I have an autistic son who previously received injections of secretin and I was a bit sceptical about trying the spray but did when I couldn't get hold of the injections.
To my surprise and delight I have to say that the spray is more effective and Tom is doing much better than he did on the injections which he hated. He now asks for the spray and does it himself. He seems to know that it helps him and the improvements in his speech and behaviour are better and quicker than the were when he was having the injections. I didn't tell anyone he was using the spray but people started noting the different in him very quickly and his teachers and grandparents said he different he was. He seems much happier and is finally starting to speak again after 4 years, just odd words but he is learning more all the time.