Hi Pauline,
Sorry I didn't respond quicker to your request for info. I've been laid up with a really bad cold all week and haven't been checking the forum posts. I am told by my consultant that there are still only around 80 people in the UK on Byetta, and 55 of those are his patients, so his group seems to be regarded as the cohort group within the medical profession. He complains that he spends more time giving presentations on it to doctors and consultants than he spends with his patients, but it seems to be getting the message home as other consultants want to give it a try.
I have been on Byetta for almost 6 months now and no problems. Nausea is supposed to be a side-effect for the first week or two, but I didn't experience that at all. The only other major side effect is that it can cause pancreatitis, but it only seems to occur when someone has been on it for a long time, and even then is extremely rare. It certainly is fantastic for weight loss - I have lost about a stone since I started on it.
If you have any questions about it just let me know and I will do my best to answer. If you have any technical questions, I have found the Eli Lily UK help desk to be very friendly, knowledgable and helpful.