It doesn't hurt to ask, iPappy .I don't know if vets are allowed to answer such a question or not, but I have asked it. With vets I know, the response is usually somewhere along the lines of yes, or a look that I know means probably not. It's a rough question to ask, and to be asked, but having their opinion is vital.
Another question I would ask about is the strength of these drugs, and if any cases that they're aware of that were close to Willy's were helped by them. I would also ask how quick acting they are, and if you should see long lasting improvement with one treatment, two, three, etc.