Thanks, Janet,

Yes, interesting - wouldn't it be wonderful if they found something that really worked!

It's amazing where they're finding these new painkillers. This stuff, Neurotropin, "an extract from the inflamed skin of vaccinia virus-inoculated rabbits, has been observed clinically to be effective for treating pain in patients with lumbago, SMON and other neuropathies". Rabbits!

I'm waiting for them to come up with a pill form of Prialt - cone snail venom!
http://news.bbc.co.uk/1/hi/health/5165124.stm
You can only get it in an intrathecal pump, at present, both in the US and the UK. I don't know why, but I have a feeling these cone snails may be the key to something big. (My feelings are usually way off, though)
All the best!