Medicare and Anti-Aging Drugs

Atlanta Journal Constitution reports two new drugs which have tremendous health benefits in terms of extending human life. The article has a caption in which it asks, "Is 90 the new 50?" I wonder what the effect of these drugs are on government budgets, like ours, that provide prescription drug coverage to seniors? If the drugs are patented, at least for the first dozen years or so, they'll be priced at monopoly pricing. But if they're effective, then would Medicare and Part D cover them? And if so, what would the costs be? I also wonder how these kinds of drugs will affect household saving behavior, as well as household health investments. If you live to 60 on average, then your savings can be lower because you aren't out of the labor market for very long. But when you live well on average approaching 100, then you'll need a giant nestegg to retire. Probably, drugs like these will inevitably force lawmakers to increase the age of retirement from 65 to some higher number - especially since in a skill-oriented economy like ours, many workers are still very sharp and productive well into their senior years. Still, these are such strange times. The world is changing so rapidly, and the changes are uneven and unanticipated in many ways.