Via TPM:
Over the last few years, drug-makers have embraced a startlingly simple tactic for fending off competition from generic brands: paying them off. In a nutshell, the company that holds the patent on a profitable drug strikes a deal with the maker of the cheaper generic brand: you hold off on marketing your generic for several years, and in return, we’ll give you a share of our profits on the drug.
(…)
So common have these deals become lately that they’ve been given a name: pay-for-delay. The approach — a textbook anti-competitive tactic — is worth billions to drug-makers, because it essentially allows them to buy more protection than their patent confers.
It’s worth a read on how this scam is totally legal and totally ripping you off.