Are there different sorts of botulinum toxin?
There are now three brands of botulinum toxin type A available – Dysport, Botox and Xeomin. The last is not yet widely available but should be licensed in the UK early in 2008. There is also botulinum toxin type B, which is marketed as Neurobloc. There is very little practical difference between these different types of toxin and one does not really have any advantage over another.