Drug patents are legion, and they are prone to flock together. In ancient times, a patent would describe A molecule that cured . . . the dancing plague (?) and that would be the end of that. But one bright fellow after another came up with new ways to extend the life of a drag patent, from formulation, to method of treatment, to the new hip thing -- interaction patents.
The gist of these patent claims is pretty basic
- You've got a drug that you normally give in amount A.
- You've got atypical patient with whose taking drug B, or has condition C (these pretty much always have something to do with the liver, don't ask me why, I was …