Hi Boekewiesje
Yes J and J are making progress with their research and introduction of nasal sprays, but unless SUD has had a change of direction their focus has been on sub lingual oral sprays. However, not being at all knowledgeable about the the difference I think the theory is similar. I understand that the point of difference has something do do with the surface area and speed of transmission into the bloodstream via the muscosal membrane. That doesn't mean to say that there is no interest in the SUD research and development of their transmission technology which could be a game changer.....but what would a mere shareholder sitting in the cheap seats know? I can only speculate.
kippax