I'm way too old to worry about appearing ignorant, especially...

I'm way too old to worry about appearing ignorant, especially when I am, so while we are answering questions above my head, can I change the subject slightly to the Oxycodone market which, along with insulin, was the main reason I invested in this company. All the other cosmeceuticals etc I treat as a sideshow with possible upside. These two to me are the real company makers.

But every time I mention a morphine patch, I am told, including by nurses that one already exists. I then feel rather foolish in not being able to explain why OURS is better.

I know this has been covered in the past, so I apologise for dragging over old ground, but can someone please explain again to a bear of very little brain why this is so? Preferably in words of less than five syllables.