Thanks Dr. Rich, your advise is always very precise and effective.
Hello and welcome to the forum.
I am terribly sorry to hear about what your dad is going through.
Based on the information you provided to me, it sounds like he is suffering from the effects of severe aortic stenosis. And if this is the case, from a therapeutic standpoint, there is no "medication" that will reverse his condition. Medications can and should be use to stabilize him but he will ultimately require an intervention performed on his aortic valve (if this is the directon he would like to go). Typically, the intervention is surgical aortic valve replacement. However, in some instances, a less invasive approach referred to as TAVR can be used to replace the aortic valve while avoiding surgery (however only select hospitals perform this and he may/may not be an appropriate candidate).
If he is stable enough for transfer, I would highly encourage you to transfer him to a hospital highly skilled in complex valve surgeries and valve interventions if possible.
Wishing you only the best.
Dr. Rich