<<<You have to be kidding, right? Copaxone has to be among the most sophisticated drugs I know of, both in terms of its composition and its mode of action.>>>
But Teva did not develop it, and Teva has not developed any significant drugs in over 15 years since copaxone obtained U.S. approval:
That is simply not Teva's business, to develop complex, sophisticated drugs. That is not a slight against Teva, it is just not their business and their core competencies.
Teva admits that themselves from their won web-site: Proven Success - We're building on our successes in developing proprietary therapies such as the blockbuster COPAXONE® and AZILECT® - the rights to both of which were acquired from renowned institutions.
Now that Teva has tons of cash to burn, they are trying to morph into a more standard R&D sort of company, mostly by acquiring such targets I would imagine. But since 1996, I am not aware of any branded Teva innovator drug?