But if a company spends decades and billions of dollars fighting for the approval of a drug they do not hold the patent on, they are by no means guaranteed making even a single penny of that investment back, even in the best case scenario where it succeeds in getting through the FDA.s
(Trivially searchable, for example here: http://adage.com/article/special-report-pg-at-175/procter-ga...)
If the same thing happened to the tech industry, it would work like this... you create an awesome new gadget and a competitor creates a copy. The gov't certifies this copy as "exactly the same". When you go to purchase the fancy gadget at the store, the clerk automatically gives you the cheaper copy without even asking.
Again, not something marketing can help a whole lot with.
Most of those laws are on the books because gov't funded health insurance (Medicare, Medicaid) don't like to pay brand name prices when generics are available.
It seems like it might be useful (assuming it isn't already) to separate the rights concerning drug discovery and those demonstrating efficacy/safety to allow costs to be recovered.
Then again, it needs to be weighed against the inevitable rent-seeking that pharma has a name for.
[1] but don't have any evidence handy to back it up, so ICBW.
* US pharma is developing a me-too / copycat drug that has very similar molecular structure
* US pharma has tried and it failed before public announcement (oh there are so many of them)
* US pharma negotiated contract and found that the Russians are non-negotiable :)