As you probably already know, it seems to have dropped out of sight.
The newest reference in the U.S. National Library of Medicine (PubMed)
dates back to 1995. Even searching Google gave no recent references.
Searching the Aventis site produced nothing and it is not listed under
the pharmaceuticals they produce.
Perhaps it turned out to be too expensive, with too many side effects,
and not more effective than other treatments and so was dropped.
"William Bains" <william at bains.u-net.com> wrote in message
news:3ae9cd58.16254422 at news.u-net.com...
> A few years ago there was a drug called Zifrosilone being developed by
> Hoechst Marrion Roussel (which is now Aventis) for Alzheimer's
> Disease. Does anyone know what happened to it? It is referred to as
> 'likely to be launched in the UK in 1999' ina review in 1990, but
> never was.
>> Any clues welcome. Thanks!
>> William
