_GG_
Well-Known Member
Protective licence? It's a patent, 20 year lifespan regardless of whether costs are recouped or not, though if it is seriously unlikely that they won't be obviously most will either not get to or be taken through the patenting process. Licensing is different.
I suspect more formulations will come along but they don't seem to be rushing that's for sure. Even this paper from 2015 suggests an expected influx http://onlinelibrary.wiley.com/doi/10.1111/jvim.13578/full
Id be interested to know what is stopping abler going through the proper channels and becoming a proper generic if they can prove it works as well.
Maybe because it already sells so well, the cost of doing so isn't worth it for them?