Was flicking through a paper link that someone posted about a miracle cure toilet seat and there was quite a bit of talk about this Gonyautoxin in that.
Mainly...
"Gonyautoxin is the newest pharmacological therapy to emerge and the initial results are optimistic with 100% healing rate within 2 wk and no incontinence reported. The mechanism of action of Gonyautoxin is the dose-dependent reversible binding of the toxin to voltage-gated sodium channels on excitable cells, thereby producing a neuronal transmission blockage. This mechanism is similar to that for Botulinum toxin in that the effects are reversible and non-permanent and so this does not solve the fundamental problem of recurrence noted in Botulinum toxin injection. However, Gonyautoxin may act in additional ways as yet undiscovered that aid fissure healing. Long term follow-up is therefore needed to determine the recurrence rate and large scale randomized placebo-controlled trials are needed to confirm the time to healing and healing rates"
As I'm aware, Clinical testing is a long and thorough routine. Years and years of testing. 10-15 years or more.
Link is here
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2999245/?report=classicAnd has some really useful information generally about AF and the treatments.