) I can't get any information out of him, I'm not sure how serious it is and if hes in denial? IS THIS SERIOUS? HOW SERIOUS? I just want some ANSWERS

[jrbon]

Obviously, taking a stimulant drug (adderall (adderrall)) will have reduced the effects of the medication that he was suppose to take for the HF and this can be the cause of his decreased pumping function.

Once said that, there is no reason, unless that there are more damages to kidneys or hearth, for him to die in the short term. Obviously he has to get out of the pneumonia, of the excess of water, stick to his HF medication and stop the stimulants.

Jesus